CN107603208A - A kind of preparation method for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite - Google Patents
A kind of preparation method for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite Download PDFInfo
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- CN107603208A CN107603208A CN201710788182.7A CN201710788182A CN107603208A CN 107603208 A CN107603208 A CN 107603208A CN 201710788182 A CN201710788182 A CN 201710788182A CN 107603208 A CN107603208 A CN 107603208A
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- lorry
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 83
- 239000004677 Nylon Substances 0.000 title claims abstract description 47
- 229920001778 nylon Polymers 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000005299 abrasion Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000007822 coupling agent Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 15
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 14
- 238000005453 pelletization Methods 0.000 claims abstract description 13
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 22
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 15
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 14
- 229920002943 EPDM rubber Polymers 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- -1 N- (β-aminoethyl)-γ-aminopropyl Chemical group 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 6
- 238000011282 treatment Methods 0.000 claims description 6
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000002028 Biomass Substances 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 229920000578 graft copolymer Polymers 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 235000019260 propionic acid Nutrition 0.000 claims description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 2
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 5
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 claims 1
- VAJVDSVGBWFCLW-UHFFFAOYSA-N 3-Phenyl-1-propanol Chemical compound OCCCC1=CC=CC=C1 VAJVDSVGBWFCLW-UHFFFAOYSA-N 0.000 claims 1
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 claims 1
- KOEFSMLBFZGZLD-UHFFFAOYSA-L [bis(2-ethylhexoxy)-oxidophosphaniumyl] dihydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] phosphate ethane-1,2-diolate titanium(4+) Chemical compound [Ti+4].[O-]CC[O-].CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)(O)=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP([O-])([O-])=O KOEFSMLBFZGZLD-UHFFFAOYSA-L 0.000 claims 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 229920001112 grafted polyolefin Polymers 0.000 claims 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- LCGKKGWUTHIXIT-UHFFFAOYSA-N prop-1-ene triethoxysilane Chemical compound C=CC.C(C)O[SiH](OCC)OCC LCGKKGWUTHIXIT-UHFFFAOYSA-N 0.000 claims 1
- 229920002292 Nylon 6 Polymers 0.000 description 9
- 238000004945 emulsification Methods 0.000 description 4
- 238000009775 high-speed stirring Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- YTZKOQUCBOVLHL-UHFFFAOYSA-N tert-butylbenzene Chemical compound CC(C)(C)C1=CC=CC=C1 YTZKOQUCBOVLHL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000005447 octyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical class OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
It is used for the core plate of lorry abrasion disc preparation method of graphene/nylon activeness and quietness composite the invention discloses a kind of, comprises the following steps：(1) coupling agent decentralized processing graphene is used；(2) graphene after processing, nylon, heat stabilizer are added to banburying in banbury after high-speed mixer and mixing；(3) material of blending is divided into of uniform size granular or sheet material by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes, and is used as master batch；(4) master batch, nylon, heat stabilizer and toughener are added to extruding pelletization in double screw extruder after high-speed mixer and mixing and prepare graphene/nylon activeness and quietness composite.Composite prepared by the present invention has high intensity, excellent low-temperature flexibility, high-wearing feature, reduces the breakage rate of core plate of lorry abrasion disc, extends the service life of cartridge abrasion disc, improves the car body safety in operation of railway freight-car；Therefore, graphene/nylon activeness and quietness composite that prepared by the inventive method has wide market application foreground.
Description
Technical field
The present invention relates to polymer/inorganic compound High performance nanometer composite material field, specifically, with Haake banburying
Nylon and graphene and other auxiliary agents are carried out melt blending by machine and double screw extruder by means of mechanical external force, obtain a kind of stone
The preparation method of black alkene/nylon activeness and quietness composite.
Background technology
Though core plate of lorry abrasion disc nylon resin is with higher mechanical strength, self lubricity, heat resistance and resistance to
The excellent combination property such as chemical attack, but its shortcoming, such as it is hygroscopic, cause the strength of materials reduce and coefficient of friction increase and it is low
The shortcomings of warm degradation, constrains the service life of railway freight-car nylon cartridge abrasion disc.
