CN116535775A - Wear-resistant and alcoholysis-resistant PP (Polypropylene) reinforced material replacing nylon glass fiber and preparation method thereof - Google Patents
Wear-resistant and alcoholysis-resistant PP (Polypropylene) reinforced material replacing nylon glass fiber and preparation method thereof Download PDFInfo
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- CN116535775A CN116535775A CN202310670316.0A CN202310670316A CN116535775A CN 116535775 A CN116535775 A CN 116535775A CN 202310670316 A CN202310670316 A CN 202310670316A CN 116535775 A CN116535775 A CN 116535775A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 167
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 107
- 238000006136 alcoholysis reaction Methods 0.000 title claims abstract description 73
- -1 Polypropylene Polymers 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 55
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 52
- 239000004677 Nylon Substances 0.000 title claims abstract description 40
- 229920001778 nylon Polymers 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 53
- 230000007062 hydrolysis Effects 0.000 claims abstract description 44
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 44
- 239000012779 reinforcing material Substances 0.000 claims abstract description 41
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 229920001577 copolymer Polymers 0.000 claims abstract description 6
- 238000007598 dipping method Methods 0.000 claims abstract description 6
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 52
- 239000011325 microbead Substances 0.000 claims description 26
- 239000000377 silicon dioxide Substances 0.000 claims description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000004094 surface-active agent Substances 0.000 claims description 13
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000002309 gasification Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 7
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 7
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims description 6
- 229960001149 dopamine hydrochloride Drugs 0.000 claims description 6
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 229940071870 hydroiodic acid Drugs 0.000 claims description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 229940037312 stearamide Drugs 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
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- 239000000843 powder Substances 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
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- 239000000835 fiber Substances 0.000 description 5
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- 239000012760 heat stabilizer Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
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- 230000009467 reduction Effects 0.000 description 4
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 229920001910 maleic anhydride grafted polyolefin Polymers 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000954 Polyglycolide Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229960003638 dopamine Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 235000021197 fiber intake Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The application relates to the field of high polymer materials, and particularly discloses a wear-resistant and alcoholysis-resistant PP (polypropylene) reinforced material for replacing nylon glass fibers and a preparation method thereof. The wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber is characterized by comprising the following raw materials in parts by weight: 55-75 parts of polypropylene, 5-10 parts of wear-resistant agent, 2-5 parts of maleic anhydride grafted polypropylene, 5-8 parts of ethylene-octene copolymer, 20-30 parts of hydrolysis-resistant glass fiber, 0.1-0.2 part of antioxidant and 0.2-0.4 part of dispersing agent; the preparation method of the hydrolysis-resistant glass fiber comprises the following steps: and (3) acidifying the glass fiber, circularly dipping the oxidized graphene suspension, and drying and reducing the glass fiber. The wear-resistant alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber has the advantages of good wear resistance, good mechanical strength such as impact resistance and tensile strength, and strong alcoholysis resistance and hydrolysis resistance.
Description
Technical Field
The application relates to the technical field of polymer composite materials, in particular to a wear-resistant and alcoholysis-resistant PP (Polypropylene) reinforced material for replacing nylon glass fiber and a preparation method thereof
Background
The PA66 plastic has good comprehensive performance, is widely applied to the fields of automobiles, household appliances, machinery, railways, weapons, buildings and the like, along with the increasing trend of environmental protection, the traditional asbestos-based friction material is gradually replaced by a semi-metal or non-asbestos organic friction material, the application of the material is gradually developed towards light weight, the application of PA66 with excellent performances such as stable friction coefficient, high strength, heat resistance, wear resistance and the like is more and more extensive, the market demand is vigorous, although the mechanical property of the PA66 can be improved by adding glass fiber, the wear resistance and the bearing capacity of the PA66 can be improved, the PA66 is particularly easy to absorb water due to the fact that the molecular chain of the PA66 contains more polar amide groups, the dimensional stability of products cannot meet the requirements of environmental stress resistance and high processing precision, and the PA66 is easy to carry out alcoholysis reaction with alcohols under the high temperature condition to cause the cracking of the products, so that the price of the PA66 is gradually increased in recent years, and the wider application of the PA66 is limited.
