CN111720463B - Friction plate material, friction plate manufacturing method, clutch and brake - Google Patents
Friction plate material, friction plate manufacturing method, clutch and brake Download PDFInfo
- Publication number
- CN111720463B CN111720463B CN202010506708.XA CN202010506708A CN111720463B CN 111720463 B CN111720463 B CN 111720463B CN 202010506708 A CN202010506708 A CN 202010506708A CN 111720463 B CN111720463 B CN 111720463B
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- friction plate
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- carboxyl
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- 239000000463 material Substances 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920005989 resin Polymers 0.000 claims abstract description 134
- 239000011347 resin Substances 0.000 claims abstract description 134
- 238000004132 cross linking Methods 0.000 claims abstract description 86
- 239000007788 liquid Substances 0.000 claims abstract description 84
- 238000006243 chemical reaction Methods 0.000 claims abstract description 71
- -1 cardanol modified phenolic aldehyde amine Chemical class 0.000 claims abstract description 53
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 50
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229920001567 vinyl ester resin Polymers 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims abstract description 40
- 239000005060 rubber Substances 0.000 claims abstract description 40
- 229940126062 Compound A Drugs 0.000 claims abstract description 38
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007787 solid Substances 0.000 claims abstract description 37
- 239000003999 initiator Substances 0.000 claims abstract description 35
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000012190 activator Substances 0.000 claims abstract description 34
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002657 fibrous material Substances 0.000 claims abstract description 21
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 claims abstract description 20
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 claims abstract description 20
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000006229 carbon black Substances 0.000 claims abstract description 19
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 19
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 19
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 19
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940095100 fulvic acid Drugs 0.000 claims abstract description 14
- 239000002509 fulvic acid Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims description 74
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical group COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims description 60
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 52
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 49
- 239000004917 carbon fiber Substances 0.000 claims description 49
- 239000000835 fiber Substances 0.000 claims description 41
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 claims description 30
- 229960001826 dimethylphthalate Drugs 0.000 claims description 30
- 238000004073 vulcanization Methods 0.000 claims description 30
- 239000013590 bulk material Substances 0.000 claims description 27
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 24
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 16
- 238000005485 electric heating Methods 0.000 claims description 16
- 238000011049 filling Methods 0.000 claims description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229920000459 Nitrile rubber Polymers 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 229910052839 forsterite Inorganic materials 0.000 claims description 15
- 229910052749 magnesium Inorganic materials 0.000 claims description 15
- 239000011777 magnesium Substances 0.000 claims description 15
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 15
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims description 15
- 239000012188 paraffin wax Substances 0.000 claims description 15
- 229920002857 polybutadiene Polymers 0.000 claims description 15
- 229920000728 polyester Polymers 0.000 claims description 15
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 15
- 239000011028 pyrite Substances 0.000 claims description 15
- 229910052683 pyrite Inorganic materials 0.000 claims description 15
- 238000004513 sizing Methods 0.000 claims description 15
- 239000011029 spinel Substances 0.000 claims description 15
- 229910052596 spinel Inorganic materials 0.000 claims description 15
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 15
- 229910052845 zircon Inorganic materials 0.000 claims description 15
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 15
- 239000010445 mica Substances 0.000 claims description 14
- 229910052618 mica group Inorganic materials 0.000 claims description 14
- 229920000297 Rayon Polymers 0.000 claims description 13
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 13
- 239000012783 reinforcing fiber Substances 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 239000003610 charcoal Substances 0.000 claims description 12
- 238000013329 compounding Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 description 11
- 125000005395 methacrylic acid group Chemical group 0.000 description 11
- 229920000647 polyepoxide Polymers 0.000 description 11
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 10
- 239000010426 asphalt Substances 0.000 description 10
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 9
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
- 239000001530 fumaric acid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 238000005886 esterification reaction Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004843 novolac epoxy resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000012643 polycondensation polymerization Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/045—Bonding
- F16D2069/0466—Bonding chemical, e.g. using adhesives, vulcanising
- F16D2069/0475—Bonding chemical, e.g. using adhesives, vulcanising comprising thermal treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0491—Tools, machines, processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0061—Joining
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a friction plate material which is prepared from the following components in parts by weight: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide, wherein the resin compound A is prepared from the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator, wherein the vinyl ester resin is formed by mixing acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, and the ratio of the two is 1: 1-3. The invention also discloses a friction plate and a preparation method thereof, and a clutch and a brake made of the friction plate. The friction plate material is suitable for a cold pressing process, and is convenient for subsequent heat treatment to stabilize the size of a workpiece.
