CN104558819B

CN104558819B - A kind of polypropene composition and polypropylene material and its application

Info

Publication number: CN104558819B
Application number: CN201310499360.6A
Authority: CN
Inventors: 李�杰; 张师军; 徐萌; 初立秋; 邹浩; 于鲁强; 王良诗; 邵静波; 张丽英; 吕明福
Original assignee: Sinopec Beijing Research Institute of Chemical Industry; China Petroleum and Chemical Corp
Current assignee: Sinopec Beijing Research Institute of Chemical Industry; China Petroleum and Chemical Corp
Priority date: 2013-10-22
Filing date: 2013-10-22
Publication date: 2017-06-06
Anticipated expiration: 2033-10-22
Also published as: CN104558819A

Abstract

The invention discloses a kind of polypropene composition, polypropylene material and its application.The polypropene composition contains polypropylene and antiseptic；The polyacrylic molecular weight distributing index is 2.5 5.5, the macromolecule hangover indices P I in molecular weight distribution width_HTMore than 1.9.The polypropene composition and polypropylene material not only have excellent anti-microbial property and the smell for reducing, also with mechanical property higher.

Description

A kind of polypropene composition and polypropylene material and its application

Technical field

The present invention relates to a kind of polypropene composition, polypropylene material and its application.

Background technology

At present, polypropylene fibre common mainly non-woven fabrics and polypropylene fiber（Long fibre and chopped fiber）.Wherein, poly- third Alkene non-woven fabrics has moistureproof, ventilative, light weight, good hand touch, nontoxic, non-stimulated, acid and alkali-resistance, rich color, cheap, recyclable The advantages of using again, is widely used in diaper, sanltary towel, medical supplies, sheet, filtering, packaging, building materials, agricultural chemicals at present The fields such as covering.

With the improvement of living standards, antibacterial nonwoven cloth product beneficial to health due to its feature of environmental protection, security, more receive The favor of people, for example, can be shielded women using antibacterial nonwoven cloth and baby in sanltary towel, baby's diaper, makes it It is not easy by bacterium and fungal infection, protective garment, mouth mask, sheet, mattress for being used in hospital etc. use antibacterial nonwoven cloth conduct Raw material, can effectively reduce the probability of cross-infection in hospital, more effectively protect medical worker and reduce the pain of patient, keep away Exempt from the economic loss that cross-infection brings.The filtering non-woven cloth used in the cleaning equipments such as air-conditioning, dust catcher, air refreshing machine makes The harmful bacteria and mould for causing or killing absorption in non-woven fabrics hole can be pressed down with antibacterial nonwoven cloth, its secondary dirt is prevented Dye, the threat that reduction brings to health.

Meanwhile, with the improvement of living standards, requirement of the people to textiles such as clothes also more and more higher, to comfortableness, Pliability, hygroscopicity, wholesomeness etc. propose requirement higher.

Fine-denier and polypropylene fiber in carding process fiber have softness, pro-skin, it is warming, breathe freely, lead wet, health, it is salubrious the characteristics of, preparation Fabric have good wicking and moisture-inhibiting perspiration wicking, and antibacterial fine-denier and polypropylene fiber in carding process fiber can also suppress or Harmful bacterium such as Staphylococcus aureus, Escherichia coli, streptococcus, Candida albicans is killed, eczema, Cuo can not only be reduced The skin disease odds such as sore, the ringworm of the foot, sweat stain, additionally it is possible to reduce gynaecological imflammation, wound infection, the probability of foreign odor generation, enter One step improves the comfort level of dress, is widely used in the fields such as sportswear, military clothes, bedding.

" denier " is a kind of technical term, refers to 9000m long filaments and weighs 1 gram, i.e. referred to as 1 denier.At present, generic term is " dtex " represents the fineness of fiber：10000m long fibres weigh 1 gram, i.e. 1dtex.Fiber is thinner, and denier is smaller.Fine-denier refers to Be fiber of the filament number in 3-0.6dtex.Super fine denier refers to fiber of the filament number in 0.1-0.55dtex.

At present, production fine-denier and polypropylene fiber in carding process fiber are higher to pp material requirement, and mobility will get well, and generally melt finger In more than 30g/10min, and to require narrow molecular weight distribution（Mw/Mn is 3.5-4.5 or so, even lower）.At present, nothing is produced The pp material of spinning cloth, fine-denier and polypropylene fiber in carding process fiber is substantially using peroxide to original molecule amount wider distribution Pp material is degraded, and obtains the Spinning PP Resin of flowing high and Narrow Molecular Weight Distribution, but is obtained in many cases Product, still often due to many reasons such as molecular weight, molecular weight distribution, isotacticity, often can not stably spin fine-denier and Polypropylene fiber in carding process fiber.Although also, by process regulation, still inevitably existing in the spinning material for obtaining of degrading Oxide is remained, and makes spinning process because being susceptible to fluctuation in many factors such as temperature, rotating speed, shearing, it is difficult to control fiber Uniformity and stability.For example, spinning temperature fluctuation is to more than 280 DEG C, the peroxide remained in raw material can cause polypropylene Rapid degraded, causes fine-denier polypropylene fibre spinning unstable, fracture of wire phenomenon occurs.Additionally, using edman degradation Edman spinning grade polypropylene Non-woven fabrics and fine-denier polypropylene fiber prepared by raw material is still inevitably present peroxide residual, there is final textile etc. The problems such as offending taste, skin sensitivity crowd generation discomfort.

The content of the invention

The invention aims to provide a kind of new polypropene composition, polypropylene material and the polypropylene group Compound and/or polypropylene material are used to prepare the application of non-woven fabrics or polypropylene fiber.The polypropene composition and polypropylene material Material not only has excellent antibacterial ability and relatively low smell, also with mechanical strength higher.

The invention provides a kind of polypropene composition, wherein, the polypropene composition contains polypropylene and antiseptic； The polyacrylic molecular weight distributing index is 2.5-5.5, the macromolecule hangover indices P I in molecular weight distribution width_HTIt is more than 1.9。

Present invention also offers the polypropylene material obtained by above-mentioned polypropene composition melting extrusion shaping.

Additionally, being used to prepare non-woven fabrics present invention also offers the polypropene composition and/or the polypropylene material Or the application of polypropylene fiber.

The polypropene composition that the present invention is provided contains antiseptic, the polypropene composition and polypropylene material for enabling to Material has excellent anti-microbial property.Additionally, the polyacrylic molecular weight distributing index is narrower and macromolecule hangover index is larger, The performance of the polypropene composition and polypropylene material for obtaining can not only be so set more to stablize and be imitated with shaping higher Rate, but also with mechanical strength higher.Speculate its reason, it may be possible to due to：On the one hand, molecular weight distributing index is narrower Polypropylene has broader newton platform area in flow process, and its viscosity is smaller with the fluctuation of shear rate change, extrusion capacity Easily stability contorting, and melt of the melt at spinneret orifice can be efficiently reduced swell phenomenon, reduce melt fracture and filament The possibility that surface defect occurs.On the other hand, macromolecule hangover indices P I_HTIt is higher show to exist in polypropylene it is more significant big Strand tail end.It is theoretical according to polypropylene homogeneous nucleation, macromolecular chain tail end in crystallization can Preferential Nucleation, make polyacrylic Crystallization temperature is raised, crystallization rate is accelerated, and not only contributes to the raising of mechanical property, but also can shorten molding cycle and carry Shaping efficiency high.

A preferred embodiment of the invention, polypropylene is prepared using two-stage polymerization method, and the first step is relatively low At a temperature of carry out prepolymerization, and second step then improves the temperature of polymerisation, and the polypropylene for so enabling to not only has There is narrower molecular weight distribution and larger macromolecule hangover indices P I_HT, and preparation process stabilization, without using peroxidating Thing, both reduces cost, turn avoid the Peculiar Smell caused using peroxide.

Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.

Specific embodiment

Specific embodiment of the invention is described in detail below.It should be appreciated that described herein specific Implementation method is merely to illustrate and explain the present invention, and is not intended to limit the invention.

The polypropene composition that the present invention is provided contains polypropylene and antiseptic；The polyacrylic molecular weight distributing index It is 2.5-5.5, the macromolecule hangover indices P I in molecular weight distribution width_HTMore than 1.9.

PI_HTIt is more high, show there is more significant macromolecular chain tail end in polypropylene.The macromolecule hangover indices P I_HT It is calculated as follows：PI_HT=10⁵× (Mz/Mp)/Mw, wherein, Mp is peak molecular weight, and Mw is weight average molecular weight, Mz It is Z-average molecular weight, unit is g/mol.Described Mp, Mw, Mz and molecular weight distributing index can be by gel permeation chromatographs （GPC）It is measured.

The present invention is not particularly limited to the polypropylene and the content of antiseptic in above-mentioned polypropene composition, for example, On the basis of the polypropylene of 100 weight portions, the content of the antiseptic can be 0.1-10 weight portions, preferably 0.3-3 Weight portion.

According to the present invention, in order that the polypropene composition for obtaining and polypropylene material are with excellent anti-microbial property Also there is mechanical property higher simultaneously, the content of the unit group [mmmm] of the polyacrylic isotaxy five is preferably greater than 85%, Further preferably greater than 90%, more preferably greater than 93%.

According to the present invention, in the polyacrylic preparation process, due to propylene monomer may occur " 2,1 " insertion and/ Or " 1,3 " insertion, cause the regularity of polypropylene molecule chain structure to destroy, fusing point reduction, so as to influence polyacrylic using warm Degree.The defect sturcture collectively referred to here in as position heterogeneous structure for so causing（regio-irregularity）.Isotactic polypropylene The structural formula of position heterogeneous structure is schematically as follows：

According to the present invention, in order to further improve the mechanical property of the polypropene composition and polypropylene material, preferably In the case of, the polypropylene does not contain the insertion of propylene 2,1 and the caused position heterogeneous structure of 1,3 insertions.It should be noted that " not containing " mentioned here does not refer to absolutely not to contain, and refers to propylene 2, and 1 insertion and 1,3 insertion contents are very low, generally Less than 0.01%, beyond the Monitoring lower-cut of instrument.