Injection molding cartridge abrasion disc is one of important accessory of rail freight, and core plate of lorry abrasion disc is whole vehicle
Crucial bearing part, due to constantly being influenceed by alternate loads such as vertical, lateral, stretchings in running, can constantly produce
Raw friction.The frictional resistance of cartridge abrasion disc constrains car body lateral movement to a certain extent, thus can influence the operation of car body
Safety；In severe cold area, which there is damaged probability, in injection molding cartridge abrasion disc to greatly increase, and reduce making for cartridge abrasion disc
With the life-span, the frequency of replacing is added.
The content of the invention
It is used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite the invention provides a kind of
Preparation method, by being carried out strengthening the low temperature resistant modification of wear-resisting toughness reinforcing with nylon material to cartridge abrasion disc, cartridge mill can be reduced
The water absorption rate and frictional resistance of disk nylon resin are consumed, improves intensity and low-temperature flexibility；Therefore, core plate of lorry mill can be reduced
The damaged probability of disk is consumed, extends its service life, improves the car body safety in operation of railway freight-car.
For purpose as realization, in the inventive solutions, there is provided a kind of graphene/nylon activeness and quietness is compound
The preparation method of material, the graphene containing different graphene concentration/nylon activeness and quietness composite, this method phase can be obtained
For situ aggregation method and solution mixing method, this method is more suitable for industrialized production.To achieve these goals, the present invention adopts
With following technical scheme：
A kind of preparation method for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite, bag
Include following steps：
(1) coupling agent is added in graphene slurries, coupling agent divides graphene in high-speed shearing emulsion machine
Processing is dissipated, shear rate 2000-12000r/min, time 1-2h, then carries out being dried under vacuum to constant weight, drying temperature is
80℃；The percentage by weight of graphene solid content is 1-10% in graphene slurries, and the addition of coupling agent contains admittedly for graphene
The 0.5-2% of the percentage by weight of amount.
(2) in the nylon for being 89-99% by percentage by weight, the graphene of 1-10% coupling agent treatments, 0.1- are added
0.5% heat stabilizer, it is added to after being well mixed on the high mixer that rotating speed is 500-7000r/min close in Haake banbury
Refining, banbury room temperature are controlled at 230-280 DEG C, rotor speed 50-200rpm, mixing time 10-30min.
(3) material of blending is divided into size by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes
Uniform granular or sheet material, is used as master batch.
(4) in the nylon for being 30-96% by percentage by weight, 1-60% master batch, 0.1-0.5% thermostabilization are added
Agent, 3-8% toughener, stirred in high mixer high speed, be then added to extruding pelletization in double screw extruder and prepare graphite
Alkene/nylon activeness and quietness composite, extruder temperature control is for 210-280 DEG C, rotating speed 100-500r/min, the thing of extrusion
Then material dries 4-6h through cooling, pelletizing in 90 DEG C of baking ovens.
Coupling agent of the present invention is silane coupler, at least one of titanate coupling agent, silane coupler bag
Containing γ (2,3- glycidoxy) propyl trimethoxy silicane, gamma-aminopropyl-triethoxy-silane, N- (aminoethyls of β mono-)-γ-
Aminopropyl front three (second) TMOS, γ-(methacryloxypropyl) propyl trimethoxy silicane, γ-diethylenetriamine propylene three
The silane couplers such as Ethoxysilane；Titanate coupling agent includes the oleic acid acyloxy of isopropyl two (dioctyl phosphoric acid acyloxy) titanium
Acid esters, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, three iso stearate isopropyl titanates, double (two octyloxy pyrophosphoric acids
Ester group) titanate coupling agent such as ethylene titanate esters, tetra isopropyl two (dioctyl phosphito acyloxy) titanate esters.
Graphene slurries of the present invention are graphene slurries, graphene oxide slurries, biomass graphene slurries, stone
One or more of mixing in black ene derivative slurries, graphene film footpath≤2.0 μm, thickness≤1.2nm.
Nylon of the present invention is PA6, PA66, and viscosity is more than 2.5.
Heat stabilizer of the present invention is 3,5- di-t-butyl -4- hydroxy benzenes propionyl-hexamethylene diamine, phosphorous acid three (2,4-
Di-tert-butyl) ester, the one or more in four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
Toughener of the present invention is that maleic anhydride grafted polymer includes maleic anhydride stem grafting polyolefin elastomer
POE, maleic anhydride grafting ethylene propylene diene rubber EPDM, maleic anhydride graft phenylethene-butadiene copolymer SBS, maleic anhydride
One or more blends in grafted polyethylene PE, maleic anhydride inoculated polypropylene PP.