Description
Technical Field
The invention relates to the field of friction plate materials, in particular to a friction plate material, a friction plate manufacturing method, a clutch and a brake.
Background
At present, synthetic resin-based composite materials are widely adopted for manufacturing friction plates, modified phenolic resin matrixes are generally adopted, reinforcing materials, friction performance regulators and the like are used as auxiliary materials, and the material system has comprehensive compression performance, impact toughness, friction and wear performance, heat resistance and the like, so that the material can be widely and durably applied to industry. However, the phenolic resin matrix curing process utilizes condensation polymerization reaction, and small molecular gas is generated in the reaction, so that high-temperature and high-pressure curing process conditions are required, the investment on equipment and a mold is large, the technical requirement of the curing process is high, and if the process is poorly controlled, the surface of the friction plate is bulged, microcracks and even through cracks are caused, so that how to simplify or improve the manufacturing process of the friction plate, and the material boundary develops pioneering research in various directions.
It is known that phenolic resin is subjected to condensation polymerization under the condition of a hot pressing process, a condensation reaction which is carried out in advance releases micromolecule gas, a polymerization reaction which is carried out immediately establishes a cross-linking structure, and in order to prevent the release of the micromolecules to cause material looseness and even cracking, a relatively long time is needed for pressurization and solidification, which is the reason that a high-temperature and high-pressure process is needed to be used for the phenolic-based friction plate. The high-temperature and high-pressure process needs to consume a large amount of energy, and the manufacturing period is long, so that the existing phenolic aldehyde friction plate material system is not suitable for preparing the friction plate by a cold pressing process.
Disclosure of Invention
The invention provides a friction plate material capable of adopting a cold pressing process, a friction plate preparation method, a clutch and a brake for solving the technical problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a friction plate material is prepared from the following components in parts by weight: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide, wherein the resin compound A is prepared by compounding the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator, wherein the vinyl ester resin solid is formed by mixing acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, and the mixing ratio of the acrylic acid type vinyl resin to the methacrylic acid fulvic acid vinyl resin is 1: 1-3.
Further, the vinyl ester resin solid is prepared by mixing the following components in parts by weight: 1 part of acrylic acid type vinyl resin and 1-1.5 parts of methacrylic acid fulvic acid vinyl resin.
Further, the crosslinking reaction initiator is 50% methyl ethyl ketone peroxide in dimethyl phthalate; the crosslinking reaction activator is 50% cobalt naphthenate in dimethyl phthalate solution.
Further, the carboxyl-terminated liquid rubber is one or a mixture of more of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber, and the number average molecular weight of each of the carboxyl-terminated liquid rubbers is 3000-5200.
Further, the friction performance regulator is formed by mixing one or more of pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder, and the granularity is smaller than 300 meshes.
Furthermore, the reinforced fiber material is formed by mixing one or more of short-cut polyacrylonitrile-based carbon fiber, short-cut pitch-based carbon fiber, short-cut viscose-based carbon fiber, activated carbon fiber and bamboo charcoal fiber which are treated by water-emulsified polyester sizing agent, the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 6-36 mu m, and the length of the fiber is 0.4-3.6 mm.
The invention also provides a friction plate which is made of the friction plate material.
