CN106810816B - A kind of brake block for disk brake - Google Patents
A kind of brake block for disk brake Download PDFInfo
- Publication number
- CN106810816B CN106810816B CN201710146422.3A CN201710146422A CN106810816B CN 106810816 B CN106810816 B CN 106810816B CN 201710146422 A CN201710146422 A CN 201710146422A CN 106810816 B CN106810816 B CN 106810816B
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- China
- Prior art keywords
- brake
- insulation layer
- thermal insulation
- brake block
- disk brake
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- 238000009413 insulation Methods 0.000 claims abstract description 46
- 239000002783 friction material Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 26
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 26
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 25
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 25
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 24
- 239000004411 aluminium Substances 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 229920000728 polyester Polymers 0.000 claims abstract description 21
- 229920002635 polyurethane Polymers 0.000 claims abstract description 21
- 239000004814 polyurethane Substances 0.000 claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 239000004642 Polyimide Substances 0.000 claims abstract description 14
- 239000011490 mineral wool Substances 0.000 claims abstract description 14
- 229920001721 polyimide Polymers 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 13
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 13
- 239000004917 carbon fiber Substances 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 13
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 11
- 239000005011 phenolic resin Substances 0.000 claims abstract description 11
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 10
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 8
- 210000002268 wool Anatomy 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 25
- 238000006116 polymerization reaction Methods 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 238000004132 cross linking Methods 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 6
- 229910052895 riebeckite Inorganic materials 0.000 description 6
- 238000013007 heat curing Methods 0.000 description 5
- 229910052622 kaolinite Inorganic materials 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Braking Arrangements (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a kind of brake blocks for disk brake, are made of backboard, thermal insulation layer and friction material, and backboard is stainless steel material, and thermal insulation layer is prepared by foamed polyurethane, polyimides, mineral wool, high silica wool, aluminium polyester；Friction material is prepared by thermoset phenolic resin, thermosetting epoxy resin, chopped carbon fiber, aramid fiber, kaolin, graphite, molybdenum disulfide, Sodium Polyacrylate, polytetrafluoroethylene (PTFE).The brake block friction stability for disk brake that the present invention is prepared is good, at low cost, density is low, braking is good, wearability is good, brake noise is low, resistance to environment capacity is strong, can meet the increasing product standard of automobile manufacture industry.
Description
Technical field
The present invention relates to friction facing fields, and in particular to a kind of brake block for disk brake.
Background technology
Brake block is the brake material that dynamic power machine and motor vehicles must assemble, and performance directly affects vehicle, equipment
The stability and reliability used.The core material of brake block, as friction material.Brake block is by friction material at being grouped as
It can be divided into：Asbestos brake lining, semi-metallic brake pad, NAO brake blocks (no organic brake block of asbestos).
Wherein, asbestos brake lining because strong heat fading and it is strong carcinogenic due to gradually abandoned and replaced by market；Semimetal is stopped
Vehicle piece replaces asbestos brake lining due to friction coefficient is high, thermal conductivity is good, machine-shaping is easy the advantages that, at present in China's brake block
It occupies an leading position in the market, but there is also high specific gravity, easily get rusty, wear mating plate, brake noise are big, thermal coefficient is excessive etc.
Disadvantage；Without the organic brake block of asbestos, mainly come using glass fibre, aromatic series polyamides fiber or other fibers (carbon, ceramics etc.)
As reinforcement material, no matter in low temperature or high temperature good braking effect is all kept, low wear rate, noise is small, can effectively prolong
The service life of long brake disc represents the developing direction of current friction material；But due to the available organic matter of NAO brake blocks
Type is various, and properties of product are irregular, and market unification is serious, and therefore, the performance of itself can be overcome by preparing
Defect, with friction stability, at low cost, density is low, braking is good, wearability is good, brake noise is low, resistance to environment capacity is strong
High-quality friction material becomes the development trend of brake block friction material in recent years.
Chinese patent CN201510704138.4 discloses a kind of brake block of semipermanent mold containing vanadium, with red copper fiber, six titaniums
Sour potassium whisker, barium sulfate, vanadium iron powder, Frication powder, stainless steel short fiber, graphite, cellulose fibre, coke blacking, modified resin nitrile
Fiber, chromite powder, nitrile rubber, vitrified bonding, glue spraying alumina silicate fibre are raw material.But the brake that the patent is prepared
Vehicle piece haves the shortcomings that high specific gravity, easily gets rusty, wears that mating plate, brake noise are big, thermal coefficient is excessive.