The polypropylene resin has the advantages of small density, good fatigue resistance, excellent chemical stability, easy processing and forming and the like, has wide application in the fields of automobile industry, household appliances and the like, has low water absorption rate and low price, can overcome the problem that the current nylon material is unstable in water absorption size, and can improve certain properties (such as forming shrinkage, rigidity, strength, toughness and the like) of the material by adding quantitative organic filler, inorganic filler, fiber and the like into PP to expand the application range of the polypropylene material and reduce the material cost to a certain extent. The fiber has good reinforcing effect on PP, and can obviously improve the strength, rigidity, modulus and heat resistance of PP, so that the polypropylene material with wear resistance and hydrolysis resistance comparable to glass fiber reinforced nylon is obtained.
According to the technical requirements of TL-VW744, namely: after the glass fiber reinforced polypropylene material is placed in a 100% ethylene glycol solution for 48 hours at a constant temperature of 135 ℃, the surface of the product is unchanged, but the glass fiber reinforced polypropylene material is subjected to alcoholysis resistance of the glass fiber reinforced polypropylene material to be improved because ethylene glycol enters the combined part of the glass fiber and the polypropylene to damage the interface of the glass fiber and the polypropylene, so that the polypropylene is degraded, and the mechanical property of the material is affected.
Disclosure of Invention
In order to improve the alcoholysis resistance of the glass fiber reinforced polypropylene material, the application provides a wear-resistant alcoholysis-resistant PP reinforcing material capable of replacing nylon glass fiber and a preparation method thereof.
In a first aspect, the present application provides a wear-resistant and alcoholysis-resistant PP reinforcement material for replacing nylon glass fiber, which adopts the following technical scheme:
the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber comprises the following raw materials in parts by weight: 55-75 parts of polypropylene, 5-10 parts of wear-resistant agent, 2-5 parts of maleic anhydride grafted polypropylene, 5-8 parts of ethylene-octene copolymer, 20-30 parts of hydrolysis-resistant glass fiber, 0.1-0.2 part of antioxidant and 0.2-0.4 part of dispersing agent;
the preparation method of the hydrolysis-resistant glass fiber comprises the following steps: and (3) acidifying the glass fiber, circularly dipping the oxidized graphene suspension, and drying and reducing the glass fiber.
According to the technical scheme, the hydrolysis-resistant glass fiber is added into the polypropylene, the hydrolysis-resistant glass fiber is prepared by acidizing the glass fiber and circularly dipping graphene oxide suspension, the reduced graphene oxide forms reduced graphene oxide after reduction, the reduced graphene oxide is deposited on the glass fiber after circular dipping, physical cross points are formed between the reduced graphene oxide and the glass fiber, meanwhile, hydrogen bond interaction exists between the reduced graphene oxide and the glass fiber, the reduced graphene oxide and the glass fiber are tightly combined with each other, the breaking strength and the tensile strength of the glass fiber are enhanced, so that the mechanical strength of a polypropylene material is improved, in addition, the deposition of the reduced graphene oxide improves the hydrophobicity of the glass fiber, and the hydrophobic surface of the glass fiber can block moisture or alcohol substances from entering the material under the environment containing moisture or alcohol substances of the polypropylene reinforced material, so that the alcoholysis resistance of the polypropylene reinforced material is improved.
Optionally, the preparation method of the hydrolysis-resistant glass fiber comprises the following steps:
(1) Immersing glass fiber in hydrochloric acid solution, taking out, washing and drying to obtain acidified glass fiber;
(2) Ultrasonically dispersing graphene oxide in normal hexane to prepare graphene oxide suspension;
(3) And (3) immersing the acidified glass fiber in the graphene oxide suspension for 2-4 hours, drying, circulating for 6-8 times, immersing in a hydroiodic acid solution, reducing for 20-24 hours, and drying at 80-90 ℃ for 10-12 hours.