The invention also provides a preparation method of the friction plate, which comprises the following steps:
the resin compound A is prepared by mixing the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator;
putting the following components in parts by weight into a kneader to knead the components into a dough material: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide;
putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170-190 ℃, pressurizing at 3-5 MPa for mold filling, maintaining the pressure for 3-5 min, releasing pressure and exhausting, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1-2 h, opening the die, taking out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100-120 ℃ for 1-2 h.
The invention also provides a clutch which is made of the friction plate.
The invention also provides a brake which is made of the friction plate.
The invention has the advantages and positive effects that: the friction plate material disclosed by the invention adopts two vinyl ester resins with different activities, methyl ethyl ketone peroxide is used as an initiator, carboxyl-terminated rubber and cardanol modified phenolic amine are used as auxiliary materials, the purpose of gelation through addition reaction after cold pressing at room temperature is achieved, and the crosslinking density of the vinyl ester resin is improved through condensation reaction of carboxylic acid, phenolic amine and hydroxyl in the vinyl ester resin through heat treatment. The material selection of the invention is matched with the cold pressing process condition, the size of the workpiece is further stabilized by the subsequent heat treatment process, the subsequent heat treatment process and the process of bonding the friction plate to the brake rotor are combined into a whole, and the production efficiency is improved.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following examples are listed:
the invention selects two vinyl ester resins with different activities: acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, and mixing the two, and diluting with styrene to obtain a solution. Wherein the acrylic acid type vinyl resin is a modified epoxy resin obtained by esterification addition reaction of bisphenol A type epoxy resin or phenolic aldehyde type epoxy resin and acrylic acid; the methacrylic acid-rich maleic acid vinyl resin is a modified epoxy resin obtained by ring-opening esterification reaction of methacrylic acid, fumaric acid and bisphenol A type epoxy resin or phenolic aldehyde type epoxy resin.
A friction plate material is prepared from the following components in parts by weight: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide, wherein the resin compound A is prepared by compounding the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator, wherein the vinyl ester resin solid is formed by mixing acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, and the mixing ratio of the acrylic acid type vinyl resin to the methacrylic acid fulvic acid vinyl resin is 1: 1-3.
Preferably, the vinyl ester resin solid is prepared by mixing the following components in parts by weight: 1 part of acrylic acid type vinyl resin and 1-1.5 parts of methacrylic acid fulvic acid vinyl resin.
Preferably, the crosslinking reaction initiator is a 50% solution of methyl ethyl ketone peroxide in dimethyl phthalate; the crosslinking reaction activator is 50% cobalt naphthenate in dimethyl phthalate solution.
Preferably, the carboxyl-terminated liquid rubber is one or a mixture of more of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber, and the number average molecular weights of the various carboxyl-terminated liquid rubbers are 3000-5200, namely the number average molecular weight of the carboxyl-terminated liquid nitrile rubber is 3000-5200, the number average molecular weight of the carboxyl-terminated liquid styrene butadiene rubber is 3000-5200, and the number average molecular weight of the carboxyl-terminated liquid polybutadiene rubber is 3000-5200.
Preferably, the friction performance regulator is formed by mixing one or more of pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder, and the granularity is less than 300 meshes.
Preferably, the reinforced fiber material is formed by mixing one or more of short-cut polyacrylonitrile-based carbon fiber, short-cut pitch-based carbon fiber, short-cut viscose-based carbon fiber, activated carbon fiber and bamboo charcoal fiber which are treated by water-emulsified polyester sizing agent, the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 6-36 mu m, and the length of the fiber is 0.4-3.6 mm.
The invention also provides an embodiment of the friction plate, and the friction plate is made of the friction plate material.