According to the present invention, the polyacrylic crystallization temperature Tc is preferably greater than 115 DEG C, more preferably greater than 120 DEG C, such energy Crystal structure after enough making the polypropylene that obtains crystallized is more perfect, so that with mechanical property higher.

According to the present invention, the content of xylene soluble part is preferably smaller than 4.4 weight % in the polypropylene, further preferably Less than 2.3 weight %, more preferably less than 1.6 weight %.Some polypropylene materials for being applied to contact food, medicine or solvent are come Say, xylene soluble content is lower, then it is transportable go out or be dissolved out or the content of material that extracts is lower, using it is upper more It is safe and reliable.

According to the present invention, the polypropylene can be prepared according to well known to a person skilled in the art various methods, example Such as, the polypropylene is prepared by the method for comprising the following steps：

（1）In Ziegler-Natta catalyst（Ziegler-Natta）In the presence of catalyst, by propylene at -10 DEG C to 50 DEG C, carry out prepolymerization under 0.1-100MPa, obtain pre-polymerization multiple for 2-3000 grams of polymer/gram catalyst, be preferably 3-2000 Gram polymer/gram catalyst, more preferably the 50-300 grams of propylene pre-polymer of polymer/gram catalyst；

（2）Under 91-150 DEG C, 1-6MPa, the propylene pre-polymer and propylene are polymerized.

In the present invention, the pressure refers both to gauge pressure.

Above-mentioned steps（1）And step（2）Batchwise polymerization operation can be carried out in a reactor, it is also possible to different anti- Answer and carry out continuous polymerization operation in device.For example, in preparation example of the invention, step（1）It is carried out continuously in vertical stirred tank, And step（2）It is carried out continuously in horizontal agitated vessel, i.e. continuous polymerization is carried out in different reactors.Additionally, step（1） And step（2）Reaction can in the gas phase carry out, can also carry out in the liquid phase, it is as well known to those skilled in the art to this.

According to the present invention, step（1）In, the prepolymerized temperature can be -10 DEG C to 50 DEG C, preferably 0-30 DEG C, More preferably 10-25 DEG C；The prepolymerized pressure can be 0.1-100MPa, more preferably preferably 1.0-6MPa, 1.5- 5.5MPa；The pre-polymerization multiple can be 2-3000 grams of polymer/gram catalyst, preferably 3-2000 grams polymer/gram catalysis Agent, more preferably 50-300 grams polymer/gram catalyst.Wherein, described " prepolymerization multiple " refer to prepolymer weight with The weight ratio of original addition catalyst.Additionally, the prepolymerization is preferably carried out in the liquid phase, the liquid phase of propylene can be specifically taken Bulk prepolymerization.

According to the present invention, step（2）In, the temperature of the polymerisation can be 91-150 DEG C, preferably 91-110 DEG C； The pressure of the polymerisation can be 1-6MPa, preferably 2-5MPa.The time of the polymerisation can be by needing To polyacrylic molecular size range suitably selected, for example, it is desired to obtain the larger polypropylene of molecular weight, then can extend The time of polymerisation；Need to obtain the less polypropylene of molecular weight, then can shorten the time of polymerisation.As a rule, The time of the polymerisation can be 0.5-4 hours, preferably 1-3 hours.Additionally, the polymerization is preferably entered in the gas phase OK.Specifically, can be carried out in gas phase horizontal agitated vessel.The gas phase horizontal agitated vessel is with horizontal type agitating shaft, chilling Liquid removes the horizontal retort of heat, and stirring vane therein can be one or more in T-shaped, rectangle, oblique oar, gate, wedge shape etc.. In polymerization process, the speed of agitator in gas phase horizontal agitated vessel can be 10-150 revs/min.

Additionally, in step（2）In, it usually needs add molecular weight regulator（Generally hydrogen）Poly- third obtained with control The melt mass flow rate of alkene.The addition of the molecular weight regulator can reasonably be selected according to actual conditions, In the present invention, the addition of the molecular weight regulator is so that the polyacrylic melt mass flow rate MFR controls for obtaining In 0.01-1000g/10min, 1-1000g/10min is preferably controlled in, further preferably control is more excellent in 1-399g/10min Selected control system is defined in 10-100g/10min, and this those skilled in the art can be known, be will not be described in great detail herein.

According to the present invention, although the Ziegler-Natta catalyst can be existing various suitable for preparing poly- third The Ziegler-Natta catalyst of alkene, but in order that the polypropylene for obtaining has narrower molecular weight distributing index, height higher Molecule hangover index, under preferable case, the Ziegler-Natta catalyst contains solids containing titanium catalytic component and alkyl aluminum Compound and selectivity contain external donor compound.

According to the present invention, the solids containing titanium catalytic component for example can be by alkoxyl magnesium compound, titanium compound With the catalytic product of internal electron donor compound.

The formula of the alkoxyl magnesium compound is preferably such as formula（Ⅱ）It is shown：

Mg(OR¹)_2-m(OR²)_mFormula（Ⅱ）,

Formula（Ⅱ）In, R¹And R²It is identical or different, and it is each independently selected from C₁-C₈Straight or branched alkyl, 0≤m≤ 2.Preferably, R¹And R²Be each independently methyl, ethyl, propyl group, isopropyl, butyl, isobutyl group, n-hexyl,（2- ethyls）Oneself Base；It is particularly preferred that R¹It is ethyl, R²It is (2- ethyls) hexyl.M can reasonably be selected in the range of 0-2, preferably 0.001≤m≤0.5, more preferably further preferred 0.001≤m≤0.25,0.001≤m≤0.1.It is emphasized that formula Represented alkoxyl magnesium, illustrate only the composition content of each alkoxy, i.e. mol ratio, not fully represent the specific of alkoxyl magnesium Structure.Specifically, the mol ratio that ethyoxyl and isopropoxy in alkoxyl magnesium compound are only represented such as Mg (OEt) (OiPr) is 1, It both can be by the mixture, or ethyoxyl isopropyl oxygen of diethoxy magnesium that mol ratio is 1 and diisopropoxy magnesium Base magnesium compound, can also be the mixture of diethoxy magnesium, diisopropoxy magnesium and ethyoxyl isopropoxy magnesium compound, That is, it can be ethyoxyl with isopropoxy total mole number than the various structures for 1 alkoxyl magnesium compound group into mixing Thing.Wherein, Et represents ethyl, and iPr represents isopropyl.

The present invention is not particularly limited to the profile of the alkoxyl magnesium compound, preferably spherical.Further, institute The average grain diameter D50 for stating spherical alkoxyl magnesium compound can be 10-150 μm, preferably 15-100 μm, more preferably 18- 80μm；Particle diameter distribution index SPAN is less than 1.1, preferably smaller than 1.05.Wherein, the computing formula of the particle diameter distribution index SPAN For：SPAN=（D90-D10）/ D50, wherein, D90 represents that, corresponding to the particle diameter that accumulating weight point rate is 90%, D10 is represented and corresponded to Accumulating weight point rate is 10% particle diameter, and D50 represents the particle diameter that correspondence accumulating weight point rate is 50%.

According to the present invention, micro magnesium halide can also be contained in the solids containing titanium catalytic component（Such as MgI₂And/or MgCl₂）Or its alcohol adduct, but with formula（II）On the basis of shown alkoxyl magnesium compound and the gross weight of magnesium halide, formula（II） The content of shown alkoxyl magnesium compound should be higher than that 90 weight %, more preferably higher than preferably above 95 weight %, 98 weight %.

According to the present invention, the alkoxyl magnesium compound can be commercially available, it is also possible to according to existing method system It is standby to obtain.For example, the alkoxyl magnesium compound can be by magnesium metal alcohol (R corresponding with alkoxy¹OH and/or R²OH it is) and mixed Conjunction halogenating agent reacts prepare under an inert atmosphere.Wherein, the mixing halogenating agent is the mixing of halogen and halogen compounds Thing.The halogen can be one or more in iodine, bromine and chlorine.The not limiting example of the halogen compounds is：Chlorination Magnesium, magnesium bromide, magnesium iodide, potassium chloride, KBr, KI, calcium chloride, calcium bromide, calcium iodide, mercury chloride, mercuric bromide, iodate One or more in mercury, ethyoxyl magnesium iodide, methoxyl group magnesium iodide, isopropyl magnesium iodide, hydrogen chloride, chloracetyl chloride etc..It is mixed The mixture that halogenating agent is particularly preferably iodine and magnesium chloride is closed, it is further preferred that the weight ratio of iodine and magnesium chloride is 1:0.02- 20, more preferably 1:0.1-10.

According to the present invention, in the preparation process of above-mentioned alkoxyl magnesium compound, the magnesium metal with mix halogenating agent The molar ratio of total halogen atom such as can be 1:0.0002-0.2, preferably 1:0.001-0.08.It is described corresponding with alkoxy Alcohol such as can be 4-50 with the part by weight of magnesium metal:1, preferably 6-25:1.R¹OH and R²The mol ratio Y of OH is 3 (2-g)/g> Y>(2-g)/g, wherein, 0≤g≤2, preferably 0.001≤g≤0.5, further preferred 0.001≤g≤0.25, more preferably 0.001 ≤g≤0.1。

According to the present invention, in the preparation process of above-mentioned alkoxyl magnesium compound, the temperature of the reaction for example can be 30-90 DEG C, more preferably preferably 30-80 DEG C, 50-75 DEG C.In practical operation, the hydrogen that can be produced by observing response Discharge stop judging that reaction terminates.

The present invention is not particularly limited to the shape of the magnesium metal, for example, can be graininess, silk ribbon shape or powder Last shape.In order that the average grain diameter of the alkoxyl magnesium compound of generation is maintained in suitable scope, and particle shape is excellent, institute It is 10-360 μm of spherical metal magnesium to state magnesium metal preferably average grain diameter, and more preferably average grain diameter is spherical for 50-300 μm Magnesium metal.In addition, the present invention has no to the surface of the magnesium metal especially limit, but if in the surface shape of the magnesium metal The envelopes such as hydrate, then can make reaction slack-off, it is therefore preferable that in the case of, the total content of activated carbon in the magnesium metal>95 Weight %, more preferably>98 weight %.