By adopting the technical scheme, the glass fiber is firstly treated by the hydrochloric acid solution, the hydrochloric acid reacts with the alkali metal oxide on the surface of the glass fiber to generate soluble alkali metal salt, so that a large number of holes are formed on the surface of the glass fiber, si-OH groups are formed at the same time, a large number of holes are convenient for the deposition of the subsequent graphene oxide, and the graphene oxide is deposited on the acidified glass fiber under the reduction action of the hydroiodic acid to form the reduced graphene oxide, so that the reduced graphene oxide deposited on the acidified glass fiber forms a physical cross point, and strong hydrogen bond interaction exists between a reduced graphene oxide sheet layer and the glass fiber, thereby being beneficial to improving the tensile strength, the deposition of the reduced graphene oxide improves the hydrophobicity and the wear resistance of the glass fiber, so that the dispersibility of the glass fiber in the polypropylene material is improved, the compatibility of the glass fiber is improved, and the hydrophobic surface of the glass fiber blocks moisture from entering the inside, and the hydrolysis resistance and the alcoholysis resistance are improved.
Optionally, the hydrolysis-resistant glass fiber comprises the following raw materials in parts by weight: 10-15 parts of acidified glass fiber, 3-5 parts of graphene oxide and 95-97 parts of n-hexane.
Through adopting above-mentioned technical scheme, the graphene oxide of above-mentioned quantity can closely deposit on acidizing glass fiber, improves glass fiber's breaking strength and tensile strength, and after the reduction simultaneously, can effectively improve glass fiber's hydrophobicity, promotes and resistant hydrolysis and resistant alcoholysis effect.
Optionally, 0.5-1 weight part of polydimethylsiloxane and 0.05-0.1 weight part of dibutyl phthalate are also added into the graphene oxide suspension.
Through the technical scheme, graphene oxide is easy to fall off after being deposited on the acidified glass fiber, so that polydimethylsiloxane is added into graphene oxide suspension to serve as an adhesive, the polydimethylsiloxane is uniformly dispersed on the surfaces of the graphene oxide and the acidified glass fiber, the graphene oxide is deposited on the acidified glass fiber together with graphene oxide particles in the impregnation process and uniformly adhered on the graphene oxide and the acidified glass fiber, and when the graphene oxide is dried and heated, a molecular chain is subjected to a crosslinking reaction to form a bridging structure, the reduced graphene oxide is effectively fixed on the glass fiber, the hydrophobicity of the glass fiber can be further improved, the compatibility of the glass fiber and polypropylene can be improved, the mechanical properties such as tensile strength and the like of a polypropylene reinforcing material can be improved, and the hydrolysis resistance and the alcoholysis resistance of the polypropylene reinforcing material can be further improved.
Optionally, the preparation method of the hydrolysis-resistant glass fiber further comprises the following step (4): soaking the product obtained in the step (3) in Tris-HCl solution containing 2-4mg/ml dopamine hydrochloride for 5-6h, flushing with deionized water, then soaking in the soaking solution containing mesoporous silica microbeads, surfactant and deionized water, vacuum filtering, and drying.
Through adopting the technical scheme, polydopamine has better viscosity, and the acid glass fiber containing reduced graphene oxide is coated with polydopamine, so that the adhesion between the alcoholysis-resistant glass fiber and the mesoporous silica microbeads is improved, the mesoporous silica microbeads can be effectively adhered to the surface of the alcoholysis-resistant glass fiber, the mesoporous silica microbeads increase the roughness of the surface of the alcoholysis-resistant glass fiber, the interface bonding fastness between the alcoholysis-resistant glass fiber and polypropylene is favorably increased, and the polyethylene glycol is prevented from penetrating between the glass fiber and the polypropylene material through impregnation to cause the decomposition of the polypropylene, so that the mechanical strength is reduced.
Optionally, the mass ratio of the product obtained in the step (3), the mesoporous silica microbeads, the surfactant and the deionized water is 1:0.2-0.3:0.01-0.02:10-15.
By adopting the technical scheme, the components with the above dosage can improve the surface roughness of the acidified glass fiber and the alcoholysis resistance effect of the alcoholysis-resistant glass fiber.
Optionally, the mesoporous silica microbeads are prepared by the following method:
stirring the coal gasification fine slag in a hydrochloric acid solution with the concentration of 16-20wt% for 3-4h, filtering, washing, drying, and calcining at 600-650 ℃ for 3-4h.