Therefore, it is necessary to one kind with friction stability, at low cost, density is low, braking is good, wearability is good, brake noise
The brake block of low, the resistance to strong high-quality friction material of environment capacity, to meet the increasing product standard of automobile manufacture industry.
Invention content
The present invention is in view of the above-mentioned problems, provide a kind of brake block for disk brake.
Technical solution is used by the present invention solves the above problems：A kind of brake block for disk brake, by carrying on the back
Plate, thermal insulation layer and friction material composition, backboard is stainless steel material；Thermal insulation layer by following mass percents raw material prepare and
At：Foamed polyurethane 50%~65%, polyimides 15%~25%, mineral wool 8%~15%, high silica wool 5%~10%,
Aluminium polyester 2%~4%；Friction material is prepared by the raw material of following mass percents：Thermoset phenolic resin 35%~
45%, thermosetting epoxy resin 30%~40%, chopped carbon fiber 8%~12%, aramid fiber 2%~6%, kaolin 1%
~2%, graphite 1%~2%, molybdenum disulfide 1%~2%, Sodium Polyacrylate 0.5%~1%, polytetrafluoroethylene (PTFE) 1%~2%.
Wherein, foamed polyurethane, polyimides, mineral wool, high silica wool, aluminium polyester all have good heat insulation,
And each component belongs to polar molecule, compatibility is good after mixing, improves the high temperature resistance of composition, and have with no asbestos
The compatibility of machine friction material is good, improves the hot press performance of the two so that brake block overall performance is promoted, and component green
Environmental protection, environmental pollution is small in preparation process, meets environmentally protective industrial development trend.
Wherein, the basis material using thermoset phenolic resin, thermosetting epoxy resin as friction material is conducive to carry
The high temperature resistance of high basis material, and improve the toughness of basis material, the compatibility of basis material is improved, and using the carbon that is chopped
The reinforcing fiber of fiber, aramid fiber as friction material so that the friction material of preparation has high structural strength and stabilization
Notable creep does not occur when being subjected to high speed dynamic thermal shock, still possesses metastable appearance and size for heat deformability.
Further, the mass percentage of chromium is in stainless steel material：1%~2%.
Further, the preparation method of thermal insulation layer, includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, height
Silica cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, is 60 in temperature
DEG C~70 DEG C, pressure carries out pressing bonding under conditions of being 1.5MPa~2.5MPa, obtains heat-insulated laminar substrate；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto by epoxide-resin glue completely heat-insulated
Laminar substrate surface, applies the pressure of 3MPa~5MPa under 80 DEG C~90 DEG C of temperature condition, and pressurize 15min~25min makes aluminium
Polyester is tightly compacted to be fitted in around heat-insulated laminar substrate, removes extra corner to get thermal insulation layer.
Further, in step A, the thickness of heat-insulated laminar substrate is 20mm~30mm.
Further, in step B, the thermal coefficient of thermal insulation layer is：0.05W/ (mK)~0.08W/ (mK).Its
In, thermal coefficient is tested using differential scanning calorimeter (DSC), and scanning temperature range is 20 DEG C~200 DEG C, heating rate
For 1 DEG C/min~3 DEG C/min.
Further, the preparation method of friction material, includes the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in a concentration of 0.1mol/L
In the sodium hydroxide solution of~0.5mol/L, obtain sodium polyacrylate solution, by the chopped carbon fiber of the mass percent and
Aramid fiber shreds into the segment of 8mm~15mm, is added in sodium polyacrylate solution, with the rotating speed of 50r/min~80r/min
10min~30min is stirred, dispersion high-toughness fibres are obtained；
Step S2, raw material mixture：By the thermoset phenolic resin, thermosetting epoxy resin, kaolinite of the mass percent
In soil, graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
40min~60min is stirred with the rotating speed of 100r/min~200r/min under conditions of being 20 DEG C~30 DEG C, is obtained thick pre-
Conflux body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 100 DEG C~115 in temperature
DEG C, it is molded and carries out heat-insulation pressure keeping processing for the condition of 10MPa~30MPa, make the abundant polymerization crosslinking of pre-polymerization fluid, obtain solidification tree
Fat material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained kept the temperature at 45 DEG C~60 DEG C 40min~
60min, then 15 DEG C~20 DEG C are cooled to the rate of 1 DEG C/min~2 DEG C/min, it is made annealing treatment, using mechanical processing side
Formula trims extra corner to get friction material.