The present invention contains to the water in alcohol corresponding with alkoxy described in the preparation process in above-mentioned alkoxyl magnesium compound Amount has no and especially limits, in order that the alkoxyl magnesium compound for obtaining has more excellent performance, it is desirable to which moisture is fewer It is better, it usually needs water content control in the alcohol corresponding with alkoxy, in below 1000ppm, is preferably controlled in 200ppm Below.

According to the present invention, the inert atmosphere is known to the skilled person, preferably blanket of nitrogen and/or argon atmospher. Additionally, the preparation of the alkoxyl magnesium compound is generally using atent solvent as reaction medium.Wherein, the atent solvent can be with It is C₆-C₁₀Alkane or aromatic hydrocarbons at least one, preferably hexane, heptane, octane, decane, benzene,toluene,xylene and its At least one in derivative etc..

According to the present invention, in the preparation process of above-mentioned alkoxyl magnesium compound, magnesium metal alcohol corresponding with alkoxy, Mixing halogenating agent and atent solvent can disposably put into, it is also possible to which selection puts into by several times.Input raw material can be prevented wink by several times When produce substantial amounts of hydrogen, so as to prevent due to the alcohol or the spittle of halogenating agent that instantaneous substantial amounts of hydrogen is produced and caused, from peace From the point of view of full property angle and reaction uniformity, preferably this feed way.The number of times of segmentation can be according to the rule of reactor The consumption of mould and various materials determines.After the completion of reaction, the end product dialkoxy magnesium for obtaining can also may be used with kept dry To be suspended in inert diluent used during the titanium-containing catalyst solid constituent for preparing lower step.

According to the present invention, the formula of the titanium compound is preferably such as formula（Ⅲ）It is shown：

Ti(OR)_4-nX_nFormula（Ⅲ）,

Formula（Ⅲ）In, R is C₁-C₁₄Aliphatic hydrocarbyl or aromatic hydrocarbyl, X is halogen atom, and n is the integer of 0-4.When n is 2 When following, formula（Ⅲ）Present in multiple R can be with identical or different.The halogen atom can be chlorine, bromine or iodine.Specifically, The titanium compound can be selected from tetraalkoxy titanium, titanium tetrahalide, three alkyl groups in the halogenalkoxy titaniums, dihalo- dialkoxy titanium and single alkane of halogen three At least one in epoxide titanium.More specifically, the tetraalkoxy titanium is selected from titanium tetramethoxide, purity titanium tetraethoxide, four positive third In epoxide titanium, tetraisopropoxy titanium, four titanium n-butoxides, four isobutoxy titaniums, four cyclohexyloxy titaniums and four phenoxide titaniums extremely Few one kind；The titanium tetrahalide is selected from least one in titanium tetrachloride, titanium tetrabromide and titanium tetra iodide；Three alkyl groups in the halogenalkoxy Titanium is selected from trichloromethoxy titanium, tri-chloroethoxy titanium, trichlorine titanium propanolate, trichlorine titanium n-butoxide and tribromo ethanolato-titanium It is at least one；The dihalo- dialkoxy titanium is selected from dichloro dimethoxy titanium, dichlorodiethyl epoxide titanium, the positive propoxy of dichloro two At least one in titanium, dichloro diisopropoxy titanium and dibromo diethoxy titanium；Single halogen tri-alkoxy titanium is selected from a chlorine three At least one in methoxyl group titanium, a chlorine triethoxy titanium, the positive propoxy titanium of a chlorine three and the titanium isopropoxide of a chlorine three.The titanium Compound is preferably titanium tetrahalide compound, particularly preferably titanium tetrachloride.

According to the present invention, the internal electron donor compound is preferably formula such as formula（Ⅳ）Shown diether compound：

Formula（Ⅳ）In, R₁And R₂It is identical or different, and it is each independently selected from C₁-C₂₀Straight chain, branched or ring-type aliphatic hydrocarbon Base；R₃、R₄、R₅、R₆、R₇And R₈It is identical or different, and it is each independently selected from the C of hydrogen, halogen atom, straight or branched₁-C₂₀Alkane Base, C₃-C₂₀Cycloalkyl, C₆-C₂₀Aryl, C₇-C₂₀Alkaryl and C₇-C₂₀Aralkyl；Optionally, R₃-R₈Group between can be bonded into Ring.Preferably, R₁And R₂It is identical or different, and it is each independently selected from C₁-C₆The alkyl of straight or branched；R₅、R₆It is identical or not Together, and it is each independently selected from C₁-C₁₀The alkyl of straight or branched, C₃-C₁₀Cycloalkyl.

The instantiation of the internal electron donor compound can be included but is not limited to：2- isopropyl -2- isopentyl -1,3- Dimethoxy propane, 9,9- bis-（Methoxy）Fluorenes, 2- isobutyl group -2- isopropyl -1,3- dimethoxy propanes, the rings of 2,2- bis- Dicyclopentyldimetoxy propane, 2,2- diphenyl -1,3- dimethoxy propanes, 2- isobutyl group -2- isopropyl -1,3- dimethoxys third One kind or many in alkane, 2,2- bicyclopentyl -1,3- dimethoxy propanes, 2,2- diisobutyl -1,3- dimethoxy propanes etc. Kind.

According to the present invention, in the preparation process of the solids containing titanium catalytic component, titanium in the titanium compound with The mol ratio of the magnesium in alkoxyl magnesium compound can be 0.5-100:1；Preferably 1-50:1.The internal electron donor compound Can be 0.005-10 with the mol ratio of magnesium in alkoxyl magnesium compound:1；Preferably 0.01-1:1.

According to the present invention, the preparation process of the solids containing titanium catalytic component is generally situated between using atent solvent as reaction Matter.Wherein, the atent solvent can be selected from C₆-C₁₀Alkane or aromatic hydrocarbons at least one, preferably hexane, heptane, pungent At least one in alkane, decane, benzene,toluene,xylene or derivatives thereof etc., most preferably toluene.The atent solvent and alkane The molar ratio of the magnesium in epoxide magnesium compound such as can be 0.5-100:1, preferably 1-50:1.

According to the present invention, in the preparation process of the solids containing titanium catalytic component, the alkoxyl magnesium compound, titanium The addition sequence of compound, internal electron donor compound and atent solvent is not particularly limited, for example, can be in atent solvent In the presence of be well mixed above-mentioned each component, it is also possible to dilute each composition with atent solvent in advance, then again will be respective molten Liquid is well mixed.Number of times for mixing also is not particularly limited, can be with mixed once, it is also possible to mix several times.Specifically Ground, can prepare solids containing titanium catalytic component according to following several method：

Method one：

1st, alkoxyl magnesium carrier compound, internal electron donor and atent solvent are configured to suspension, then with a part The mixture reaction that titanium compound and atent solvent are formed, filtering obtains solid product；2nd, the solid product that will be obtained adds another Continue to react in the mixture of a part of titanium compound and atent solvent, filtering obtains solid product；3rd, the reaction of the 2nd step is repeated 2-4 times；4th, the solid product for finally obtaining is washed with atent solvent, solids containing titanium catalytic component is obtained.Wherein, preparation process In, the amount of the titanium compound for adding every time can carry out reasonable selection according to the number of times for repeating reaction, for example, can be 1/ N, n are the number of times+2 for repeating the 2nd step.

Method two：

1st, alkoxyl magnesium carrier compound, a part of internal electron donor and atent solvent are configured to suspension, Ran Houyu The mixture reaction that a part of titanium compound and atent solvent are formed, filtering obtains solid product；2nd, the solid product that will be obtained Continuation is anti-in adding the mixture formed by the internal electron donor of the titanium compound, atent solvent and remainder of another part Should, filtering obtains solid product；3rd, gained solid product continuously adds the mixing of titanium compound and atent solvent a part of again Continue to react in thing, filtering obtains solid product；4th, the 3rd step is repeated to react 2-4 times；5th, last time is washed with atent solvent The solid product for obtaining, obtains solids containing titanium catalytic component.Wherein, in preparation process, the titanium compound for adding every time Amount can according to repeat reaction number of times carry out reasonable selection, for example, can be 1/n, n be repeat the 3rd step number of times+3.

Method three：

1st, alkoxyl magnesium carrier compound and atent solvent are configured to suspension, then with a part of titanium compound and lazy Property solvent formed mixture reaction, add internal electron donor compound, continue react, filtering, obtain solid product；2nd, incite somebody to action To solid product add the mixture that another part titanium compound and atent solvent formed in continue to react, filtering, consolidate Body product；3rd, the 2nd step is repeated to react 2-4 times；4th, the solid product for finally obtaining is washed with atent solvent, solids containing titanium is obtained and is urged Agent component.Wherein, in preparation process, the amount of the titanium compound for adding every time can be carried out according to the number of times for repeating reaction Reasonable selection, for example, can be 1/n, n be the number of times+2 for repeating the 2nd step.

Method four：

1st, alkoxyl magnesium carrier compound, a part of internal electron donor and atent solvent are configured to suspension, Ran Houyu The mixture reaction that a part of titanium compound and atent solvent are formed, adds the internal electron donor compound of remainder, after Continuous reaction, filtering obtains solid product；2nd, the solid product that will be obtained is added by another part titanium compound and atent solvent shape Into mixture in continue react, filtering, obtain solid product；3rd, the 2nd step is repeated to react 2-4 times；4th, washed with atent solvent The solid product for finally obtaining, obtains solids containing titanium catalytic component.Wherein, in preparation process, the titanizing for adding every time The amount of compound can according to repeat reaction number of times carry out reasonable selection, for example, can be 1/n, n be repeat the 2nd step number of times+ 2。

According to the present invention, in the preparation process of the catalyst solid constituent, the atent solvent of washing is preferably oneself Alkane.The present invention is not particularly limited for the method washed, it is preferred to use the mode such as decantation, filtering is carried out.Atent solvent Usage amount, wash time, washing times are not particularly limited, for example, relative in 1 mole of alkoxyl magnesium compound Magnesium, the consumption of the atent solvent for washing for example can be 1-1000 moles, preferably 10-500 moles.The washing when Between for example can be 1-24 hours, preferably 6-10 hours.Additionally, from washing homogeneity and the angle of detersive efficiency, institute State washing is preferably carried out under agitation.