By adopting the technical scheme, coal gasification fine slag is used as a main material of the porous material, metal oxide in the coal gasification fine slag is removed after acid leaching, gaps are left at the positions of the metal oxide, spherical silica microbeads with rich pore structures and rough surfaces are formed after calcination and carbon removal, and the rough surface structure increases the interfacial bonding strength between glass fibers and polypropylene, so that the polypropylene material can bear larger tensile load without damage, and the tensile strength of the polypropylene material is improved; and the spherical mesoporous silica microbeads are arranged on the glass fiber, so that the dispersion uniformity of the glass fiber and the polypropylene can be improved, the contact area of the glass fiber and the polypropylene can be increased, the interfacial adhesion of the glass fiber and the polypropylene can be improved, and the alcoholysis resistance can be improved.
Optionally, the wear-resistant agent is at least one selected from molybdenum disulfide, graphite, polytetrafluoroethylene and silicone powder.
Optionally, the antioxidant is at least one selected from antioxidant 1010, antioxidant 168 and antioxidant 1076; the dispersing agent is at least one selected from stearamide, glyceryl tristearate and microcrystalline paraffin.
In a second aspect, the present application provides a preparation method of a wear-resistant and alcoholysis-resistant PP reinforcement material for replacing nylon glass fiber, which adopts the following technical scheme:
the preparation method of the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber comprises the following steps:
mixing polypropylene, an antiwear agent, maleic anhydride grafted polypropylene and an ethylene-octene copolymer, adding an antioxidant and a dispersing agent, uniformly mixing, adding hydrolysis-resistant glass fiber through side feeding, and carrying out melting, extrusion and granulation to obtain the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber.
By adopting the technical scheme, after the raw materials are mixed, the prepared polypropylene reinforced material has better alcoholysis resistance, impact resistance and wear resistance.
In summary, the present application has the following beneficial effects:
1. the alcoholysis-resistant glass fiber prepared by acidizing the glass fiber, circularly dipping the graphene oxide, and then reducing the glass fiber is added into polypropylene, and the polypropylene is mixed with POE and other components to prepare the polypropylene reinforced material, so that the polypropylene reinforced material can be used for replacing nylon glass fiber composite materials; the surface impurities are removed after the glass fiber is acidified, so that the acidified glass fiber with increased porosity is obtained, and the high graphene oxide deposition amount is obtained, and reduced graphene oxide is formed after reduction, so that the stretching resistance and impact resistance of the glass fiber are improved, the hydrophobicity of the glass fiber is improved, the penetration of water or glycol is blocked, and the alcoholysis resistance of the polypropylene reinforcing material is improved.
2. In the application, the polydimethylsiloxane is preferably used for increasing the bonding fastness between the graphene oxide and the acidified glass fiber, further improving the hydrophobicity of the surface of the glass fiber and improving the hydrolysis resistance and the alcoholysis resistance of the alcoholysis-resistant glass fiber.
3. In the application, polydopamine is preferably used as a bonding component, mesoporous silica microbeads prepared from coal gasification fine slag are loaded on glass fibers deposited with reduced graphene oxide, and the spherical structure and the amorphous property of the mesoporous silica microbeads enable the mesoporous silica microbeads to have high bonding capability with polypropylene and good dispersibility, so that the compatibility between alcoholysis-resistant glass fibers and polypropylene can be improved, the interfacial bonding strength between the alcoholysis-resistant glass fibers and polypropylene can be improved, and the alcoholysis-resistant capability can be further improved.
Detailed Description
Preparation examples 1-10 of hydrolysis-resistant glass fiber
Preparation example 1: (1) Immersing glass fiber in 18wt% hydrochloric acid solution for 5h, taking out, washing with deionized water, removing residual solution on the surface of the fiber, and drying at 110 ℃ for 24h to obtain acidified glass fiber which is alkali-free glass short fiber with the length of 6mm;
(2) 5g of graphene oxide is dispersed in 95g of normal hexane in an ultrasonic manner to prepare graphene oxide suspension;
(3) 15g of the acidified glass fiber is immersed in the graphene oxide suspension prepared in the step (3) for 2 hours, then dried, circulated for 8 times, immersed in a 45wt% hydriodic acid solution, reduced for 24 hours, and dried at 80 ℃ for 10 hours.