The method have the characteristics that：Graphene is set preferably to disperse in nylon through a variety of mechanical external forces, it is close with Haake
Mill carrys out banburying, and nylon viscosity is reduced in internal mixing pass, and graphene uniform is dispersed in nylon using the rotatory force of rotor, is led to
The graphene for crossing coupling agent grafting processing can have more preferable interface cohesion with nylon, improve the compatibility of graphene and nylon,
Coupling agent can prevent the aggregation of graphene simultaneously；By refining the process of graphene and nylon blending, acted on using high speed shear
Graphene uniform is distributed to graphene/nylon activeness and quietness composite that excellent performance is obtained in nylon, this method step by power
It is rapid simple, it is easy to operate, it is more suitable for industrialized production.
Embodiment
With reference to embodiment, the invention will be further described, rather than limitation the scope of the present invention.
Embodiment 1
A kind of preparation for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite of the present embodiment
Method, comprise the following steps：
(1) γ (2,3- glycidoxy) propyl trimethoxy silicane coupling agent is added in graphene slurries, in height
In fast emulsification pretreatment machine coupling agent to graphene carry out decentralized processing, shear rate 10000r/min, time 1.5h, then
Carry out being dried under vacuum to constant weight, drying temperature is 80 DEG C；The percentage by weight of graphene solid content is 5% in graphene slurries,
The addition of coupling agent is the 1.5% of the percentage by weight of graphene solid content.
(2) in the nylon 6 for being 94.6% by percentage by weight, the graphene after 5% coupling agent treatment of addition, 0.4%
3,5- di-t-butyl -4- hydroxy benzenes propionyl-hexamethylene diamine heat stabilizer, it is well mixed on the high mixer that rotating speed is 5000r/min
After be added to banburying in Haake banbury, banbury room temperature is controlled at 230-240 DEG C, rotor speed 150rpm, banburying
Between be 20min.
(3) material of blending is divided into size by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes
Uniform granular or sheet material, is used as master batch.
(4) in the nylon 6 for being 91.7% by percentage by weight, 5% master batch, 0.3% phosphorous acid three (2,4- bis- are added
Tert-butyl benzene) ester heat stabilizer, 3% maleic anhydride grafting ethylene propylene diene rubber EPDM toughener, is stirred in high mixer high speed
Mix, be then added to extruding pelletization in double screw extruder and prepare graphene/nylon activeness and quietness composite, extruder temperature control
Then system is dried in the material for 210-240 DEG C, rotating speed 100-500r/min, extrusion through cooling, pelletizing in 90 DEG C of baking ovens
4-6h。
Embodiment 2
A kind of preparation for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite of the present embodiment
Method, comprise the following steps：
(1) γ (2,3- glycidoxy) propyl trimethoxy silicane coupling agent is added in graphene slurries, in height
In fast emulsification pretreatment machine coupling agent to graphene carry out decentralized processing, shear rate 10000r/min, time 1.5h, then
Carry out being dried under vacuum to constant weight, drying temperature is 80 DEG C；The percentage by weight of graphene solid content is 5% in graphene slurries,
The addition of coupling agent is the 1.5% of the percentage by weight of graphene solid content.
(2) in the nylon 6 for being 94.6% by percentage by weight, the graphene of 5% coupling agent treatment of addition, the 3 of 0.4%,
5- di-t-butyl -4- hydroxy benzenes propionyl-hexamethylene diamine heat stabilizer, after being well mixed on the high mixer that rotating speed is 5000r/min
It is added to banburying in Haake banbury, the control of banbury room temperature is at 230-240 DEG C, rotor speed 150rpm, mixing time
For 20min.
(3) material of blending is divided into size by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes
Uniform granular or sheet material, is used as master batch.
(4) in the nylon 6 for being 84.7% by percentage by weight, 10% master batch, 0.3% phosphorous acid three (2,4- are added
Di-tert-butyl) ester heat stabilizer, 5% maleic anhydride grafting ethylene propylene diene rubber EPDM toughener, in high mixer high speed
Stirring, is then added to extruding pelletization in double screw extruder and prepares graphene/nylon activeness and quietness composite, extruder temperature
Then control is done in the material for 210-240 DEG C, rotating speed 100-500r/min, extrusion through cooling, pelletizing in 90 DEG C of baking ovens
Dry 4-6h.