According to the present invention, in the preparation process of the solids containing titanium catalytic component, by alkoxyl magnesium compound, titanizing Compound, internal electron donor compound and the catalytic condition of atent solvent are generally included：Reaction temperature can be for -40 DEG C extremely 200 DEG C, preferably -20 DEG C to 150 DEG C；Reaction time can be -20 hours 1 minute, preferably -8 hours 5 minutes.

According to the present invention, the alkyl aluminum compound in the Ziegler-Natta catalyst for example can be such as formula（Ⅴ）Institute Show：

AlR′_pX_3-pFormula（Ⅴ）,

Formula（Ⅴ）In, R ' is hydrogen or C₁-C₂₀Alkyl, X is halogen, and p is the integer of 1-3.Specifically, the alkyl calorize The example of compound can be included but is not limited to：Triethyl aluminum, tri-propyl aluminum, three n-butylaluminums, triisobutyl aluminium, three n-octyls Aluminium, a hydrogen diethyl aluminum, a hydrogen diisobutyl aluminum, aluminium diethyl monochloride, a chloro-di-isobutyl aluminum, sesquialter ethylmercury chloride aluminium and two One or more in chloroethyl aluminium, preferably triethyl aluminum and/or triisobutyl aluminium.

According to the present invention, in the Ziegler-Natta catalyst, the external electron donor can optionally add Enter.It was found by the inventors of the present invention that after adding external electron donor, the content of xylene soluble part in polypropylene can be reduced.

The external donor compound can be the conventional selection of this area, preferably formula such as formula（Ⅰ）Shown has Organic silicon compound：

R^1″ _m″R^2″ _n″Si(OR^3″)_4-m″-n″Formula（Ⅰ）,

Formula（Ⅰ）In, R^1″And R^2″It is identical or different, and it is each independently halogen, hydrogen atom, C₁-C₂₀Alkyl, C₃-C₂₀ Cycloalkyl, C₆-C₂₀Aryl or C₁-C₂₀Haloalkyl；R^3″It is C₁-C₂₀Alkyl, C₃-C₂₀Cycloalkyl, C₆-C₂₀Virtue Base or C₁-C₂₀Haloalkyl；M " and n " is each independently the integer of 0-3, and m "+n "<4.The organo-silicon compound Specific example can be included but is not limited to：Trimethylmethoxysilane, diisopropyl dimethoxy silane, diisobutyl dimethoxy Base silane, isopropyl butyldimethoxysilane, di-t-butyl dimethoxysilane, tertbutyl methyl dimethoxysilane, T-butylethyl dimethoxysilane, tert-butyl group propyldimethoxy-silane, ter /-butylisopropyl dimethoxysilane, cyclohexyl Methyl dimethoxysilane, Dicyclohexyldimethoxysilane, cyclohexyl-t-butyldimethoxysilane, cyclopentyl-methyl two Methoxy silane, cyclopentyl ethyl dimethoxysilane, dicyclopentyl dimethoxyl silane, cyclopentyl cyclohexyl dimethoxy silicon It is alkane, double（2- methylcyclopentyls）Dimethoxysilane, dimethoxydiphenylsilane, diphenyl diethoxy silane, phenyl three Ethoxysilane, MTMS, MTES, ethyl trimethoxy silane, propyl trimethoxy silicon Alkane, propyl-triethoxysilicane, isopropyltri-methoxysilane, isopro-pyltriethoxysilane, butyl trimethoxy silane, fourth Ethyl triethoxy silicane alkane, trimethoxysilane, isobutyl triethoxy silane, amyltrimethoxysilane, isopentyl Trimethoxy silane, cyclopentyl-trimethoxy-silane, cyclohexyl trimethoxy silane, dimethoxydiphenylsilane, diphenyl Diethoxy silane, phenyltrimethoxysila,e, phenyl triethoxysilane, n-propyl trimethoxy silane, vinyl front three TMOS, VTES, tetramethoxy-silicane, tetraethoxysilane, four butoxy silanes etc..These are organic Silicon compound can be used individually, it is also possible to be applied in combination two or more.Preferably, the organosilicon compound Thing is selected from dicyclopentyl dimethoxyl silane, diisopropyl dimethoxy silane, second, isobutyl dimethoxy silane, cyclohexyl first Base dimethoxysilane, dimethoxydiphenylsilane, methyl-t-butyldimethoxysilane, tetraethoxysilane, propyl group three One or more in Ethoxysilane and isobutyl triethoxy silane.

According to the present invention, in the preparation process of the Ziegler-Natta catalyst, in the alkyl aluminum compound The molar ratio of the titanium in aluminium and the solids containing titanium catalytic component such as can be 20-500:1；Preferably 50-500:1；More Preferably 50-100:1.Aluminium in the alkyl aluminum compound such as may be used with the molar ratio of the silicon of the external donor compound Think 0.1-500:1, preferably 1-200:1, more preferably 3-100:1.

The present invention is not particularly limited to the species of the antiseptic, and as a rule, the antiseptic can be inorganic Antiseptic, or organic antibacterial agent.

The species of the inorganic antiseptic can be the conventional selection of this area, for example, can be with Ag⁺Ion is activity The Ag series antibacterial agents of component, with Zn²⁺For the Zn series antibacterial agents of active constituent and simultaneously with Ag⁺And Zn²⁺It is the Ag-Zn of active constituent One or more in series antibacterial agent.It is described with Ag⁺Ion for active constituent Ag series antibacterial agents instantiation include but not It is limited to：Basic zirconium phosphate carries Ag antiseptics, calcium phosphate and carries Ag antiseptics, zeolite load Ag antiseptics, hydroxyapatite load Ag antiseptics, glass Glass is carried one or more during Ag antiseptics, TiO 2 carrying Ag antiseptics and zinc oxide carry Ag antiseptics.It is described with Zn²⁺It is work The instantiation of the Zn series antibacterial agents of property component is included but is not limited to：Zinc oxide carries Zn antiseptics, basic zirconium phosphate and carries Zn antiseptics, phosphorus Sour calcium carry Zn antiseptics, zeolite carry Zn antiseptics, hydroxyapatite carry one kind that Zn antiseptics and glass carried in Zn antiseptics or It is various.It is described with Ag⁺And Zn²⁺For the instantiation of the Ag-Zn series antibacterial agents of active constituent is included but is not limited to：Basic zirconium phosphate is carried Ag-Zn antiseptics, zeolite carry Ag-Zn antiseptics, hydroxyapatite and carry Ag-Zn antiseptics, glass load Ag-Zn antiseptics and dioxy Change one or more during titanium carries Ag-Zn antiseptics.Preferably, the inorganic antiseptic be basic zirconium phosphate carry Ag antiseptics and/or Basic zirconium phosphate carries Ag-Zn antiseptics.

According to the present invention, the particle diameter of the inorganic antiseptic is preferably 10nm-20 μm, more preferably 10nm-2 μm, so The polypropene composition is enabled to be less prone to fracture of wire phenomenon in process.

The species of the organic antibacterial agent can also be the conventional selection of this area, for example, can be probenazole, hundred bacterium Clearly, the chloro- 2- n-octyls -4- isothiazolines -3- of carbendazim, ZPT, Kathon, 4,5- bis- Ketone, poly (hexamethylene) hydrochloride, hexamethylene, C12H7CI3O2, adjacent phenyl benzene In phenol, 10,10 '-oxygen connection phenoxarsine, normal-butyl BIT and IPBC one Plant or various.Preferably, the organic antibacterial agent is poly (hexamethylene) hydrochloride and/or hexamethylene.

Additionally, when the fusing point of the organic antibacterial agent is less than 160 DEG C, being not particularly limited to its particle size； When fusing point is higher than 160 DEG C, in order to reduce the possibility of generation fracture of wire in process as far as possible, its particle diameter is preferably smaller than 20 μ M, more preferably less than 2 μm.

According to the present invention, the antiseptic is preferably containing powdered rubber and inorganic antiseptic and/or organic antibacterial agent Complex antimicrobials, are not only more beneficial for dispersion of the antiseptic in polypropylene matrix, additionally it is possible to make institute using the complex antimicrobials The processing characteristics for stating polypropene composition and polypropylene material is more stablized, it is not easy to fracture of wire phenomenon occur.Additionally, the powder The weight of total consumption of the consumption and inorganic antiseptic and organic antibacterial agent of rubber is than preferably 0.1-10:1, more preferably 0.2- 5:1。

According to the present invention, particularly preferably, the antiseptic is to carry Ag antiseptics containing the powdered rubber, basic zirconium phosphate And/or basic zirconium phosphate carries the compound of Ag-Zn antiseptics and poly (hexamethylene) hydrochloride and/or hexamethylene Antiseptic.The basic zirconium phosphate carries Ag antiseptics and basic zirconium phosphate carries total consumption and the poly (hexamethylene) of Ag-Zn antiseptics The weight of total consumption of hydrochlorate and hexamethylene is than preferably 0.1-10:1, more preferably 1-10:1.

According to the present invention, the powdered rubber can be sulfide powder rubber, or unvulcanised powdered rubber.

Wherein, the instantiation of the sulfide powder rubber is included but is not limited to：Sulfurized natural rubber, vulcanization butylbenzene rubber Glue, sulfurized nitrile rubber, vulcanization neoprene, vulcanization polybutadiene rubber, vulcanization polyacrylate rubber, vulcanization butylbenzene pyrrole One or more in rubber, vulcanization isoprene rubber, vulcanization EP rubbers and vulcanization polyurethane rubber, preferably vulcanize butylbenzene rubber Glue, more preferably vulcanizes carboxylic styrene-butadiene rubber.

The preparation method of the sulfide powder rubber can be included in rubber latex and add or be added without crosslinking coagent, spoke Again through drying according to after, sulfide powder rubber is obtained.Specifically may be referred to the method disclosed in CN1402752A is carried out.Using the party The gel content of the sulfide powder rubber that method is obtained can reach more than 60 weight %, without with free by interleaving agent after drying Flowing.Additionally, each particulate in the sulfide powder rubber obtained using the method is homogeneous, i.e. single particulate exists All it is homogeneous on composition, does not have to find the not homogeneous phenomenons such as layering, split-phase in particulate under the observation of existing microtechnic. The sulfide powder rubber is obtained by fixing rubber particles particle diameter rubber latex cross-linking radiation.Therefore, its average grain Footpath is consistent substantially with the particle diameter of latex particle in rubber latex, the latex particle that the rubber latex is obtained in synthesis Particle size scope is the particle size range of gained sulfide powder rubber particles.