Preparation example 2: (1) Immersing glass fiber in 18wt% hydrochloric acid solution for 5h, taking out, washing with deionized water, removing residual solution on the surface of the fiber, and drying at 110 ℃ for 24h to obtain acidified glass fiber which is alkali-free glass short fiber with the length of 6mm;
(2) 3g of graphene oxide is ultrasonically dispersed in 97g of normal hexane to prepare graphene oxide suspension;
(3) 10g of the acidified glass fiber is immersed in the graphene oxide suspension prepared in the step (3) for 4 hours, then dried, circulated for 6 times, immersed in a 45wt% hydriodic acid solution, reduced for 20 hours, and dried at 90 ℃ for 12 hours.
Preparation example 3: the difference from preparation example 1 is that in step (3), the acidified glass fiber was immersed in the graphene oxide suspension only once, dried after 4 hours of immersion, immersed in a 45wt% hydroiodic acid solution, reduced for 20 hours, and dried at 90 ℃ for 12 hours.
Preparation example 4: the difference from preparation example 1 is that step (1) was not performed, the glass fiber was directly immersed in the graphene oxide suspension for 4 hours and then dried, and then, after 8 times of circulation, it was immersed in a 45wt% hydroiodic acid solution for 20 hours and dried at 90 ℃.
Preparation example 5: the difference from preparation example 1 is that step (2) is specifically: 5g of graphene oxide was ultrasonically dispersed in 95g of n-hexane, and 1g of polydimethylsiloxane and 0.1g of dibutyl phthalate were added to prepare a graphene oxide suspension by ultrasonic dispersion.
Preparation example 6: the difference from the preparation example 5 is that the method further comprises the step (4): soaking the product obtained in the step (3) in Tris-HCl solution containing 4mg/ml dopamine hydrochloride for 6 hours, then flushing with deionized water, then immersing in impregnating solution containing mesoporous silica microbeads, surfactant and deionized water, vacuum filtering, drying, and preparing the product obtained in the step (3), wherein the mass ratio of the mesoporous silica microbeads, the surfactant and the deionized water is 1:0.3:0.02:15, the surfactant is fatty alcohol polyoxyethylene ether, and the particle size of the mesoporous silica microbeads is 20 mu m by the following method: the coal gasification fine slag is stirred for 4 hours in hydrochloric acid solution with the concentration of 20 weight percent, filtered, washed and dried, and then calcined for 4 hours at the temperature of 650 ℃.
Preparation example 7: the difference from the preparation example 5 is that the method further comprises the step (4): soaking the product obtained in the step (3) in Tris-HCl solution containing 2mg/ml dopamine hydrochloride for 5 hours, then flushing with deionized water, then immersing in impregnating solution containing mesoporous silica microbeads, surfactant and deionized water, vacuum filtering, drying, and preparing the product obtained in the step (3), wherein the mass ratio of the mesoporous silica microbeads, the surfactant and the deionized water is 1:0.2:0.01:10, the surfactant is fatty alcohol polyoxyethylene ether, and the particle size of the mesoporous silica microbeads is 30 mu m, by the following steps: the coal gasification fine slag is stirred for 3 hours in a hydrochloric acid solution with the concentration of 16 weight percent, filtered, washed and dried, and then calcined for 3 hours at 600 ℃.
Preparation example 8: the difference from preparation example 6 is that mesoporous carbon of the same type as CMK-3 was used instead of mesoporous silica microbeads.
Preparation example 9: the difference from preparation example 6 is that the product obtained in step (3) was not immersed in a Tris-HCl solution containing dopamine hydrochloride.
Preparation example 10: the difference from the preparation example 1 is that the method further comprises the step (4): soaking the product obtained in the step (3) in Tris-HCl solution containing 4mg/ml dopamine hydrochloride for 6 hours, then flushing with deionized water, then immersing in impregnating solution containing mesoporous silica microbeads, surfactant and deionized water, vacuum filtering, drying, and preparing the product obtained in the step (3), wherein the mass ratio of the mesoporous silica microbeads, the surfactant and the deionized water is 1:0.3:0.02:15, the surfactant is fatty alcohol polyoxyethylene ether, and the particle size of the mesoporous silica microbeads is 20 mu m by the following method: the coal gasification fine slag is stirred for 4 hours in hydrochloric acid solution with the concentration of 20 weight percent, filtered, washed and dried, and then calcined for 4 hours at the temperature of 650 ℃.