Embodiment 3
A kind of preparation for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite of the present embodiment
Method, comprise the following steps：
(1) γ (2,3- glycidoxy) propyl trimethoxy silicane coupling agent is added in graphene slurries, in height
In fast emulsification pretreatment machine coupling agent to graphene carry out decentralized processing, shear rate 10000r/min, time 1.5h, then
Carry out being dried under vacuum to constant weight, drying temperature is 80 DEG C；The percentage by weight of graphene solid content is 5% in graphene slurries,
The addition of coupling agent is the 1.5% of the percentage by weight of graphene solid content.
(2) in the nylon 6 for being 94.6% by percentage by weight, the graphene of 5% coupling agent treatment of addition, the 3 of 0.4%,
5- di-t-butyl -4- hydroxy benzenes propionyl-hexamethylene diamine heat stabilizer, after being well mixed on the high mixer that rotating speed is 5000r/min
It is added to banburying in Haake banbury, the control of banbury room temperature is at 230-240 DEG C, rotor speed 150rpm, mixing time
For 20min.
(3) material of blending is divided into size by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes
Uniform granular or sheet material, is used as master batch.
(4) in the nylon 6 for being 71.7% by percentage by weight, 20% master batch, 0.3% phosphorous acid three (2,4- are added
Di-tert-butyl) ester heat stabilizer, 8% maleic anhydride grafting ethylene propylene diene rubber EPDM toughener, in high mixer high speed
Stirring, is then added to extruding pelletization in double screw extruder and prepares graphene/nylon activeness and quietness composite, extruder temperature
Then control is done in the material for 210-240 DEG C, rotating speed 100-500r/min, extrusion through cooling, pelletizing in 90 DEG C of baking ovens
Dry 4-6h.
Embodiment 4
A kind of preparation for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite of the present embodiment
Method, comprise the following steps：
(1) γ (2,3- glycidoxy) propyl trimethoxy silicane coupling agent is added in graphene slurries, in height
Coupling agent carries out decentralized processing, shear rate 10000r/min, time 1.5h, Ran Houjin to graphene in fast emulsification pretreatment machine
Row is dried under vacuum to constant weight, and drying temperature is 80 DEG C；The percentage by weight of graphene solid content is 5% in graphene slurries, even
The addition for joining agent is the 1.5% of the percentage by weight of graphene solid content.
(2) in the nylon 6 for being 94.6% by percentage by weight, the graphene of 5% coupling agent treatment of addition, the 3 of 0.4%,
5- di-t-butyl -4- hydroxy benzenes propionyl-hexamethylene diamine heat stabilizer, after being well mixed on the high mixer that rotating speed is 5000r/min
It is added to banburying in Haake banbury, the control of banbury room temperature is at 230-240 DEG C, rotor speed 150rpm, mixing time
For 25min.
(3) material of blending is divided into size by the method that the material after banburying is sheared through high-speed shearing machine or tabletting crushes
Uniform granular or sheet material, is used as master batch.
(4) in the nylon 6 for being 31.8% by percentage by weight, 60% master batch, 0.2% phosphorous acid three (2,4- are added
Di-tert-butyl) ester heat stabilizer, 8% maleic anhydride grafting ethylene propylene diene rubber EPDM toughener, in high mixer high speed
Stirring, is then added to extruding pelletization in double screw extruder and prepares graphene/nylon activeness and quietness composite, extruder temperature
Then control is done in the material for 210-240 DEG C, rotating speed 100-500r/min, extrusion through cooling, pelletizing in 90 DEG C of baking ovens
Dry 4-6h.
Now the property indices of composite made from embodiment one, embodiment two, embodiment three, example IV are entered
Row detection, testing result are as follows：
| Performance indications | Embodiment one | Embodiment two | Embodiment three | Example IV |
| Tensile strength MPa | 74 | 85 | 100 | 88 |
| Elongation strain % | 180 | 165 | 150 | 145 |
| Bending strength MPa | 83 | 96 | 104 | 110 |
| Compressive strength MPa | 109 | 121 | 140 | 155 |
| Notch impact strength (23 DEG C) KJ/m2 | 90 | 99 | 115 | 110 |
| Notch impact strength (- 50 DEG C) KJ/m2 | 25 | 28 | 35 | 30 |
| Coefficient of friction | 0.12 | 0.10 | 0.09 | 0.07 |
| Water absorption rate % | 0.9 | 0.7 | 0.2 | 0.15 |
Description of the invention and application are illustrative, are not wishing to limit the scope of the invention in above-described embodiment,
Therefore, the present invention is not limited by the present embodiment, what any technical scheme obtained using equivalence replacement was protected in the present invention
In the range of.