Further, in step S1, the tensile strength for disperseing high-toughness fibres is：300MPa~800MPa.Wherein, it stretches
Intensity is tested using universal material mechanics machine.
Further, in step S2, the viscosity of pre-polymerization fluid is：1500mPas~5000mPas.Wherein, pre-polymerization
Fluid viscosity is tested using rotary viscosimeter.
Further, in step S3, the time of heat-insulation pressure keeping processing is：2h~4h.
Further, in step S4, the dynamic loss factor of friction material is：0.05~0.3.Wherein, dynamic loss
The factor is tested using dynamic thermomechanical analysis (DMA), and test method is tested using three-point bending method, test temperature model
It is -40 DEG C~200 DEG C to enclose, and heating rate is 2 DEG C/min~5 DEG C/min, and scan frequency is 1Hz~20Hz.
It is an advantage of the invention that：
1. the present invention forms composite type disc type by stainless steel backing plate, heat-resisting thermal insulation layer and heat curing type friction material trilaminate material
The brake block of brake has firm tough heat resistant structure characteristic, and brake block braking ability is good, rub resistance, anti-high fever, stablizes
Property is good, and service life is long；
2. the present invention is aided with various heat resistant inorganic cotton materials based on heat insulation type polyurethane foamed material, also outside
Table adheres to aluminium polyester, largely can reflect and absorb the heat-flash caused by high-speed friction, and heat-proof quality is stablized,
Structural strength is firm, has effectively completely cut off stainless steel backboard deformation caused by heat-flash effect, has enhanced the safe to use of brake block
Property；
3. the present invention using thermoset phenolic resin and epoxy resin as the main body of friction material, and be added to fibrous material and
Kollag carrys out enhancing structure intensity and changes flow behavior, and obtained friction material thermal deformation is small, and generation heat is few, dynamic
Viscous flow performance is good, and service life is stablized, and brake safe coefficient is high.
Specific implementation mode
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of brake block for disk brake is made of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared by the raw material of following mass percents：Foamed polyurethane 50%, polyimides 25%, mineral wool
11%, high silica wool 10%, aluminium polyester 4%；Friction material is prepared by the raw material of following mass percents：Heat curing type phenolic aldehyde
Resin 35%, thermosetting epoxy resin 40%, chopped carbon fiber 12%, aramid fiber 6%, kaolin 2%, graphite 2%, two sulphur
Change molybdenum 1%, Sodium Polyacrylate 1%, polytetrafluoroethylene (PTFE) 1%.Wherein, the mass percentage of chromium is in stainless steel material
1%.
Wherein, the preparation method of thermal insulation layer, includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, height
Silica cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, is 60 in temperature
DEG C, pressure carries out pressing bonding under conditions of being 1.5MPa, obtains the heat-insulated laminar substrate that thickness is 20mm；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto by epoxide-resin glue completely heat-insulated
Laminar substrate surface, applies the pressure of 3MPa under 80 DEG C of temperature condition, and pressurize 15min makes aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, extra corner is removed to get the thermal insulation layer that thermal coefficient is 0.05W/ (mK).
Wherein, the preparation method of friction material, includes the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in a concentration of 0.1mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber of the mass percent and aramid fiber cut
It is broken into the segment of 8mm, is added in sodium polyacrylate solution, 10min is stirred with the rotating speed of 50r/min, obtaining tensile strength is
The dispersion high-toughness fibres of 300MPa；
Step S2, raw material mixture：By the thermoset phenolic resin, thermosetting epoxy resin, kaolinite of the mass percent
In soil, graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
40min is stirred with the rotating speed of 100r/min under conditions of being 20 DEG C, obtains the pre- conflux that thick viscosity is 1500mPas
Body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 100 DEG C in temperature, molding
Heat-insulation pressure keeping processing 2h is carried out for the condition of 10MPa, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains curing resin material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained keeps the temperature 40min at 45 DEG C, then with 1 DEG C/min
Rate be cooled to 15 DEG C, made annealing treatment, use mechanical processing mode trim extra corner to get dynamic loss factor for
0.05 friction material.