Examples
Example 1: wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber, the raw material dosage is shown in table 1, wherein the density of polypropylene is 0.9g/cm 3 The melt flow rate is 2.1g/10min, the model is K4826, the model is American Dow 8410, the wear-resistant agent is molybdenum disulfide, the antioxidant is antioxidant 1010, the dispersing agent is stearamide, and the hydrolysis-resistant glass fiber is prepared by the preparation example 1.
The preparation method of the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber comprises the following steps: mixing polypropylene, an antiwear agent, maleic anhydride grafted polypropylene and an ethylene-octene copolymer, adding an antioxidant and a dispersing agent, uniformly mixing, adding hydrolysis-resistant glass fiber through side feeding, and carrying out melting, extrusion and granulation to obtain the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber, wherein the temperature of each region of an extruder is as follows: 185 ℃ in the first area, 210 ℃ in the second area, 230 ℃ in the third area, 190 ℃ in the machine head, and 450r/min of main machine screw speed.
Table 1 raw material amounts of wear-resistant and alcoholysis-resistant PP reinforcing materials in examples 1 to 5
Examples 2 to 5: the temperature difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the temperature of the PP reinforcing material is shown in the table 1.
Example 6: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared from preparation example 2.
Example 7: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared by the preparation example 5.
Example 8: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared from preparation example 6.
Example 9: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared from preparation example 7.
Example 10: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared from preparation example 8.
Example 11: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared from the preparation example 9.
Example 12: the difference between the wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber and the example 5 is that the hydrolysis-resistant glass fiber is prepared by the preparation example 10.
Comparative example
Comparative example 1: the difference between the wear-resistant and alcoholysis-resistant PP reinforcement material replacing nylon glass fiber and the example 1 is that hydrolysis-resistant glass fiber is prepared by the preparation example 3.
Comparative example 2: the difference between the wear-resistant and alcoholysis-resistant PP reinforcement material replacing nylon glass fiber and the example 1 is that hydrolysis-resistant glass fiber is prepared in preparation example 4.
Comparative example 3: the high-rigidity glass fiber reinforced polypropylene material comprises the following components in percentage by weight: 70% of polypropylene, 24.25% of modified glass fiber, 5% of maleic anhydride grafted polyolefin elastomer, 0.3% of heat stabilizer, 0.1% of antioxidant, 0.2% of light stabilizer and 0.15% of dispersing agent. Wherein, the grafting rate of the acrylonitrile in the acrylonitrile-polypropylene graft copolymer is 16%, the reaction temperature is 125 ℃, the reaction time is 4.5 hours, and the mass ratio of the polypropylene, the acrylonitrile and the dicumyl peroxide is 100:51:3.8. the modified glass fiber is prepared by the following method: 3 parts of polyglycolide is put into acetone, 30 parts of glass fiber and 10 parts of polyurethane prepolymer are added after heating and dissolving at 40 ℃, after stirring for 2 hours, filtration is carried out, and drying is carried out at 90 ℃ for 2.5 hours, thus obtaining the modified glass fiber. Among them, the polyurethane prepolymer is preferably a polyether polyurethane prepolymer and has a functionality of 1.8 and an isocyanate content of 4.5wt%. The grafting rate of the maleic anhydride grafted polyolefin elastomer is 0.25 percent, and the melt flow rate is 0.4g/10min, wherein the polyolefin elastomer is selected from ethylene propylene diene monomer rubber. The dispersing agent is prepared by mixing hard amide, higher fatty alcohol and ethylene-vinyl acetate copolymer according to the mass ratio of 0.5:0.5:0.1, the heat stabilizer is a calcium-zinc heat stabilizer, and the antioxidant is antioxidant 1010. S1: weighing polypropylene, maleic anhydride grafted polyolefin elastomer, heat stabilizer, antioxidant, light stabilizer and dispersant according to a set weight ratio, and mixing and stirring at high speed for 10-15 minutes to obtain a mixture; s2: adding modified glass fiber and the mixture into a double-screw extruder for mixing, and carrying out melt extrusion and granulation to obtain a finished product, wherein the melt extrusion process comprises the following steps: first zone 190 ℃, second zone 200 ℃, third zone 220 ℃, fourth zone 215 ℃; the residence time was 8min and the twin-screw speed was 330r/min.