The invention also provides an embodiment of the preparation method of the friction plate, which comprises the following steps:
the resin compound A is prepared by mixing the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator;
putting the following components in parts by weight into a kneader to knead the components into a dough material: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide;
putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170-190 ℃, pressurizing at 3-5 MPa for mold filling, maintaining the pressure for 3-5 min, releasing pressure and exhausting, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1-2 h, opening the die, taking out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100-120 ℃ for 1-2 h.
The invention also provides an embodiment of the clutch, and the clutch is made of the friction plate.
The invention also provides an embodiment of the brake, and the brake is made of the friction plate.
The following is a detailed description of the method of making the friction plate material and the friction plate from the friction plate material.
Example 1:
a friction plate material is prepared from the following components in parts by weight: 35 parts of resin compound A, 5 parts of cardanol modified phenolic amine, 5 parts of carboxyl-terminated liquid rubber, 15 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 65%, 2 parts of a crosslinking reaction initiator and 1 part of a crosslinking reaction activator. The vinyl ester resin solids were prepared from 1:1 part by weight of acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin; the crosslinking reaction initiator is dimethyl phthalate solution of 50 percent of methyl ethyl ketone peroxide; the cross-linking reaction activator is dimethyl phthalate solution of 50% cobalt naphthenate.
The carboxyl-terminated liquid rubber is carboxyl-terminated liquid nitrile rubber, and the number average molecular weight of the carboxyl-terminated liquid nitrile rubber is 3000.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is short-cut polyacrylonitrile-based carbon fiber treated by water-emulsified polyester sizing agent, the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 6 mu m, and the length of the fiber is 0.5 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170 ℃, pressurizing at 3MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 3min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 2h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100 ℃ for 2 h. Thus obtaining the manufactured friction plate.
Example 2:
a friction plate material is prepared from the following components in parts by weight: 36 parts of resin compound A, 4 parts of cardanol modified phenolic amine, 3 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 12 parts of white carbon black and 20 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 67.5%, 3 parts of a crosslinking reaction initiator and 1.5 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 1.25 parts by weight; the crosslinking reaction initiator is dimethyl phthalate solution of 50 percent of methyl ethyl ketone peroxide; the cross-linking reaction activator is dimethyl phthalate solution of 50% cobalt naphthenate.
The carboxyl-terminated liquid rubber is carboxyl-terminated liquid styrene butadiene rubber, and the number average molecular weight of the carboxyl-terminated liquid styrene butadiene rubber is 4100.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is short-cut asphalt-based carbon fiber treated by water-emulsified polyester sizing agent, the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 10 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a friction plate lining plate into a lower die of a die, putting the bulk material on the friction plate lining plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 190 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.8h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing for 2h at the temperature of 110 ℃.
Example 3:
a friction plate material is prepared from the following components in parts by weight: 37 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 6 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 19 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 70%, 4 parts of a crosslinking reaction initiator and 2 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 1.5 parts by weight; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is carboxyl-terminated liquid polybutadiene rubber, and the number average molecular weight of the carboxyl-terminated liquid polybutadiene rubber is 5200.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is short-cut viscose-based carbon fiber treated by water-emulsified polyester sizing agent, the content of non-carbon elements is less than 10 percent, the equivalent diameter of the fiber is 9 mu m, and the length of the fiber is 3.6 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 5MPa for mold filling, releasing pressure and exhausting after keeping pressure for 5min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.75h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 120 ℃ for 1.5 h.
Example 4:
a friction plate material is prepared from the following components in parts by weight: 38 parts of resin compound A, 6 parts of cardanol modified phenolic amine, 3 parts of carboxyl-terminated liquid rubber, 13 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 69%, 4 parts of a crosslinking reaction initiator and 2 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 1.15 parts by weight; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from several carboxyl-terminated liquid rubbers such as carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber and the like in a proportion of 1: 1:1 weight ratio.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 6 mu m, and the length of the fiber is 0.4 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 3MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 3min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.75h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100 ℃ for 1.25 h.
