CN106188908A - CPE PVC cross-linking radiation sheath sizing material and preparation method thereof - Google Patents
CPE PVC cross-linking radiation sheath sizing material and preparation method thereof Download PDFInfo
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- CN106188908A CN106188908A CN201610523625.5A CN201610523625A CN106188908A CN 106188908 A CN106188908 A CN 106188908A CN 201610523625 A CN201610523625 A CN 201610523625A CN 106188908 A CN106188908 A CN 106188908A
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000004513 sizing Methods 0.000 title claims abstract description 31
- 238000004132 cross linking Methods 0.000 title claims abstract description 16
- 230000005855 radiation Effects 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 10
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 10
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 10
- 239000000693 micelle Substances 0.000 claims abstract description 10
- 229910000410 antimony oxide Inorganic materials 0.000 claims abstract description 9
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000004902 Softening Agent Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 6
- BJAJDJDODCWPNS-UHFFFAOYSA-N dotp Chemical compound O=C1N2CCOC2=NC2=C1SC=C2 BJAJDJDODCWPNS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052740 iodine Inorganic materials 0.000 claims description 6
- 239000011630 iodine Substances 0.000 claims description 6
- -1 pentaerythritol ester Chemical class 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 3
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 3
- DUWWHGPELOTTOE-UHFFFAOYSA-N n-(5-chloro-2,4-dimethoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC(OC)=C(NC(=O)CC(C)=O)C=C1Cl DUWWHGPELOTTOE-UHFFFAOYSA-N 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 235000019241 carbon black Nutrition 0.000 abstract 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical group CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
- C08L23/286—Chlorinated polyethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of CPE PVC cross-linking radiation sheath sizing material, described sheath sizing material includes the raw material of following weight portion: 100 parts of CPE, 40～60 parts of PVC micelles, 50～80 parts of Pulvis Talci, 10～30 parts of magnesium hydroxide, 1～3 part of antimony oxide, 15～35 parts of white carbon blacks, 20～40 parts of plasticizers, 3～15 parts of sensitizers；Described PVC micelle includes the raw material of following weight portion: 100 parts of PVC, 30～50 parts of ground calcium carbonate, 20～40 parts of calcenes, 1～2 part of antimony oxide, 2～4 parts of stabilizers, 50～80 parts of plasticizers.The invention also discloses the preparation method of sheath sizing material.Production efficiency of the present invention is high, pollution-free, and PVC is first made with other raw materials and mixes with CPE after PVC micelle again by low energy consumption, and gained sizing material has more preferable mechanical performance after making flexible cord sheath.
Description
Technical field
The present invention relates to a kind of rubber sheath rubber material and preparation method thereof, be specifically related to a kind of rubber and plastic blend is modified
Rubber sheath rubber material by cross-linking radiation and preparation method thereof.
Background technology
Traditional rubber wire cable produces many employing high-temperature steam sulfuration process, and this needs burning boiler to provide 200 DEG C of left sides
Right high-temperature steam, energy consumption is big, and production cost is high, and the management and control of Environmental protection in recent years is increasingly strict, to factory's pot
Stove has controlled.Under this background, electron accelerator irradiation processing application in electric wire product is paid attention to day by day,
Present good growth momentum.Different from tradition crosslinking method, it is without boiler high temperature steam, and production efficiency is high, more environmentally friendly.Closely
Coming along with electron accelerator is in the application of China's line cable industry, existing many plastic ca-ble (particularly electric wire) use electronics to penetrate
Line irradiation cross-links, but the producer that rubber cable uses irradiation processing to produce at present is less, CPE (chlorinated polyethylene) and PVC
(polrvinyl chloride) is blended cross-linking radiation and yet there are no report.
National standard medium-sized rubber sleeve flexible cable YZW power line, is mainly used in 300/500V and following household electrical appliance, electronic
Instrument and all kinds of mobile appliance equipment.Sheath requires preferable heat-proof aging, fire-retardant, oil resistant, cryogenic property, cable national standard
5013 1998 have concrete regulation.General many employing rubber-type high temperature vulcanized production of CPE steam.
In sum, need to design and develop the sheath sizing compound formula of applicable cross-linking radiation.