Embodiment 2
A kind of brake block for disk brake is made of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared by the raw material of following mass percents：Foamed polyurethane 65%, polyimides 15%, mineral wool
13%, high silica wool 5%, aluminium polyester 2%；Friction material is prepared by the raw material of following mass percents：Heat curing type phenolic aldehyde
Resin 45%, thermosetting epoxy resin 30%, chopped carbon fiber 11%, aramid fiber 5%, kaolin 2%, graphite 2%, two sulphur
Change molybdenum 2%, Sodium Polyacrylate 1%, polytetrafluoroethylene (PTFE) 2%.Wherein, the mass percentage of chromium is in stainless steel material
2%.
Wherein, the preparation method of thermal insulation layer, includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, height
Silica cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, is 70 in temperature
DEG C DEG C, pressure be 2.5MPa under conditions of carry out pressing bonding, obtain thickness be 30mm heat-insulated laminar substrate；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto by epoxide-resin glue completely heat-insulated
Laminar substrate surface, applies the pressure of 5MPa under 90 DEG C of temperature condition, and pressurize 25min makes aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, extra corner is removed to get the thermal insulation layer that thermal coefficient is 0.08W/ (mK).
Wherein, the preparation method of friction material, includes the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in a concentration of 0.5mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber of the mass percent and aramid fiber cut
It is broken into the segment of 15mm, is added in sodium polyacrylate solution, 30min is stirred with the rotating speed of 80r/min, obtaining tensile strength is
The dispersion high-toughness fibres of 800MPa；
Step S2, raw material mixture：By the thermoset phenolic resin, thermosetting epoxy resin, kaolinite of the mass percent
In soil, graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
60min is stirred with the rotating speed of 200r/min under conditions of being 30 DEG C, obtains the pre- conflux that thick viscosity is 5000mPas
Body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 115 DEG C DEG C DEG C in temperature,
The condition that molding is 30MPa carries out heat-insulation pressure keeping and handles 4h, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains curing resin material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained keeps the temperature 60min at 60 DEG C, then with 2 DEG C/min
Rate be cooled to 20 DEG C, made annealing treatment, use mechanical processing mode trim extra corner to get dynamic loss factor for
0.3 friction material.
Embodiment 3
A kind of brake block for disk brake is made of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared by the raw material of following mass percents：Foamed polyurethane 57%, polyimides 20%, mineral wool
12%, high silica wool 8%, aluminium polyester 3%；Friction material is prepared by the raw material of following mass percents：Heat curing type phenolic aldehyde
Resin 42%, thermosetting epoxy resin 37%, chopped carbon fiber 8%, aramid fiber 6%, kaolin 1.5%, graphite 1.5%,
Molybdenum disulfide 1.7%, Sodium Polyacrylate 0.8%, polytetrafluoroethylene (PTFE) 1.5%.Wherein, in stainless steel material chromium quality hundred
It is 1.5% to divide content.
Wherein, the preparation method of thermal insulation layer, includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, height
Silica cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, is 65 in temperature
DEG C, pressure carries out pressing bonding under conditions of being 2MPa, obtains the heat-insulated laminar substrate that thickness is 25mm；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto by epoxide-resin glue completely heat-insulated
Laminar substrate surface, applies the pressure of 4MPa under 85 DEG C of temperature condition, and pressurize 20min makes aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, extra corner is removed to get the thermal insulation layer that thermal coefficient is 0.06W/ (mK).
Wherein, the preparation method of friction material, includes the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in a concentration of 0.3mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber of the mass percent and aramid fiber cut
It is broken into the segment of 12mm, is added in sodium polyacrylate solution, 20min is stirred with the rotating speed of 65r/min, obtaining tensile strength is
The dispersion high-toughness fibres of 550MPa；
Step S2, raw material mixture：By the thermoset phenolic resin, thermosetting epoxy resin, kaolinite of the mass percent
In soil, graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
50min is stirred with the rotating speed of 150r/min under conditions of being 25 DEG C DEG C DEG C, it is the pre- of 3300mPas to obtain thick viscosity
Conflux body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 110 DEG C in temperature, molding
Heat-insulation pressure keeping processing 3h is carried out for the condition of 20MPa, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains curing resin material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained keeps the temperature 50min at 50 DEG C, then with 1.5 DEG C/
The rate of min is cooled to 17 DEG C, is made annealing treatment, using mechanical processing mode trim extra corner to get dynamic loss because
The friction material that son is 0.17.