Example 5:
a friction plate material is prepared from the following components in parts by weight: 39 parts of resin compound A, 4.5 parts of cardanol modified phenolic amine, 4.5 parts of carboxyl-terminated liquid rubber, 12 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 68.5%, 3.5 parts of a crosslinking reaction initiator and 1.75 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 1.3 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from several materials of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber in a proportion of 1: 0.9: 1.1 proportion.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 11 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a friction plate lining plate into a lower die of a die, putting the bulk material on the friction plate lining plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.5h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 110 ℃ for 1.5 h.
Example 6:
a friction plate material is prepared from the following components in parts by weight: 40 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 3 parts of carboxyl-terminated liquid rubber, 11 parts of friction performance regulator, 15 parts of reinforcing fiber material, 12 parts of white carbon black and 16 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 70%, 4 parts of a crosslinking reaction initiator and 2 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 1.4 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from several materials of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber in a proportion of 1: 1.1: 0.8 proportion.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 12 mu m, and the length of the fiber is 3.6 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170 ℃, pressurizing at 5MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 3min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 2h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the lining plate into a blast electric heating oven, and performing crosslinking and curing at the temperature of 116 ℃ for 1.2 h.
Example 7:
a friction plate material is prepared from the following components in parts by weight: 41 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 4 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 12 parts of white carbon black and 15 parts of magnesium hydroxide, wherein the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 69%, 2.5 parts of a crosslinking reaction initiator and 1.25 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 2 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber and the like according to the weight ratio of 1: 0.8: 1.2, and mixing.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 12 mu m, and the length of the fiber is 0.4 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 190 ℃, pressurizing at 3MPa for mold filling, releasing pressure and exhausting after keeping pressure for 5min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing for 1h at room temperature, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the lining plate into a blast electric heating oven, and performing crosslinking and curing for 1.5h at the temperature of 100 ℃.
Example 8:
a friction plate material is prepared from the following components in parts by weight: 42 parts of resin compound A, 4.5 parts of cardanol modified phenolic amine, 3.5 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 67.5%, 3 parts of a crosslinking reaction initiator and 1.5 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 2.5 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is 0.9 of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber: 1: 1.1 the materials are mixed in any proportion.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 21 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing for 1h at room temperature, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the lining plate into a blast electric heating oven, and performing crosslinking and curing for 1h at the temperature of 100 ℃.
Example 9:
a friction plate material is prepared from the following components in parts by weight: 43 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 4 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 70%, 4 parts of a crosslinking reaction initiator and 2 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 3 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from several materials of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber in a proportion of 0.8: 1.2: 1 proportion of the components.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 36 mu m, and the length of the fiber is 3.6 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170 ℃, pressurizing at 5MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing for 1h at room temperature, opening the die and taking out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the lining plate into a blast electric heating oven, and performing crosslinking and curing for 1h at the temperature of 100 ℃.
Example 10:
a friction plate material is prepared from the following components in parts by weight: 44 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 3 parts of carboxyl-terminated liquid rubber, 10 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 15 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 67.5%, 3.2 parts of a crosslinking reaction initiator and 1.6 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 2.5 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from several materials of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber in a proportion of 1: 1: 1.2, and mixing.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 24 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a friction plate lining plate into a lower die of a die, putting the bulk material on the friction plate lining plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.5h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 110 ℃ for 1.5 h.
Example 11:
a friction plate material is prepared from the following components in parts by weight: 35 parts of resin compound A, 3 parts of cardanol modified phenolic amine, 3 parts of carboxyl-terminated liquid rubber, 15 parts of friction performance regulator, 15 parts of reinforcing fiber material, 10 parts of white carbon black and 19 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 67.5%, 3.9 parts of a crosslinking reaction initiator and 1.85 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 2.9 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene-butadiene rubber and carboxyl-terminated liquid polybutadiene rubber in a weight ratio of 3: 1: 3, and mixing the components in a ratio of 3.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 12.5 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.5h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100 ℃ for 2 h.