Summary of the invention
It is an object of the invention to provide the CPE-PVC cross-linking radiation sheath sizing material that a kind of various aspects of performance is excellent.
It is a further object of the present invention to provide the preparation method of this sheath sizing material.
For reaching one of above-mentioned purpose, the present invention by the following technical solutions:
CPE-PVC cross-linking radiation sheath sizing material, described sheath sizing material includes the raw material of following weight portion:
Further, described PVC micelle includes the raw material of following weight portion:
Further, described ground calcium carbonate is 2500 mesh, and particle diameter 50% is distributed in 1～5 μm, and pH value is 8.0～10.0
Ground calcium carbonate.
Further, described calcene is content >=98%, pH value (10% suspension) 8.0～10.0, lives
Rate >=90%, 45 μm testing sieve≤0.30%, the calcene of 125 μm testing sieve≤0.005%.
Further, described stabilizer is calcium zinc class stabilizer.
Further, described plasticizer is content >=99.8%, the DOTP of flash-point >=210 DEG C.
Further, described CPE be chlorinity be 35%, Mooney viscosity ML(1+4)125 DEG C be 70～80 rubber-type CPE.
Further, described Pulvis Talci is 1500 mesh, and particle diameter 50% is distributed in 7～10 μm, hydrochloric acid insoluble substance >=85%, oxygen
Change the Pulvis Talci of content of magnesium >=30%.
Further, described magnesium hydroxide is content >=93%, particle diameter distribution D50The magnesium hydroxide of≤5 μm.
Further, described white carbon black is the N660 white carbon black of iodine absorption value 36 ± 4g/kg.
Further, described plasticizer is content >=99.8%, the DOTP of flash-point >=210 DEG C.Enter one
Step ground, described sensitizer is trimethylol-propane trimethacrylate.
Further, sheath sizing material also includes the raw material of following weight portion:
Age resistor 0.5～1.5 parts
Acid-acceptor 3～10 parts
Softening agent 1～5 parts.
Further, described age resistor be four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, 4,
4 '-bis-(alpha, alpha-dimethylbenzyl) diphenylamines or 2,2,4-trimethyl-1,2-dihyaroquinoline polymer.
Further, described acid-acceptor is the middle extra light calcined magnesia that iodine absorption value is more than 80.
Further, described softening agent is paraffin.
A kind of method preparing above-mentioned sheath sizing material, comprises the following steps:
S1, by PVC, ground calcium carbonate, calcene, antimony oxide, stabilizer, plasticizer mixing, through stirring
Mix, extrude, cause particle stand-by；
S2, by CPE, PVC micelle, Pulvis Talci, magnesium hydroxide, antimony oxide, white carbon black, plasticizer, sensitizer through mixing,
Sheath sizing material is obtained after extrusion.
Sheath sizing material extrudes YZW power line sheath according to outer line-outgoing equipment, adds through electron accelerator irradiation crosslinking after molding
Work, obtains YZW flexible cord sheath.
The present invention is by sheath sizing compound formula reasonable in design, and, mixer mixing mixing through high-speed kneading machine, mill mix
Through cold feeding rubber extruding machine extrusion molding after refining, rolling page, then by suitable dose cross-linking radiation, products obtained therefrom need to meet GB5013
1998 standard-requireds, have the advantages that
1, energy-conserving and environment-protective, it is not necessary to burning boiler, pollution-free, low energy consumption, energy consumption is the 1/2～2/3 of vapor crosslinking.
2, production efficiency is high, extruded velocity per minute up to more than 100 meters to hundreds of numbers, be 3～5 times of vapor crosslinking.
3, production technology is simplified, it is easy to control, can be simple as producing PVC wire rod.
4, improve wire rod presentation quality, produce with the Rubber Extruder of draw ratio 14:1, the more smooth exquisiteness of outward appearance, alleviate
CPE wire surface viscosity.
5, cable anti-flammability is improved.
6, raw materials used cheap and easy to get, reduce formulation cost.