Performance test
PP reinforcing materials were prepared according to the methods in examples and comparative examples, and properties of the PP reinforcing materials were examined with reference to the following methods, and the examination results are recorded in table 2.
1. Notched impact strength: detecting according to GB/T1843-2008 'determination of impact strength of Plastic cantilever beam';
2. tensile strength and elongation at break: detecting according to GB/T1040-1002 plastic tensile property test method;
3. flexural strength and flexural modulus: detection is carried out according to GB/T9341-2008 'determination of Plastic bending Property';
4. coefficient of friction: the friction coefficient between the PP reinforcing material and the metal block is tested by GB/T10006-2021 determination of friction coefficient of plastic film and sheet, and the smaller the friction coefficient is, the more abrasion-resistant is.
5. Resistance to alcoholysis: the PP reinforcing material is soaked in 100% glycol solution for 48 hours at the constant temperature of 135 ℃, and after being dried at room temperature, the tensile strength and the bending strength of the PP reinforcing material are detected.
Table 2 wear-resistant and alcoholysis-resistant PP-reinforced material performance test for substituting nylon glass fiber
As can be seen from the data in table 2 and examples 1-5, examples 2-3 increased the amount of antiwear agent compared to example 1, the PP reinforcement had a reduced coefficient of friction and increased tensile strength and flexural strength, flexural modulus; compared with the example 3 and the example 4, the use amount of the hydrolysis-resistant glass fiber in the example 4 is increased, the impact resistance of the PP reinforcing material is enhanced, the tensile resistance is increased, the mechanical property is improved, and the friction coefficient is reduced; compared with the embodiment 1, the embodiment 5 has the advantages that the water-resistant Jie Bo fiber consumption is increased, the performances of impact resistance, tensile strength and the like of the PP reinforcing material are obviously improved, the hydrolysis-resistant glass fiber prepared in the preparation embodiment 1 is adopted in the embodiments 1-5, and after the hydrolysis, the tensile strength and the bending strength of the PP reinforcing material are reduced, and the alcoholysis resistance is high.
The hydrolysis-resistant glass fiber prepared in example 6 by using the preparation example 2 has similar detection results to those in example 5, and the PP reinforcing material has better wear resistance, alcoholysis resistance and mechanical properties.
The hydrolysis-resistant glass fiber obtained in example 7 was obtained by using the preparation example 5, in which polydimethylsiloxane and dibutyl phthalate were further added to the graphene oxide suspension, and it is shown in table 2 that the PP reinforcing material prepared in example 7 was improved in impact resistance, and after alcoholysis, the tensile strength and flexural strength decrease rate were decreased, and the alcoholysis resistance was improved, as compared with example 5.
Compared with example 5, the hydrolysis-resistant glass fibers prepared in example 8 and example 9 respectively by using the components of preparation example 6 and preparation example 7 are improved in tensile strength, impact resistance and alcoholysis resistance, and compared with preparation example 5, the acidified glass fibers are treated by using the components of polydopamine, mesoporous silica microbeads and the like.
Example 10 using hydrolysis-resistant glass fiber made in preparation example 8, the use of an equivalent amount of mesoporous carbon material instead of mesoporous silica microbeads compared to preparation example 6, the initial impact strength, tensile strength and flexural strength of the PP reinforcement material made in example 10 are increased compared to example 5, but the properties are decreased and the resistance to alcoholysis is decreased compared to examples 8 and 9.
In example 11, the hydrolysis-resistant glass fiber produced in preparation example 9 was not immersed in the dopamine-containing Tris-HCl solution, as compared with preparation example 6, and the properties such as impact resistance and tensile strength of the PP reinforcing material were not much changed as compared with examples 8 and 9, but the alcoholysis resistance was lowered.
The hydrolysis-resistant glass fiber produced in example 12 was improved in impact resistance and tensile strength and improved in alcoholysis resistance as compared with example 5, but the improvement effect was inferior to that of examples 8 and 9.