Embodiment 4
A kind of brake block for disk brake is made of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared by the raw material of following mass percents：Foamed polyurethane 62%, polyimides 18%, mineral wool
8%, high silica wool 9%, aluminium polyester 3%；Friction material is prepared by the raw material of following mass percents：Heat curing type phenolic aldehyde tree
Fat 44%, thermosetting epoxy resin 36%, chopped carbon fiber 12%, aramid fiber 2%, kaolin 1%, graphite 1%, curing
Molybdenum 1.8%, Sodium Polyacrylate 0.9%, polytetrafluoroethylene (PTFE) 1.3%.Wherein, in stainless steel material chromium mass percentage
It is 1.7%.
Wherein, the preparation method of thermal insulation layer, includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, height
Silica cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, is 62 in temperature
DEG C, pressure carries out pressing bonding under conditions of being 2.2MPa, obtains the heat-insulated laminar substrate that thickness is 28mm；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto by epoxide-resin glue completely heat-insulated
Laminar substrate surface, applies the pressure of 4.2MPa under 88 DEG C of temperature condition, and pressurize 22min makes the tightly compacted fitting of aluminium polyester
Around heat-insulated laminar substrate, extra corner is removed to get the thermal insulation layer that thermal coefficient is 0.07W/ (mK).
Wherein, the preparation method of friction material, includes the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in a concentration of 0.4mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber of the mass percent and aramid fiber cut
It is broken into the segment of 14mm, is added in sodium polyacrylate solution, 25min is stirred with the rotating speed of 70r/min, obtaining tensile strength is
The dispersion high-toughness fibres of 700MPa；
Step S2, raw material mixture：By the thermoset phenolic resin, thermosetting epoxy resin, kaolinite of the mass percent
In soil, graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
55min is stirred with the rotating speed of 180r/min under conditions of being 28 DEG C DEG C, obtains the pre-polymerization that thick viscosity is 4000mPas
Fluid；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 112 DEG C in temperature, molding
Heat-insulation pressure keeping processing 3.5h is carried out for the condition of 25MPa, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains curing resin material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained keeps the temperature 55min at 55 DEG C, then with 1.8 DEG C/
The rate of min is cooled to 19 DEG C, is made annealing treatment, using mechanical processing mode trim extra corner to get dynamic loss because
The friction material that son is 0.25.
Experimental example 1
The friction and wear behavior of brake block to being used for disk brake made from Examples 1 to 4 is tested, test knot
Fruit is as shown in table 1.
Wherein, friction and wear behavior test XD-MSM type constant speed formula frictional testing machines measure obtained for disc type brake
The friction coefficient and wear rate of the brake block test piece of device.Test condition temperature elevating range is 100 DEG C~350 DEG C, disc rotation speed 480r/
Min, pressing force 0.98MPa.
The friction and wear behavior test result for the brake block for disk brake that table 1 is prepared
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of brake block for disk brake is made of backboard, thermal insulation layer and friction material, which is characterized in that institute
It is stainless steel material to state backboard；The thermal insulation layer is prepared by the raw material of following mass percents：Foamed polyurethane 50%~
65%, polyimides 15%~25%, mineral wool 8%~15%, high silica wool 5%~10%, aluminium polyester 2%~4%；It is described
Friction material is prepared by the raw material of following mass percents：Thermoset phenolic resin 35%~45%, heat cured epoxy tree
Fat 30%~40%, chopped carbon fiber 8%~12%, aramid fiber 2%~6%, kaolin 1%~2%, graphite 1%~
2%, molybdenum disulfide 1%~2%, Sodium Polyacrylate 0.5%~1%, polytetrafluoroethylene (PTFE) 1%~2%.
2. the brake block according to claim 1 for disk brake, which is characterized in that chromium in the stainless steel material
The mass percentage of element is：1%~2%.
3. the brake block according to claim 1 for disk brake, which is characterized in that the preparation side of the thermal insulation layer
Method includes the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, high silica
Cotton combines successively, is bonded between layers using two-component polyurethane adhesive and silicone coupling agents, temperature be 60 DEG C~
70 DEG C, pressure carries out pressing bonding under conditions of being 1.5MPa~2.5MPa, obtains heat-insulated laminar substrate；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto thermal insulation layer base by epoxide-resin glue completely
Plate surface, applies the pressure of 3MPa~5MPa under 80 DEG C~90 DEG C of temperature condition, and pressurize 15min~25min makes aluminium polyester
It is tightly compacted to be fitted in around heat-insulated laminar substrate, extra corner is removed to get thermal insulation layer.