Additionally, the instantiation of the unvulcanised powdered rubber is included but is not limited to：Powder natural rubber, powder ethene- Vinyl acetate rubber（EVA）, powder styrene butadiene rubber, powder polybutadiene rubber, PNBR, powdered polychloroprene rubber, powder Last silicon rubber, powdery propylene acid esters rubber, powder butadiene-styrene-vinyl pyridine rubber, powder isoprene rubber, powder butyl rubber, powder polysulfide rubber One or more in glue, powdery propylene acid esters-butadiene rubber, powder polyurethane rubber and powdered fluororubber.

The preparation method of the unvulcanised powdered rubber can include with crosslinking-type rubber emulsion as raw material, obtain after drying Arrive.Specifically may be referred to the method disclosed in CN1353131A is carried out.The grain of the unvulcanised powdered rubber obtained using the method Footpath is consistent substantially with the particle diameter of latex particle in crosslinking-type rubber emulsion, the glue that crosslinking-type rubber emulsion is obtained in synthesis The particle size scope of milk particle is the particle size range of gained cross-linking type unvulcanised powdered rubber particle.This non-sulphur of cross-linking type Changing powdered rubber need not add free-flowing by interleaving agent, and its gel content and the crosslinking-type rubber emulsion as raw material Gel content is consistent.It is using each particulate in the cross-linking type unvulcanised powdered rubber that the above method is prepared Homogeneous, i.e. single particulate is all in composition homogeneous, without discovery point in particulate under the observation of existing microtechnic The not homogeneous phenomenon such as layer, split-phase.

In accordance with the present invention it is preferred that, the powdered rubber is powder ethene-vinyl acetate rubber（EVA）And/or powder fourth Benzene rubber；It is further preferred that the gel content of the powdered rubber is more than 75 weight %；It is highly preferred that the powdered rubber Average particulate diameter be 100-500nm.In the present invention, the gel content refers to the weight of crosslinking rubber in powdered rubber Account for the ratio of powdered rubber gross weight.

According to the present invention, the polypropene composition can also optionally contain dispersant, antioxygen according to actual conditions One or more in agent, acid-acceptor and processing aid.

The present invention is not particularly limited to the consumption of the dispersant, antioxidant, acid-acceptor and processing aid, for example, On the basis of the polypropylene of 100 weight portions, the consumption of the dispersant can be 0.1-0.3 weight portions, the antioxidant Consumption can be 0.1-0.3 weight portions, the consumption of the acid-acceptor can be 0.03-0.1 weight portions, the processing aid Consumption can be 0.05-1 weight portions.

According to the present invention, the Main Function of the dispersant is the dispersiveness for improving antiseptic in polypropylene matrix, with Improve antimicrobial efficiency and reduce the generation of fracture of wire phenomenon in spinning process.The species of the dispersant can be the normal of this area Rule selection.For example, the dispersant can be ethylene bis stearamide（EBS）And/or Tissuemat E, preferably ethylene is double stearic Acid amides（EBS）.

According to the present invention, the antioxidant can for it is existing it is various be prevented from or delay the aging material of polypropylene, For example, can be phenolic antioxidant and/or phosphite ester kind antioxidant.

There is no particular limitation to the species of the phenolic antioxidant for the present invention, for example, can for four [β-（The uncles of 3,5- bis- Butyl -4- hydroxy phenyls）Propionic acid] pentaerythritol ester（Referred to as：Antioxidant 1010）, (the 3,5- bis- of 1,3,5- trimethyls -2,4,6- three Tertiary butyl-4-hydroxy benzyl) benzene（Referred to as：Antioxidant 330）, 1,3,5- tri- (3,5- di-tert-butyl-4-hydroxyl benzyls) isocyanide Uric acid（Referred to as：Antioxidant 3114）With β-（3,5- di-tert-butyl-hydroxy phenyls）The positive octadecanol ester of propionic acid（Referred to as：Antioxygen Agent 1076）In one or more.

Also there is no particular limitation for species of the present invention to the phosphite ester kind antioxidant, for example, can be three（2,4- Di-tert-butyl-phenyl）Phosphite ester（Referred to as：Irgasfos 168）, it is double（2,4- DI-tert-butylphenol compounds）Pentaerythritol diphosphites （Referred to as：Antioxidant 626）With it is double（2,4- di-tert-butyl-phenyls）Pentaerythritol diphosphites（Referred to as：Antioxidant PEP-36）In One or more, particularly preferably three（2,4- di-tert-butyl-phenyls）Phosphite ester.

According to the present invention, the Main Function of the acid-acceptor is the catalyst of residual in the removal polypropylene（Usually Calcium stearate and/or hydrotalcite）And further reduce polyacrylic smell.

According to the present invention, the processing aid can be the existing various processing that can improve the polypropene composition The material of performance, for example, can be fluorinated processing aid and/or silicon rubber powder-polyethylene glycol processing aid, preferably powder Last silicon rubber-polyethylene glycol processing aid.

Wherein, the fluorinated processing aid is preferably the fluoropolymer additive of 3M companies（PPA）, trade name Tai Lema^TM。

The silicon rubber powder-polyethylene glycol processing aid refers to that the processing containing silicon rubber powder and polyethylene glycol is helped Agent.Wherein, the silicon rubber powder and the weight ratio of polyethylene glycol can be 0.1-10:1, preferably 1-4:1.The powder silicon The gel content of rubber is preferably not less than 75 weight %, and average particle size is preferably 100-5000nm.The silicon rubber powder can Prepared with according to the method disclosed in US6423760 and CN00816450.Additionally, in order to be more beneficial for the polypropylene group The raising of compound and polypropylene material processing characteristics, before the silicon rubber powder is mixed with polyethylene glycol, preferably first by institute State silicon rubber powder to be pre-processed with a small amount of silicone oil, specifically, the method for the pretreatment can be in 100 weight portions The silicone oil of 0.5-2 weight portions is added in silicon rubber powder, is then stirred in homogenizer, such silicone oil can be uniform It is absorbed to the surface of the cross-linked structure of the silicon rubber powder.The silicone oil for example can be poly- diformazan silica oxygen alkane, poly- two One or more in ethoxy radical siloxane and PSI, preferably poly- diformazan silica oxygen alkane.Additionally, described The number-average molecular weight of polyethylene glycol for example can be 2000-20000, preferably 6000-10000.

According to the present invention, the method that the polypropene composition melting extrusion is molded, condition and extruder used Species it is also known to those skilled in the art.It is for instance possible to use double screw extruder, Single screw extrusion can also be used Machine carries out melting extrusion shaping to the polypropene composition after being well mixed, it is possible to which the shape according to extruder die head is obtained not Similar shape（Such as graininess, film-form）Polypropylene material, this those skilled in the art can be known, will no longer go to live in the household of one's in-laws on getting married herein State.Additionally, the condition of the extrusion molding generally include screw speed can be for 150-360 revs/min, each zone temperatures can be with Respectively 170-190 DEG C, 175-240 DEG C, 180-250 DEG C, 180-250 DEG C, 180-250 DEG C, 175-240 DEG C, each section it is true Reciprocal of duty cycle can be 0.02MPa-0.09MPa.

Additionally, being used to prepare non-woven fabrics or third present invention also offers the polypropene composition and/or polypropylene material The application of synthetic fibre fiber.

Below will the present invention will be described in detail by embodiment.

In following preparation example and contrast preparation example, propylene and hydrogen are polymer grade, have passed through dehydration, deoxidation treatment.

In following preparation example, contrast preparation example, embodiment and comparative example：

1st, molecular weight distributing index Mw/Mn, peak molecular weight Mp, weight average molecular weight Mw and Z-average molecular weight Mz use Britain The gel permeation chromatograph combination infrared inspection of IR5 types of the model PL-GPC 220 of Polymer Laboratories companies production Survey device determine, wherein, the chromatographic column in gel permeation chromatograph be 3 series connection 10 μm of MIXED-B posts of Plgel, solvent and Mobile phase is 1,2,4- trichloro-benzenes（Antioxidant DBPC 2,6 ditertiary butyl p cresol containing 0.3g/1000mL）, column temperature is 150 DEG C, Flow velocity is 1.0mL/min, and universal calibration is carried out using PL companies production EasiCal PS-1 Narrow distribution polystyrenes standard specimens.

Macromolecule hangover indices P I_HTAccording to the following formula（1）It is calculated：

PI_HT=10⁵×(Mz/Mp)/Mw （1）.

2nd, the assay of the unit group [mmmm] of isotaxy five：

Due to¹³In C-NMR spectrums, chemical shift is higher for the methyl carbon area of 19.5-22.5ppm can provide resolution ratio Stereoregular information, obtains three unit group isotactics, isotactic-rule, the content of an a rule-rule, therefore, use the measurement knot in the area Really and according to formula（2）Calculate the content of the unit group [mmmm] of isotaxy five：

Wherein, [mm], [mr], [rr] are respectively three unit group isotactics, isotactic-rule, the content of an a rule-rule.

Using the nuclear magnetic resonance chemical analyser of the model AVANCE III of Bruker companies of Switzerland（NMR）Determine under 400MHz Polyacrylic nuclear-magnetism carbon spectrum（¹³C-NMR）, wherein, solvent is deuterated o-dichlorohenzene, and sample concentration is that 250mg samples/2.5mL is molten Agent.To prevent sample oxidative degradation in dissolving and data acquisition, 2, the 6- di-t-butyls -4- of 2mg is added in the sample Methylphenol antioxidant（Abbreviation BHT）.140 DEG C of dissolved samples, collection¹³C-NMR, 125 DEG C of test temperature, the milli of detecting head specification 10 Rice, 90 ° of pulses, sampling time AQ is 5 seconds, and time delay D1 is 1 second, scanning times 6000 times.Spectral peak is assert referring in particular to ginseng Examine document：（1）Hansen E W,Redford K.Nuclear Magnetic Resonance Spectroscopy of Polypropylene Homopolymers.In:Karger-Kocsis J,ed.Polypropylene:A-Z Reference.Dordrecht:Kluwer Publishers,1999：540-544；（2）Zambelli A, Macromelecules Vol8, No5,1975：687-688.