The hydrolysis-resistant glass fibers prepared in preparation examples 3 and 4 were used in comparative examples 1 and 2, respectively, and it is shown in Table 2 that the PP reinforcing materials prepared in comparative examples 1 and 2 were decreased in impact resistance, tensile strength, and flexural strength, and the rate of decrease in tensile strength and flexural strength was significantly increased after alcoholysis, and the resistance to alcoholysis was decreased.
Comparative example 3 is a polypropylene material prepared by the prior art and containing glass fibers, and has better impact resistance and tensile resistance, but weak alcoholysis resistance.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. The wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber is characterized by comprising the following raw materials in parts by weight: 55-75 parts of polypropylene, 5-10 parts of wear-resistant agent, 2-5 parts of maleic anhydride grafted polypropylene, 5-8 parts of ethylene-octene copolymer, 20-30 parts of hydrolysis-resistant glass fiber, 0.1-0.2 part of antioxidant and 0.2-0.4 part of dispersing agent;
the preparation method of the hydrolysis-resistant glass fiber comprises the following steps: and (3) acidifying the glass fiber, circularly dipping the oxidized graphene suspension, and drying and reducing the glass fiber.
2. The wear-resistant and alcoholysis-resistant PP reinforcement material substituting for nylon glass fiber according to claim 1, characterized in that: the preparation method of the hydrolysis-resistant glass fiber comprises the following steps:
(1) Immersing glass fiber in hydrochloric acid solution, taking out, washing and drying to obtain acidified glass fiber;
(2) Ultrasonically dispersing graphene oxide in normal hexane to prepare graphene oxide suspension;
(3) And (3) immersing the acidified glass fiber in the graphene oxide suspension for 2-4 hours, drying, circulating for 6-8 times, immersing in a hydroiodic acid solution, reducing for 20-24 hours, and drying at 80-90 ℃ for 10-12 hours.
3. The wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber according to claim 2, wherein the hydrolysis-resistant glass fiber comprises the following raw materials in parts by weight: 10-15 parts of acidified glass fiber, 3-5 parts of graphene oxide and 95-97 parts of n-hexane.
4. The wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber according to claim 2, wherein 0.5-1 weight parts of polydimethylsiloxane and 0.05-0.1 weight parts of dibutyl phthalate are added into the graphene oxide suspension.
5. The wear-resistant and alcoholysis-resistant PP reinforcement material replacing nylon glass fiber according to claim 2, the preparation method of the hydrolysis-resistant glass fiber further comprises the following steps: soaking the product obtained in the step (3) in Tris-HCl solution containing 2-4mg/ml dopamine hydrochloride for 5-6h, flushing with deionized water, then soaking in the soaking solution containing mesoporous silica microbeads, surfactant and deionized water, vacuum filtering, and drying.
6. The wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber according to claim 5, wherein the mass ratio of the product obtained in the step (3), mesoporous silica microbeads, surfactant and deionized water is 1:0.2-0.3:0.01-0.02:10-15.
7. The wear-resistant and alcoholysis-resistant PP reinforcement material replacing nylon glass fiber according to claim 5, characterized in that the mesoporous silica microbeads are made by the following method:
stirring the coal gasification fine slag in a hydrochloric acid solution with the concentration of 16-20wt% for 3-4h, filtering, washing, drying, and calcining at 600-650 ℃ for 3-4h.
8. The wear-resistant and alcoholysis-resistant PP reinforcement material replacing nylon glass fiber according to claim 1, wherein the wear-resistant agent is at least one selected from molybdenum disulfide, graphite, polytetrafluoroethylene and silicone powder.
9. The wear-resistant and alcoholysis-resistant PP reinforcing material replacing nylon glass fiber according to claim 1, wherein the antioxidant is at least one selected from the group consisting of antioxidant 1010, antioxidant 168 and antioxidant 1076;
the dispersing agent is at least one selected from stearamide, glyceryl tristearate and microcrystalline paraffin.
10. The method for preparing the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber according to any one of claims 1 to 9, which is characterized by comprising the following steps:
mixing polypropylene, an antiwear agent, maleic anhydride grafted polypropylene and an ethylene-octene copolymer, adding an antioxidant and a dispersing agent, uniformly mixing, adding hydrolysis-resistant glass fiber through side feeding, and carrying out melting, extrusion and granulation to obtain the wear-resistant and alcoholysis-resistant PP reinforcing material for replacing nylon glass fiber.
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