Claims (7)
1. a kind of preparation method for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite, it is special
Sign is, comprises the following steps：
(1) coupling agent is added in graphene slurries, coupling agent carries out scattered place to graphene in high-speed shearing emulsion machine
Reason, shear rate 2000-12000r/min, time 1-2h, then carries out being dried under vacuum to constant weight, drying temperature 80
℃；The percentage by weight of graphene solid content is 1-10% in graphene slurries, and the addition of coupling agent is graphene solid content
Percentage by weight 0.5-2%.
(2) in the nylon for being 89-99% by percentage by weight, the graphene of 1-10% coupling agent treatments is added, 0.1-0.5%'s
Heat stabilizer, banburying in Haake banbury, banburying are added to after being well mixed on the high mixer that rotating speed is 500-7000r/min
Machine room temperature is controlled at 230-280 DEG C, rotor speed 50-200rpm, mixing time 10-30min.
(3) material of blending is divided into uniform in size by the method for crushing the material after banburying through high-speed shearing machine shearing or tabletting
Granular or sheet material, used as master batch.
(4) in the nylon for being 30-96% by percentage by weight, 1-60% master batch, 0.1-0.5% heat stabilizer, 3- are added
8% toughener, stirred in high mixer high speed, be then added to extruding pelletization in double screw extruder and prepare graphene/Buddhist nun
Imperial activeness and quietness composite, extruder temperature control pass through in the material for 210-280 DEG C, rotating speed 100-500r/min, extrusion
Cooling, pelletizing, 4-6h is then dried in 90 DEG C of baking ovens.
2. a kind of according to claim 1 be used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite wood
The preparation method of material, it is characterised in that：Coupling agent described in step (1) is silane coupler, in titanate coupling agent extremely
Few one kind, silane coupler include γ (2,3- glycidoxy) propyl trimethoxy silicane, gamma-aminopropyl-triethoxy silicon
Alkane, N- (β-aminoethyl)-γ-aminopropyl front three (second) TMOS, γ-(methacryloxypropyl) propyl trimethoxy silicane,
The silane couplers such as γ-diethylenetriamine propylene triethoxysilane；Titanate coupling agent includes the oleic acid acyloxy of isopropyl two
(dioctyl phosphoric acid acyloxy) titanate esters, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, three iso stearate metatitanic acid isopropyls
The titaniums such as ester, Di(dioctylpyrophosphato) ethylene titanate, tetra isopropyl two (dioctyl phosphito acyloxy) titanate esters
Acid esters coupling agent.
3. a kind of according to claim 1 be used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite wood
The preparation method of material, it is characterised in that：Graphene slurries described in step (1) are graphene slurries, graphene oxide slurries,
Biomass graphene slurries, Graphene derivative slurries in one or more of mixing, graphene film footpath≤2.0 μm are thick
Degree≤1.2nm.
4. a kind of according to claim 1 be used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite wood
The preparation method of material, it is characterised in that：Nylon described in step (2) and step (4) is PA6, PA66, and viscosity is more than 2.5.
5. a kind of according to claim 1 be used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite wood
The preparation method of material, it is characterised in that：Heat stabilizer described in step (2) and step (4) is 3,5- di-t-butyl -4- hydroxyls
Phenylpropyl alcohol acyl-hexamethylene diamine, phosphorous acid three (2,4- di-tert-butyl) ester, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid]
One or more in pentaerythritol ester.
6. a kind of according to claim 1 be used for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite wood
The preparation method of material, it is characterised in that：Toughener described in step (4) includes maleic anhydride for maleic anhydride grafted polymer
Grafted polyolefin olefin elastomer POE, maleic anhydride grafting ethylene propylene diene rubber EPDM, maleic anhydride graft phenylethene-butadiene are common
One or more blends in polymers SBS, maleic anhydride grafted polyethylene PE, maleic anhydride inoculated polypropylene PP.
7. a kind of preparation method for core plate of lorry abrasion disc graphene/nylon activeness and quietness composite, it is special
Sign is to be prepared as the method described in claim 1-7.
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