Example 12:
a friction plate material is prepared from the following components in parts by weight: 35 parts of resin compound A, 3.5 parts of cardanol modified phenolic amine, 3.5 parts of carboxyl-terminated liquid rubber, 16 parts of friction performance regulator, 15 parts of reinforcing fiber material, 11 parts of white carbon black and 16 parts of magnesium hydroxide.
Wherein: the resin compound A is prepared from the following components in parts by weight: 100 parts of a vinyl ester resin solution diluted with styrene and having a solids content of 67.5%, 3 parts of a crosslinking reaction initiator and 1.5 parts of a crosslinking reaction activator. Vinyl ester resin solids were prepared from acrylic and methacrylic fulvic vinyl resins in a ratio of 1: 2.7 weight ratio; the cross-linking reaction initiator is 50% methyl ethyl ketone peroxide dimethyl phthalate solution, and the cross-linking reaction activator is 50% cobalt naphthenate dimethyl phthalate solution.
The carboxyl-terminated liquid rubber is prepared from carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber and carboxyl-terminated liquid polybutadiene rubber in a weight ratio of 3: 1: 2, and mixing the components in a ratio of 2.
The friction performance regulator is prepared by mixing pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder in any proportion, and the granularity of the friction performance regulator is smaller than 300 meshes.
The reinforced fiber material is formed by mixing a plurality of carbon fibers such as chopped polyacrylonitrile-based carbon fiber, chopped asphalt-based carbon fiber, chopped viscose-based carbon fiber, activated carbon fiber, bamboo charcoal fiber and the like which are treated by a water-emulsified polyester sizing agent in any proportion, wherein the content of non-carbon elements is less than 10%, the equivalent diameter of the fiber is 21 mu m, and the length of the fiber is 2 mm.
The materials are weighed according to the proportion and then are added into a kneader to be kneaded into a bulk material.
Putting a friction plate lining plate into a lower die of a die, putting the bulk material on the friction plate lining plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 180 ℃, pressurizing at 4MPa for mold filling, releasing pressure and exhausting after maintaining pressure for 4min, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1.5h, opening the die to take out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 110 ℃ for 1.65 h.
The physical and mechanical properties of the friction plates prepared in examples 1-12 above are as follows:
wherein, the impact strength adopts a JZ-40J type plastic impact tester according to the part 1 of the GB/T1043.1-2008 plastic simple beam impact performance measurement: the non-instrumented impact test was carried out under the specified conditions using a non-notched specimen, and the condition of the specimen was adjusted before the test according to the conditions specified in GB2918-82 Standard Environment for testing.
The compressive strength and the compressive modulus are measured by adopting a CMT4202 type universal material testing machine of Shenzhen Sansi testing instrument company under the relevant specified conditions of GB T1041-2008 plastic compression performance measurement standard.
The Rockwell hardness was measured under the conditions specified in GB/T3398.2-2008 Rockwell hardness using a Rockwell hardness tester manufactured by Shanghai Plastic testing works.
The friction coefficient of the brake pad is measured by a DS-friction coefficient measuring instrument according to the conditions specified in GB 5763-2018.
The working principle of the invention is as follows:
the invention selects two vinyl ester resins with different activities: acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin are mixed and diluted by styrene to form a compound resin solution. Wherein the acrylic acid type vinyl resin is a modified epoxy resin obtained by esterification addition reaction of bisphenol A type or phenolic aldehyde type epoxy resin and methacrylic acid; the methacrylic acid-rich maleic acid vinyl resin is a modified epoxy resin obtained by ring-opening esterification reaction of methacrylic acid, fumaric acid and bisphenol A type epoxy resin or novolac epoxy resin.