3rd, propylene 2,1 is inserted and 1,3 insert the measure of caused position heterogeneous structure content：

Pass through¹³C-NMR analyzes and calculates according to the following formula the content of " 2,1 " insertion and " 1,3 " insertion：

α α, α β, α δ represent three kinds of locus of different carbon atoms caused by different inserted modes, and carbon atom is α α When represent that inserted mode is normal " head-tail " mode, be " 2,1 " insertion when carbon atom is α β, carbon atom for α δ when be " 1,3 " insert.

¹³The experimental condition of C-NMR is identical with 2, and the fixed sum data of recognizing of spectral peak is processed referring in particular to bibliography：（1） Grassi A, Zambelli A.Macromolecules, 1988,21：617-622；（2）Tsutsui T, Ishimaru N, Mizuno A, et al.Polymer, 1989,30：1350-1356.

4th, the measure of TREF analytic types solubles content：Carried out using the TREF-300 type analysis instrument of Poly CHAR companies Determine, specific method is as follows：Weigh trichloro-benzenes of the 80mg samples 40mL added with 0.3 weight %BHT（TCB）Solvent is at 150 DEG C Dissolving 60min, makes sample fully dissolve to form homogeneous solution；Take the above-mentioned solution of 20mL and enter post, be cooled to 0.2 DEG C/min speed 35 DEG C, sample is gradually crystallized precipitation according to crystallizing power size in temperature-fall period and be deposited on post；The stabilization at 35 DEG C Being warming up to 140 DEG C with 1.0 DEG C/min again after 10min carries out drip washing.The flow velocity of solvent pump is controlled in drip washing for 0.5mL/min, it is molten Solution sample constantly drenches by solvent, records the relation for drenching thing and temperature of sample.It is designated as drenching thing percentage composition at 35 DEG C TREF analytic type solubles contents.

5th, the measure of crystallization temperature Tc：The DIAMOND types DSC produced using PE companies is measured, wherein, with indium metal Instrument is corrected with zinc standard specimen, sample quality is about 5mg, atmosphere is nitrogen, and throughput is 20mL/min.By sample with 10 DEG C/speed of min is warming up to 210 DEG C and constant temperature 5min to eliminate thermal history, is then cooled to 50 with the speed of 10 DEG C/min again DEG C, crystallization exotherm is recorded, the corresponding temperature of the peak value of crystallization exotherm is designated as crystallization temperature Tc.

6th, xylene soluble content is measured according to method specified in ASTM D5492-98.

7th, melt mass flow rate MFR is measured according to method specified in ISO1133, wherein, test temperature is 230 DEG C, load is 2.16kg.

8th, the titanium atom content in solids containing titanium catalytic component and Ziegler-Natta catalyst is using being purchased from An He alliances 721 spectrophotometers of (Tianjin) development in science and technology Co., Ltd are measured.Alkoxyl magnesium compound and Ziegler-Natta are urged The particle diameter and particle diameter distribution index of agent are surveyed using the laser particle analyzers of Malvern Mastersizer TM 2000 It is fixed, wherein, using n-hexane as dispersant, particle diameter distribution index SPAN=（D90-D10）/D50.In alkoxyl magnesium compound M values measure：0.1 gram of alkoxyl magnesium compound is taken, it is 1.2mol/L aqueous hydrochloric acid solutions to add 10mL concentration, is shaken 24 hours Decompose it, using gas chromatograph（Purchased from Alan Analytical Instrument Co., Ltd, model GC-7960）To ethanol therein and 2-Ethylhexyl Alcohol content is measured and is calculated as follows m values：

Wherein, w1 is 2-Ethylhexyl Alcohol quality, and w2 is ethanol quality.

The content of internal electron donor is surveyed using Waters 600E liquid chromatographs in Ziegler-Natta catalyst It is fixed.

9th, the cross-breaking strength of the low smell non-woven fabrics of antibacterial, longitudinal fracture intensity, transverse breakage elongation and longitudinal direction are disconnected Elongation is split according to GB/T3923.1《Textile fabric tensile property part 1:The measure bar of ultimate strength and elongation at break Sample method》Specified in method be measured.

10th, the fracture strength of the low smell superfine Denier fibre of antibacterial, fracture strength CV values, transverse breakage elongation and fracture is stretched Rate CV values long are according to FZ/T54008《Polypropylene fibre drafting silk》Specified in method be measured.

11st, smell is measured according to method specified in SMC 30156-2007, specifically, takes the low smell of 50g antibacterials Non-woven fabrics or the low smell superfine Denier fibre of antibacterial are put into 1L containers, and smell is judged after being placed 120 minutes at 80 DEG C. Smell judgment criteria is divided into 6 grades：1 grade：It is difficult to feel；2 grades：Can feel, but not be pungent；3 grades：Can be clearly felt that, but It is not pungent；4 grades：It is pungent；5 grades：It is pungent very much；6 grades：Can not stand.

12nd, the anti-microbial property of the low smell non-woven fabrics of antibacterial is tested according to AATCC100-2004 standards, wherein, detection It is Escherichia coli with bacterium（Escherichia coli）ATCC 25922 and Staphylococcus aureus（Staphylococcus aureus）ATCC 6538.

13rd, the anti-microbial property of the low smell superfine Denier fibre of antibacterial according to ASTM E 2149-2010 under the conditions of dynamic Contact The standard test method of fixed antibacterial antiplaque agent determination of activity is tested, wherein, bacterium Escherichia coli are used in detection （Escherichia coli）ATCC 25922 and Staphylococcus aureus（Staphylococcus aureus）ATCC 6538.

Preparation example 1

The preparation example is used to illustrate polypropylene of present invention offer and preparation method thereof.

The preparation of A, solids containing titanium catalytic component：After the 16L voltage-resistant reactors with agitator being sufficiently displaced from nitrogen, Then toward adding 10L ethanol, the 2-Ethylhexyl Alcohol of 300mL, 11.2g iodine, 8g magnesium chlorides and 640g magnesium powders in reactor and stir It is well mixed, system is warming up to 75 DEG C of back flow reactions while stirring, reaction is stopped untill being discharged there is no hydrogen. The product that will be obtained is washed with 3L ethanol, filtered, dried, and obtains dialkoxy magnesium, and its average grain diameter D50 is 30.2 μm, Particle diameter distribution index SPAN is 0.015 for 0.81, m.Take the above-mentioned dialkoxy magnesium of 650g, 3250mL toluene, the 2- isopropyls of 65mL Base -2- isopentyl -1,3- dimethoxy propanes are configured to suspension.The pressure-resistant reactions of 16L of displacement are being repeated by high pure nitrogen In kettle, 2600mL toluene and 3900mL titanium tetrachlorides are added, are warming up to 80 DEG C, the suspension that then will be prepared is added in kettle, Constant temperature 1 hour at 80 DEG C, adds 2- isopropyl -2- isopentyl -1 of 65mL, and 3- dimethoxy propanes are to slowly warm up to 110 DEG C, then constant temperature 2 hours, press filtration obtains solid product.Above-mentioned solid product is added into 5070mL toluene and 3380mL titanium tetrachlorides Mixed liquor in, and in 110 DEG C of stir process 1 hour, so repeat treatment 3 times, press filtration, and the solid product that will be obtained uses oneself Alkane（By dewater treatment）Washing 4 times, each consumption is 600mL, and press filtration, drying obtain final product solids containing titanium catalytic component.Its In, the content of titanium atom is 4.1 weight %, 2- isopropyl -2- isopentyl -1, and the content of 3- dimethoxy propanes is 11.9 weights Amount %.

B, polyplant：

Device uses continuous autoclave pre-polymerization and horizontal retort gas phase series polymerizations technique.Prepolymerization reactor is jacketed cooling Vertical mixing Fu, volume is 5 liters, and stirrer paddle is the oblique oar of turbine type, and mixing speed is 500 revs/min；Horizontal Gas-phase reactor It is Horizontal stirring Fu, volume is 0.2 cubic metre, and agitating paddle is T-shaped oblique blade, and angle of inclination is 10 degree, and mixing speed is 100 Rev/min.

C, polymerizing condition：

The（1）Step prepolymerization：Reaction pressure is 2.5MPa, and reaction temperature is 10 DEG C, and the reaction time is 12 minutes；Titaniferous is consolidated Body catalyst component and triethyl aluminum inlet amount are respectively 0.4 Grams Per Hour and 0.058 mol/hr, and propylene feed amount is 10 public Jin/hour, obtain the propylene pre-polymer that pre-polymerization multiple is 100 grams of polymer/gram catalyst；

The（2）Step gas-phase polymerization：Reaction temperature is 98 DEG C, and reaction pressure is 2.3MPa, and the reaction time is 60 minutes, will be walked Suddenly（1）The propylene pre-polymer for obtaining continuously is passed through in Horizontal stirring Fu, while the inlet amount for controlling propylene is 30 kgs/hour, And hydrogen/propylene molar ratio is 0.001 in making reaction gas phase.

48 hours long run tests are carried out according to above-mentioned condition, device stable operation, the polypropylene PP-1 that will be obtained is carried out Analysis test, acquired results are as shown in table 1.

Preparation example 2

The preparation of A, solids containing titanium catalytic component：（With preparation example 1）；

B, polyplant：（With preparation example 1）；

C, polymerizing condition：

The（2）Step gas-phase polymerization：Reaction temperature is 91 DEG C, and reaction pressure is 2.3MPa, and the reaction time is 60 minutes, will be walked Suddenly（1）The propylene pre-polymer for obtaining continuously is passed through in Horizontal stirring Fu, while the inlet amount for controlling propylene is 30 kgs/hour, And hydrogen/propylene molar ratio is 0.001 in making reaction gas phase.

48 hours long run tests are carried out according to above-mentioned condition, device stable operation, the polypropylene PP-2 that will be obtained is carried out Analysis test, acquired results are as shown in table 1.