4. the brake block according to claim 3 for disk brake, which is characterized in that in step A, the thermal insulation layer
The thickness of substrate is 20mm~30mm.
5. the brake block according to claim 3 for disk brake, which is characterized in that in step B, the thermal insulation layer
Thermal coefficient be：0.05W/ (mK)~0.08W/ (mK).
6. the brake block according to any one of claims 1 to 5 for disk brake, which is characterized in that described to rub
The preparation method for wiping material, includes the following steps：
Step S1, high-toughness fibres dispersion：By the Sodium Polyacrylate of the mass percent be dissolved in a concentration of 0.1mol/L~
In the sodium hydroxide solution of 0.5mol/L, sodium polyacrylate solution is obtained, by the chopped carbon fiber and virtue of the mass percent
Synthetic fibre fiber shreds into the segment of 8mm~15mm, is added in sodium polyacrylate solution, is stirred with the rotating speed of 50r/min~80r/min
10min~30min is mixed, dispersion high-toughness fibres are obtained；
Step S2, raw material mixture：By the thermoset phenolic resin of the mass percent, thermosetting epoxy resin, kaolin, stone
In ink, molybdenum disulfide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, are 20 in temperature
DEG C~30 DEG C under conditions of 40min~60min stirred with the rotating speed of 100r/min~200r/min, obtain thick pre- conflux
Body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is injected into mold, is 100 DEG C~115 DEG C in temperature,
The condition that molding is 10MPa~30MPa carries out heat-insulation pressure keeping processing, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains solidified resin
Material；
Step S4, annealing trimming：The curing resin material that step S3 is obtained keeps the temperature 40min~60min at 45 DEG C~60 DEG C, then
15 DEG C~20 DEG C are cooled to the rate of 1 DEG C/min~2 DEG C/min, is made annealing treatment, is trimmed using mechanical processing mode more
Remaining corner is to get the friction material.
7. the brake block according to claim 6 for disk brake, which is characterized in that in step S1, the dispersion
The tensile strength of high-toughness fibres is：300MPa~800MPa.
8. the brake block according to claim 6 for disk brake, which is characterized in that in step S2, the pre-polymerization
The viscosity of fluid is：1500mPas~5000mPas.
9. the brake block according to claim 6 for disk brake, which is characterized in that in step S3, the heat preservation
Pressurize processing time be：2h~4h.
10. the brake block according to claim 6 for disk brake, which is characterized in that in step S4, the friction
The dynamic loss factor of material is：0.05~0.3.
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| CN106810816B true CN106810816B (en) | 2018-10-23 |
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| CN112324826A (en) * | 2020-11-02 | 2021-02-05 | 摩擦一号制动科技（仙桃）有限公司 | Comfortable high-temperature-resistant brake pad |
| CN113586638A (en) * | 2021-08-09 | 2021-11-02 | 广东洪裕智能制造研究院有限公司 | Manufacturing and process of lightweight high-performance brake pad for high-end vehicle type |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333438A (en) * | 2001-08-28 | 2002-01-30 | 上海交大贤华汽车材料发展有限公司 | Method for eliminating car brake noise |
| CN102277133A (en) * | 2011-07-29 | 2011-12-14 | 中国地质大学（武汉） | High temperature-resistant composite ceramic friction material |
| CN104356590A (en) * | 2014-10-16 | 2015-02-18 | 湖北飞龙摩擦密封材料股份有限公司 | Silane coupling agent modified friction material and friction plate made of friction material |
| CN106117956A (en) * | 2016-06-29 | 2016-11-16 | 芜湖德业摩擦材料有限公司 | A kind of low noise high temperature resistant brake |
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2017
- 2017-03-13 CN CN201710146422.3A patent/CN106810816B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333438A (en) * | 2001-08-28 | 2002-01-30 | 上海交大贤华汽车材料发展有限公司 | Method for eliminating car brake noise |
| CN102277133A (en) * | 2011-07-29 | 2011-12-14 | 中国地质大学（武汉） | High temperature-resistant composite ceramic friction material |
| CN104356590A (en) * | 2014-10-16 | 2015-02-18 | 湖北飞龙摩擦密封材料股份有限公司 | Silane coupling agent modified friction material and friction plate made of friction material |
| CN106117956A (en) * | 2016-06-29 | 2016-11-16 | 芜湖德业摩擦材料有限公司 | A kind of low noise high temperature resistant brake |
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