The molecular weight Mc of a chain segment between double bonds in the molecular structure of the acrylic vinyl resin is larger, the calculated value of the Mc of the AE-1 type vinyl ester resin prepared from acrylic acid and E-51 epoxy resin or novolac epoxy resin is 508, and the average value of the Mc of the general 191 unsaturated polyester resin is 362, so that the acrylic vinyl resin has better toughness and higher mechanical strength after being cured than the general unsaturated polyester; the MFE type vinyl resin is different from the AE type vinyl resin in that a fumaric acid structure is introduced into a molecular structure thereof, the curing process of the acrylic type vinyl resin is a process of performing radical copolymerization reaction between double bonds of acrylic acid and styrene, and the curing process of the MFE type vinyl resin has double bonds of fumaric acid diester participating in radical copolymerization reaction with styrene in addition to the double bonds of acrylic acid. Comparing the chemical structures of acrylic acid and fumaric acid diester, it can be seen that the conjugation effect between two adjacent ester groups and the double bond in fumaric acid diester is stronger than that between one adjacent ester group and the double bond in methacrylic acid ester, and thus it can be considered that the reactivity of the double bond in fumaric acid diester is higher than that of the double bond in acrylic acid, that is, the radical copolymerization of fumaric acid diester and styrene is easier to perform, which is beneficial for the mixed material to achieve rapid gelation at room temperature.
The carboxyl-terminated liquid rubber can perform a grafting reaction with hydroxyl groups in acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, so that the toughness of the material is further improved, and the curing shrinkage rate of the vinyl resin can be reduced, so that the prepared friction plate material has good dimensional stability, and the adhesion of the friction plate and an aluminum or steel brake rotor is facilitated.
The friction performance regulator can improve the friction coefficient of the friction plate material at different temperatures and stabilize the friction and wear performance at high speed and high temperature.
The carbon fiber material for reinforcement has the characteristics of high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electric conduction and heat transfer and small thermal expansion coefficient, and can be used for improving the mechanical strength, the high temperature resistance and the wear resistance of the friction plate.
The friction plate is prepared from materials for preparing the friction plate by a cold-pressing and hot-curing process, the materials with the formula amount are weighed and then placed in a Z-shaped or spiral-belt type kneader together to be mixed into dough-shaped materials, the dough-shaped materials are added into a brake ring plate die (coated with a release agent) according to the requirement, the die assembly and the pressurization are carried out for 3-5 MPa, the die filling is carried out, the pressure is relieved after 3-5 min of pressure maintaining, the die assembly state is kept for 1-2 h in a 25 ℃ temperature environment, the material is kept for gelling and hardening, the die is unloaded, the friction plate is taken out, and then the friction plate is transferred into a blast electric heating oven and then is subjected to post-crosslinking and curing for 1-2 h at the temperature of 100-120 ℃ so as to improve the dimensional stability of the friction plate.
The resin system, the curing agent, the reinforcing material, the filler and the like are carefully selected, and the performance of the material system can be technically optimized in order to be suitable for the preparation process and the use condition of the friction plate. The technical problems to be solved and the technical scheme adopted by the invention all need professional skills, and the obtained technical effects need to be verified through strict engineering practice, so the technical scheme of the invention is not obvious.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The friction plate material is characterized by being prepared from the following components in parts by weight: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide, wherein the resin compound A is prepared by compounding the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator, wherein the vinyl ester resin solid is formed by mixing acrylic acid type vinyl resin and methacrylic acid fulvic acid vinyl resin, and the mixing ratio of the acrylic acid type vinyl resin to the methacrylic acid fulvic acid vinyl resin is 1: 1-3;
the crosslinking reaction initiator is dimethyl phthalate solution of 50 percent of methyl ethyl ketone peroxide; the crosslinking reaction activator is 50% cobalt naphthenate in dimethyl phthalate solution.
2. A friction plate material as defined in claim 1 wherein the vinyl ester resin solids are made by mixing the following components in parts by weight: 1 part of acrylic acid type vinyl resin and 1-1.5 parts of methacrylic acid fulvic acid vinyl resin.