Preparation example 3

B, polyplant：（With preparation example 1）；

C, polymerizing condition：

The（1）Step prepolymerization：Reaction pressure is 2.5MPa, and reaction temperature is 10 DEG C, and the reaction time is 12 minutes；Titaniferous is consolidated Body catalyst component, triethyl aluminum and dicyclopentyl dimethoxyl silane（DCPDMS, is commonly called as D-Donor）Inlet amount is respectively 1.1 Grams Per Hours, 0.051 mol/hr and 0.0082 mol/hr, Al/Si mol ratios are 6.2, and propylene feed amount is 10 public Jin/hour, obtain the propylene pre-polymer that pre-polymerization multiple is 150 grams of polymer/gram catalyst；

The（2）Step gas-phase polymerization：Reaction temperature is 98 DEG C, and reaction pressure is 2.3MPa, and the reaction time is 60 minutes, will be walked Suddenly（1）The propylene pre-polymer for obtaining continuously is passed through in Horizontal stirring Fu, while the inlet amount for controlling propylene is 30 kgs/hour, And hydrogen/propylene molar ratio is 0.002 in making reaction gas phase.

48 hours long run tests are carried out according to above-mentioned condition, device stable operation, the polypropylene PP-3 that will be obtained is carried out Analysis test, acquired results are as shown in table 1.

Preparation example 4

B, polyplant：（With preparation example 1）；

C, polymerizing condition：

The（1）Step prepolymerization：Reaction pressure is 2.5MPa, and reaction temperature is 10 DEG C, and the reaction time is 12 minutes；Titaniferous is consolidated Body catalyst component, triethyl aluminum and second, isobutyl dimethoxy silane（DIBDMS, is commonly called as B-Donor）Inlet amount is respectively 1.0 Grams Per Hours, 0.054 mol/hr and 0.0087 mol/hr, Al/Si mol ratios are 6.2, and propylene feed amount is 10 public Jin/hour, obtain the propylene pre-polymer that pre-polymerization multiple is 200 grams of polymer/gram catalyst；

The（2）Step gas-phase polymerization：Reaction temperature is 91 DEG C, and reaction pressure is 2.3MPa, and the reaction time is 60 minutes, will be walked Suddenly（1）The propylene pre-polymer for obtaining continuously is passed through in Horizontal stirring Fu, while the inlet amount for controlling propylene is 30 kgs/hour, And hydrogen/propylene molar ratio is 0.003 in making reaction gas phase.

48 hours long run tests are carried out according to above-mentioned condition, device stable operation, the polypropylene PP-4 that will be obtained is carried out Analysis test, acquired results are as shown in table 1.

Contrast preparation example 1

The contrast preparation example is used to illustrate polypropylene of reference and preparation method thereof.

Method according to preparation example 1 carries out polyacrylic preparation, unlike, in the polyacrylic preparation process, The（2）The reaction temperature of step is 66 DEG C, and makes hydrogen and the mol ratio of propylene in reaction gas phase be 0.004, obtains reference poly- third Alkene DPP-1.Wherein, the performance of reference polypropylene is as shown in table 1.

Contrast preparation example 2

Method according to preparation example 3 carries out polypropylene, unlike, in the polyacrylic preparation process, the（2）Step Reaction temperature be 66 DEG C, and make hydrogen and the mol ratio of propylene in reaction gas phase be 0.01, obtain reference polypropylene DPP-2. Wherein, the performance of reference polypropylene is as shown in table 1.

Contrast preparation example 3

B, polyplant：（With preparation example 1）；

C, polymerizing condition：

Polypropylene is added directly into horizontal agitated vessel without prepolymerization.Polymeric reaction temperature is 98 DEG C, reaction pressure It is 2.3MPa, the reaction time is 60 minutes, and solids containing titanium catalytic component and triethyl aluminum inlet amount are respectively 0.4 Grams Per Hour With 0.058 mol/hr, the inlet amount of propylene is 30 kgs/hour, and hydrogen/propylene molar ratio is in making reaction gas phase 0.005。

48 hours long run tests are carried out according to above-mentioned condition, has as a result been found, polymer active is too low, it is impossible to obtained poly- third Alkene, acquired results are as shown in table 1.

Contrast preparation example 4

The contrast preparation example is used to illustrate the polypropylene of reference.

Reference polypropylene DPP-3 in the contrast preparation example is prepared by population in Zhenhai Refine-Chemical Company using peroxide degradation, board Number it is H30S, the performance of the reference polypropylene is as shown in table 1.

Preparation example 5

The preparation example is used to illustrate complex antimicrobials of present invention offer and preparation method thereof.

By powder styrene butadiene rubber（Average particulate diameter is 100nm, and gel content is 88.9 weight %, sinopec Beijing chemical industry Research institute produces, trade name Narpow, trade mark VP101）Ag antiseptics are carried with basic zirconium phosphate（Synthesize Co., Ltd purchased from East Asia, 1 μm of AG300, D90 ＜, similarly hereinafter）In mass ratio it is 1:5 are well mixed, and obtain complex antimicrobials 1#.

Preparation example 6

By powder ethene-vinyl acetate rubber（Average particulate diameter is 200nm, and gel content is 80 weight %, petrochemical industry north Capital chemical research institute produces, trade name Narpow, trade mark VP801）Ag-Zn antiseptics are carried with basic zirconium phosphate（Received purchased from Shanghai profit river Rice Materials Co., Ltd, 2 μm of RHA-1F, D90 ＜, similarly hereinafter）In mass ratio it is 1:3 are well mixed, and obtain complex antimicrobials 2#.

Preparation example 7

By powder ethene-vinyl acetate rubber（Average particulate diameter is 300nm, and gel content is 90 weight %, sinopec Beijing Chemical Research Institute produces, trade name Narpow, trade mark VP801）It is 5 to carry Ag antiseptics with basic zirconium phosphate in mass ratio:1 mixing Uniformly, complex antimicrobials 3# is obtained.

Preparation example 8

By powder styrene butadiene rubber（Average particulate diameter is 200nm, and gel content is 75 weight %, and sinopec Beijing chemical industry grinds Study carefully institute's production, trade name Narpow, trade mark VP101）With poly (hexamethylene) hydrochloride（Purchased from the Shanghai polymerization limited public affairs of industry high Department, F1000, similarly hereinafter）In mass ratio it is 10:1 is well mixed, and obtains complex antimicrobials 4#.

Preparation example 9

By powder styrene butadiene rubber（Average particulate diameter is 200nm, and gel content is 85 weight %, and sinopec Beijing chemical industry grinds Study carefully institute's production, trade name Narpow, trade mark VP101）Ag antiseptics are carried with basic zirconium phosphate and poly (hexamethylene) hydrochloride presses quality Than being 10:1:0.1 is well mixed, and obtains complex antimicrobials 5#.

Preparation example 10

By powder ethene-vinyl acetate rubber（Average particulate diameter is 300nm, and gel content is 90 weight %, sinopec Beijing Chemical Research Institute produces, trade name Narpow, trade mark VP801）Ag-Zn antiseptics and polyhexamethylene guanide are carried with basic zirconium phosphate Hydrochloride is 1 in mass ratio:5:5 are well mixed, and obtain complex antimicrobials 6#.

Preparation example 11

By powder ethene-vinyl acetate rubber（Average particulate diameter is 500nm, and gel content is 80 weight %, sinopec Beijing Chemical Research Institute produces, trade name Narpow, trade mark VP801）Ag antiseptics are carried with basic zirconium phosphate（Synthesize limited purchased from East Asia Company, 1 μm of AG300, D90 ＜）And poly (hexamethylene) hydrochloride（Purchased from Shaanxi Dasheng Pharmaceutical Tech Co., Ltd., PHMB）Press Mass ratio is 1:1:1 is well mixed, and obtains complex antimicrobials 7#.

Preparation example 12

The preparation is used to illustrate processing aid of present invention offer and preparation method thereof.

By silicon rubber（Average particulate diameter is 100nm, and gel content is 80 weight %, the life of sinopec Beijing Chemical Research Institute Produce, trade name Narpow, trade mark VP601）With polyethylene glycol（Purchased from LG-DOW company, PEG6000）By weight it is 10:1 It is well mixed, obtain processing aid 1#.

Preparation example 13

By silicon rubber（Average particulate diameter is 200nm, and gel content is 90 weight %, the life of sinopec Beijing Chemical Research Institute Produce, trade name Narpow, trade mark VP601）With polyethylene glycol（Purchased from LG-DOW company, PEG8000）By weight it is 4:1 mixes Close uniform, obtain processing aid 2#.

Preparation example 14

By silicon rubber（Average particulate diameter is 300nm, and gel content is 75 weight %, the life of sinopec Beijing Chemical Research Institute Produce, trade name Narpow, trade mark VP601）With polyethylene glycol（Purchased from LG-DOW company, PEG10000）By weight it is 2:1 It is well mixed, obtain processing aid 3#.

Preparation example 15

By silicon rubber（Average particulate diameter is 500nm, and gel content is 80 weight %, the life of sinopec Beijing Chemical Research Institute Produce, trade name Narpow, trade mark VP601）With polyethylene glycol（Purchased from LG-DOW company, PEG10000）By weight it is 1:1 It is well mixed, obtain processing aid 4#.

Embodiment 1-13

Embodiment 1-13 is used to illustrate the low smell non-woven fabrics of antibacterial and the low smell superfine Denier fibre of antibacterial of present invention offer And preparation method thereof.

（1）The preparation of polypropylene granules：

Polypropylene is added with antiseptic, dispersant, antioxidant and processing aid and is well mixed in high speed agitator, then will The material for mixing is added in the feeder of WP25 double screw extruders, and material enters in twin-screw via feeder, through screw rod Melting mixing is uniform, extruding pelletization, drying.The temperature of screw rod is maintained between 170-230 DEG C in process, is finally given poly- Propylene pellet L1-L13.Wherein, species of the polypropylene with antiseptic, dispersant, antioxidant and processing aid and the consumption such as institute of table 2 Show, it is by weight 1 that antioxidant is antioxidant 1010 with irgasfos 168:2 composite antioxidants being mixed to get.