7, first being made with other raw materials by PVC and mix with CPE after PVC micelle again, gained sizing material has after making flexible cord sheath
There is more preferable mechanical performance.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further:
Embodiment 1～5
The raw material of sheath sizing material is (unit is weight portion):
Table 1
CPE used be chlorinity be 35%, Mooney viscosity ML(1+4)125 DEG C be 70～80 rubber-type CPE.
Pulvis Talci used is 1500 mesh, and particle diameter 50% is distributed in 7～10 μm, hydrochloric acid insoluble substance >=85%, content of magnesia
The Pulvis Talci of >=30%.
Magnesium hydroxide used is content >=93%, particle diameter distribution D50The magnesium hydroxide of≤5 μm.
White carbon black used is the N660 white carbon black of iodine absorption value 36 ± 4g/kg.
Plasticizer used is content >=99.8%, the DOTP of flash-point >=210 DEG C.
Sensitizer used is trimethylol-propane trimethacrylate.
Age resistor used by embodiment 1 is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, implements
Age resistor used by example 2 is 4,4 '-bis-(alpha, alpha-dimethylbenzyl) diphenylamines, age resistor used by embodiment 3 be 2,2,4-trimethyls-
1,2-dihyaroquinoline polymer.
Acid-acceptor used is the middle extra light calcined magnesia that iodine absorption value is more than 80.
Softening agent used is paraffin.
The raw material of PVC micelle consists of (unit is weight portion):
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| PVC(SG3) | 100 | 100 | 100 | 100 | 100 |
| Triple superphosphate | 40 | 30 | 50 | 45 | 35 |
| Activity fine particle calcium carbonate | 20 | 30 | 40 | 25 | 35 |
| Antimony oxide | 1.2 | 1 | 1.5 | 1.8 | 2 |
| Stabilizer | 3 | 2 | 4 | 3 | 3 |
| Plasticizer | 70 | 80 | 50 | 60 | 70 |
Ground calcium carbonate used is 2500 mesh, and particle diameter 50% is distributed in 1～5 μm, and pH value is the heavy carbonic acid of 8.0～10.0
Calcium.
Calcene used is content >=98%, pH value (10% suspension) 8.0～10.0, activation rate >=
90%, 45 μm testing sieve≤0.30%, the calcene of 125 μm testing sieve≤0.005%.
Stabilizer used is calcium zinc class stabilizer.
Plasticizer used is content >=99.8%, the DOTP of flash-point >=210 DEG C.
Prepare according to following steps:
1, according to table 2 formula, by PVC, ground calcium carbonate, calcene, antimony oxide, stabilizer, plasticising
Agent adds in high-speed kneading machine, high-speed stirred about 5 minutes, blowing when material temperature reaches 130 DEG C, extruding granulator after start the most at a slow speed
Feeding section temperature 120 DEG C, fuselage two district is 125～150 DEG C to four district's temperature, and head temperature 150 DEG C causes particle stand-by；
2, according to table 1 formula, raw material is put in banbury, after first adding half plasticizer mixing 2 minutes, add remainder
Plasticizer and sensitizer refine 4 minutes again, the most mixing uniform (about 5 minutes) after discharging, roll over page and go out film, film warp
Cold feed extruder (draw ratio 14:1, compression ratio 1.5:1) and outer line-outgoing equipment extrusion molding YZW 2*0.75mm2Power line protects
Set, carries out irradiation through electron accelerator 9MRad dosage (energy 1.5Mev) after molding, obtains YZW flexible cord sheath.The coldest feeding
Cross-head temperature is 100～110 DEG C, and fuselage one district temperature is 80～100 DEG C, and fuselage two district temperature is 90～110 DEG C.
Comparative example 1
Formula and step according to embodiment 1 are carried out, but PVC is formed without micelle, but are directly total to by PVC Yu CPE
Mixed.