3. The friction plate material of claim 1, wherein the carboxyl-terminated liquid rubber is one or more of carboxyl-terminated liquid nitrile rubber, carboxyl-terminated liquid styrene butadiene rubber or carboxyl-terminated liquid polybutadiene rubber, and the number average molecular weight of each of the carboxyl-terminated liquid rubbers is 3000-5200.
4. The friction plate material as claimed in claim 1, wherein the friction performance modifier is one or more of pyrite powder, zircon powder, gamma-alumina, magnesium aluminate spinel powder, mica powder and forsterite powder, and the particle size is less than 300 meshes.
5. The friction plate material as claimed in claim 1, wherein the reinforcing fiber material is one or more of short-cut polyacrylonitrile-based carbon fiber, short-cut pitch-based carbon fiber, short-cut viscose-based carbon fiber, activated carbon fiber and bamboo charcoal fiber treated by water-emulsified polyester sizing agent, the content of non-carbon element is less than 10%, the equivalent diameter of the fiber is 6-36 μm, and the length is 0.4-3.6 mm.
6. A friction plate made from the friction plate material of any one of claims 1 to 5.
7. A method of making a friction plate as described in claim 6 comprising the steps of:
the resin compound A is prepared by mixing the following components in parts by weight: 100 parts of vinyl ester resin solution which is diluted by styrene and has the solid content of 65-70%, 2-4 parts of crosslinking reaction initiator and 1-2 parts of crosslinking reaction activator;
putting the following components in parts by weight into a kneader to knead the components into a dough material: 35-44 parts of resin compound A, 3-6 parts of cardanol modified phenolic aldehyde amine, 3-6 parts of carboxyl-terminated liquid rubber, 10-15 parts of friction performance regulator, 15 parts of reinforced fiber material, 10-12 parts of white carbon black and 15-20 parts of magnesium hydroxide;
putting a lining plate of a friction plate into a lower die of a die, putting the bulk material on the lining plate of the friction plate, coating an emulsified paraffin type release agent on the inner side of an upper die of the die, then combining the lower die and the upper die together, putting the lower die and the upper die into a flat vulcanizing machine for pressure vulcanization at the vulcanization temperature of 170-190 ℃, pressurizing at 3-5 MPa for mold filling, maintaining the pressure for 3-5 min, releasing pressure and exhausting, taking the die out of the vulcanizing machine, keeping the die assembly state and placing at room temperature for 1-2 h, opening the die, taking out the lining plate bonded with the friction plate material, placing the lining plate on a tray, putting the tray into a blast electric heating oven, and performing crosslinking and curing at the temperature of 100-120 ℃ for 1-2 h.
8. A clutch formed using the friction plate of claim 6.
9. A brake characterized in that it is made using a friction plate as claimed in claim 6.
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| JPS58207538A (en) * | 1982-05-25 | 1983-12-03 | Nippon Signal Co Ltd:The | Synthetic brake shoes for railroad cars |
| US9371426B2 (en) * | 2008-12-08 | 2016-06-21 | Sabic Global Technologies B.V. | Compositions having improved tribological properties, methods of manufacture thereof and articles comprising the same |
| CN102504204B (en) * | 2011-11-24 | 2013-08-07 | 新疆赛克隆耐磨科技有限公司 | Organic polymer and carborundum composite wear-resistant material and preparation method thereof |
| CN105987111A (en) * | 2015-02-12 | 2016-10-05 | 浙江安泰汽车部件有限公司 | High-performance ceramic brake pad special for car |
| JP6338034B1 (en) * | 2016-09-28 | 2018-06-06 | 住友ベークライト株式会社 | Phenolic resin composition for friction material and friction material |
| US20180169909A1 (en) * | 2016-12-15 | 2018-06-21 | Robert Bosch Llc | Method of Making a Reinforced Friction Material |
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