（2）The low smell non-woven fabrics of antibacterial：

Non-woven fabrics is manufactured with Reifenhauser Nonwovens of spunbond production line, polypropylene granules L1-L13 is added into single spiral shell respectively In bar extruder, extruder temperature is between 180-230 DEG C, by extrusion, air-flow stretching, cooling and solidifying, waits into net and reinforcing Journey, obtains grammes per square metre for 50g/m²The low smell non-woven fabrics W1-13 of antibacterial, its antibiotic rate, smell and the mechanical property such as institute of table 3 Show.

（3）The low smell superfine Denier fibre of antibacterial：

Respectively with polypropylene granules L1-L13 as raw material, the beautiful machine textile manufacturing line production low smell super fine denier of antibacterial processed in Fiber, wherein, process conditions include：Spinning temperature is 250-300 DEG C, and it is 3000m/min to spin speed, is led again as 2.3 times, is advised Lattice are the low smell superfine Denier fibre FDY1-13 of antibacterial of 48dtex/96F, its antibiotic rate, smell and the mechanical property such as institute of table 4 Show.

Comparative example 1-5

Comparative example 1-5 is used to illustrate the low smell non-woven fabrics of reference antibacterial and the low smell superfine Denier fibre of antibacterial and its preparation side Method.

Method according to embodiment 1-13 prepares the low smell non-woven fabrics of antibacterial and the low smell superfine Denier fibre of antibacterial, different It is that the species and consumption of the polypropylene, antiseptic, dispersant, antioxidant and processing aid as shown in table 2, obtain reference and resist The low smell non-woven fabrics DW1-DW5 of the bacterium and low smell superfine Denier fibre DFDY1-5 of reference antibacterial.The low smell non-woven fabrics of reference antibacterial The antibiotic rate of DW1-DW5, smell and mechanical property are as shown in table 3.The low smell superfine Denier fibre DFDY1-5's of reference antibacterial is anti- Bacterium rate, smell and mechanical property are as shown in table 4.

Table 2

Table 3

Table 4

As can be seen from the above results, the polypropene composition and polypropylene material not only have excellent anti-microbial property With reduce smell, also with mechanical property higher.

The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned implementation method Detail, in range of the technology design of the invention, various simple variants can be carried out to technical scheme, this A little simple variants belong to protection scope of the present invention.

It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can The combination of energy is no longer separately illustrated.

Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally The thought of invention, it should equally be considered as content disclosed in this invention.

Claims

1. a kind of polypropene composition, it is characterised in that the polypropene composition contains polypropylene and antiseptic；Described poly- third The molecular weight distributing index of alkene is 2.5-5.5, the macromolecule hangover indices P I in molecular weight distribution width_HTMore than 1.9；It is described poly- Propylene does not contain the insertion of propylene 2,1 and the caused position heterogeneous structure of 1,3 insertions；

Wherein, the polypropylene is prepared by the method for comprising the following steps：

(1) in the presence of Ziegler-Natta catalyst, propylene is carried out into prepolymerization under -10 DEG C to 50 DEG C, 0.1-100MPa, It is the 2-3000 grams of propylene pre-polymer of polymer/gram catalyst to obtain pre-polymerization multiple；

(2) under 91-150 DEG C, 1-6MPa, the propylene pre-polymer and propylene are polymerized；

The macromolecule hangover indices P I_HTIt is calculated as follows：PI_HT=10⁵× (Mz/Mp)/Mw, wherein, Mp is peak Position molecular weight, Mw is weight average molecular weight, and Mz is Z-average molecular weight, and unit is g/mol.

2. polypropene composition according to claim 1, wherein, in the presence of Ziegler-Natta catalyst, by propylene Prepolymerization is carried out under -10 DEG C to 50 DEG C, 0.1-100MPa, it is 3-2000 grams of polymer/gram catalyst to obtain pre-polymerization multiple Propylene pre-polymer.

3. polypropene composition according to claim 2, wherein, in the presence of Ziegler-Natta catalyst, by propylene Prepolymerization is carried out under -10 DEG C to 50 DEG C, 0.1-100MPa, it is 50-300 grams of polymer/gram catalyst to obtain pre-polymerization multiple Propylene pre-polymer.

4. polypropene composition according to claim 1, wherein, the unit group [mmmm] of the polyacrylic isotaxy five Content be more than 85%.

5. polypropene composition according to claim 4, wherein, the unit group [mmmm] of the polyacrylic isotaxy five Content be more than 90%.

6. polypropene composition according to claim 5, wherein, the unit group [mmmm] of the polyacrylic isotaxy five Content be more than 93%.

7. the polypropene composition according to any one in claim 1-6, wherein, the polyacrylic crystallization temperature Tc More than 115 DEG C.

8. polypropene composition according to claim 7, wherein, the polyacrylic crystallization temperature Tc is more than 120 DEG C.

9. the polypropene composition according to any one in claim 1-6, wherein, xylene soluble in the polypropylene The content of thing is less than 4.4 weight %.

10. polypropene composition according to claim 9, wherein, the content of xylene soluble part is small in the polypropylene In 2.3 weight %.

11. polypropene compositions according to claim 10, wherein, the content of xylene soluble part is small in the polypropylene In 1.6 weight %.

12. polypropene composition according to any one in claim 1-6, wherein, the polypropylene at 230 DEG C, Melt mass flow rate MFR under the effect of 2.16kg load is 0.01-1000g/10min.

13. polypropene compositions according to claim 12, wherein, the polypropylene is at 230 DEG C, 2.16kg load is made Melt mass flow rate MFR under is 1-1000g/10min.

14. polypropene compositions according to claim 13, wherein, the polypropylene is at 230 DEG C, 2.16kg load is made Melt mass flow rate MFR under is 1-399g/10min.

15. polypropene compositions according to claim 14, wherein, the polypropylene is at 230 DEG C, 2.16kg load is made Melt mass flow rate MFR under is 10-100g/10min.

16. polypropene compositions according to claim 1, wherein, on the basis of the polypropylene of 100 weight portions, institute The consumption for stating antiseptic is 0.1-10 weight portions.

17. polypropene compositions according to claim 16, wherein, on the basis of the polypropylene of 100 weight portions, institute The consumption for stating antiseptic is 0.3-3 weight portions.

18. polypropene composition according to claim 1,16 or 17, wherein, the antiseptic be inorganic antiseptic and/ Or organic antibacterial agent.

19. polypropene compositions according to claim 18, wherein, the inorganic antiseptic is with Ag⁺Ion is activearm Part Ag series antibacterial agents, with Zn²⁺For the Zn series antibacterial agents of active constituent and simultaneously with Ag⁺And Zn²⁺It is the Ag-Zn systems of active constituent One or more in antiseptic.

20. polypropene compositions according to claim 18, wherein, the organic antibacterial agent is probenazole, Bravo, many It is bacterium spirit, ZPT, Kathon, DCOIT, poly- The chloro- 2'- dihydroxy diphenyl ethers of hexa-methylene guanidine hydrochloride, hexamethylene, 2,4,4'- tri-, o-phenyl phenol, One kind in 10,10'- oxygen connection phenoxarsine, normal-butyl BIT and IPBC or It is various.

21. polypropene compositions according to claim 18, wherein, the particle diameter of the inorganic antiseptic is 10nm-20 μm.

22. polypropene compositions according to claim 21, wherein, the particle diameter of the inorganic antiseptic is 10nm-2 μm.

23. polypropene compositions according to claim 18, wherein, the antiseptic is anti-with inorganic containing powdered rubber The complex antimicrobials of microbial inoculum and/or organic antibacterial agent.

24. polypropene compositions according to claim 23, wherein, the consumption of the powdered rubber and inorganic antiseptic and The weight ratio of total consumption of organic antibacterial agent is 0.1-10:1.

25. polypropene compositions according to claim 24, wherein, the consumption of the powdered rubber and inorganic antiseptic and The weight ratio of total consumption of organic antibacterial agent is 0.2-5:1.

26. polypropene compositions according to claim 23, wherein, the antiseptic is to contain the powdered rubber, phosphorus Sour zirconium carries Ag antiseptics and/or basic zirconium phosphate carries Ag-Zn antiseptics and poly (hexamethylene) hydrochloride and/or polyhexamethylene is double The complex antimicrobials of guanidine hydrochloride.

27. polypropene compositions according to claim 26, wherein, the basic zirconium phosphate carries Ag antiseptics and basic zirconium phosphate is carried Total consumption of Ag-Zn antiseptics and the poly (hexamethylene) hydrochloride and the weight of total consumption of hexamethylene Amount is than being 0.1-10:1.

28. polypropene compositions according to claim 27, wherein, the basic zirconium phosphate carries Ag antiseptics and basic zirconium phosphate is carried Total consumption of Ag-Zn antiseptics and the poly (hexamethylene) hydrochloride and the weight of total consumption of hexamethylene Amount is than being 1-10:1.

29. polypropene composition according to any one in claim 23-28, wherein, the powdered rubber is powder Ethene-vinyl acetate rubber and/or powder styrene butadiene rubber.

30. polypropene compositions according to claim 29, wherein, the average particulate diameter of the powdered rubber is 100- 500nm, gel phase content is more than 75 weight %.

31. polypropene compositions according to claim 1, wherein, the polypropene composition also contains dispersant, antioxygen One or more in agent, acid-acceptor and processing aid.

32. polypropene compositions according to claim 31, wherein, on the basis of the polypropylene of 100 weight portions, institute The consumption of dispersant is stated for 0.1-0.3 weight portions, the consumption of the antioxidant is 0.1-0.3 weight portions, the use of the acid-acceptor It is 0.03-0.1 weight portions to measure, and the consumption of the processing aid is 0.05-1 weight portions.

33. polypropene compositions according to claim 31, wherein, the processing aid is containing silicon rubber powder and gathers The silicon rubber powder of ethylene glycol-polyethylene glycol processing aid.

34. polypropene compositions according to claim 33, wherein, the weight ratio of the silicon rubber powder and polyethylene glycol It is 0.1-10:1.

The polypropylene material that the 35. polypropene composition melting extrusion shaping as described in any one in claim 1-34 is obtained Material.

Polypropene composition in 36. claim 1-34 described in any one or the polypropylene material described in claim 35 are used In the application for preparing non-woven fabrics or polypropylene fiber.