Comparative example 2
Steam continuous method
By chlorinated polyethylene 100 parts, N660 white carbon black 23 parts, superfine talcum powder 75 parts, 25 parts of magnesium hydroxide, acid-acceptor aoxidizes
10 parts of magnesium, 0.5 part of age resistor, 1.5 parts of softening agent paraffin, after antimony oxide 1.6 parts joins mixer mixing 2 minutes, sweep
Material adds plasticizer, Triallyl isocyanurate 1.6 parts, then refine discharging in 4 minutes, then be cooled on a mill until 90 DEG C with
Under, return in banbury with peroxide vulcanizing agent dual-tert-butyl cumyl peroxide (BIPB) 2 parts mixing uniformly after, then
The enterprising one-step melting of mill, rolles over page and goes out film；The film produced extrudes YZW 2*0.75mm through cold feed extruder2Power supply
Line, through 200 DEG C of curing tubes, steam pressure 1.6MPa carries out vulcanization crosslinking: wherein cold feed extruder head temperature be 90～
100 DEG C, fuselage one district temperature is 60～80 DEG C, and fuselage two district temperature is 70～90 DEG C.
Performance test
The YZW flexible cord sheath of embodiment 1,2,4 and comparative example 1～2 is through performance test, and result is as shown in the table:
As seen from the above table, the YZW flexible cord sheath prepared with the irradiated crosslinking of sheath sizing compound formula of the present invention, with comparative example 2
Comparing, extruded velocity is fast, and production efficiency is high；Compared with comparative example 1, having more preferable mechanical performance, wire rod smooth in appearance is fine and smooth,
Properties is satisfied by GB5013 2008 standard-required.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Belong to those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all answer
Contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (10)
1.CPE-PVC cross-linking radiation sheath sizing material, it is characterised in that described sheath sizing material includes the raw material of following weight portion:
Sheath sizing material the most according to claim 1, it is characterised in that described PVC micelle includes the raw material of following weight portion:
Sheath sizing material the most according to claim 2, it is characterised in that described ground calcium carbonate is 2500 mesh, particle diameter 50%
Being distributed in 1～5 μm, pH value is the ground calcium carbonate of 8.0～10.0；Described calcene is content >=98%, pH value
(10% suspension) 8.0～10.0, activation rate >=90%, 45 μm testing sieve≤0.30%, 125 μm testing sieve≤0.005%
Calcene；Described stabilizer is calcium zinc class stabilizer；Described plasticizer is content >=99.8%, flash-point >=210 DEG C
DOTP.
Sheath sizing material the most according to claim 2, it is characterised in that described CPE be chlorinity be 35%, Mooney viscosity
ML(1+4)125 DEG C be 70～80 rubber-type CPE.
Sheath sizing material the most according to claim 2, it is characterised in that described Pulvis Talci is 1500 mesh, particle diameter 50% is distributed
At 7～10 μm, hydrochloric acid insoluble substance >=85%, the Pulvis Talci of content of magnesia >=30%.
Sheath sizing material the most according to claim 2, it is characterised in that described magnesium hydroxide is content >=93%, and particle diameter divides
Cloth D50The magnesium hydroxide of≤5 μm.
Sheath sizing material the most according to claim 2, it is characterised in that described white carbon black is the N660 of iodine absorption value 36 ± 4g/kg
White carbon black；Described plasticizer is content >=99.8%, the DOTP of flash-point >=210 DEG C；Described sensitizer is three hydroxyls
Trimethacrylate.
Sheath sizing material the most according to claim 2, it is characterised in that also include the raw material of following weight portion:
Age resistor 0.5～1.5 parts
Acid-acceptor 3～10 parts
Softening agent 1～5 parts.
Sheath sizing material the most according to claim 8, it is characterised in that described age resistor be four [β-(3,5-di-t-butyls-
4-hydroxy phenyl) propanoic acid] pentaerythritol ester, 4,4 '-bis-(alpha, alpha-dimethylbenzyl) diphenylamines or 2,2,4-trimethyl-1,2-bis-
Hydrogenated quinoline polymer；Described acid-acceptor is the middle extra light calcined magnesia that iodine absorption value is more than 80；Described softening agent is paraffin.
10. the method for the sheath sizing material prepared described in any one of claim 2～9, it is characterised in that include following step
Rapid:
S1, by PVC, ground calcium carbonate, calcene, antimony oxide, stabilizer, plasticizer mixing, agitated, squeeze
Go out, cause particle stand-by；
S2, by CPE, PVC micelle, Pulvis Talci, magnesium hydroxide, antimony oxide, white carbon black, plasticizer, sensitizer through mixing, extrusion
After obtain sheath sizing material.
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