CN106810816A - A kind of brake block for disk brake - Google Patents
A kind of brake block for disk brake Download PDFInfo
- Publication number
- CN106810816A CN106810816A CN201710146422.3A CN201710146422A CN106810816A CN 106810816 A CN106810816 A CN 106810816A CN 201710146422 A CN201710146422 A CN 201710146422A CN 106810816 A CN106810816 A CN 106810816A
- Authority
- CN
- China
- Prior art keywords
- insulation layer
- thermal insulation
- brake block
- disk brake
- prepared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009413 insulation Methods 0.000 claims abstract description 47
- 239000002783 friction material Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 33
- 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
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 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
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 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
- 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
- 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
- 239000006185 dispersion Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 12
- 239000012467 final product Substances 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
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000003292 glue Substances 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
- 238000003754 machining Methods 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 239000004593 Epoxy Substances 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
- 238000012360 testing method Methods 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 6
- 229910052895 riebeckite Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 229910052622 kaolinite Inorganic materials 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 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
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 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
- 230000007613 environmental effect 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 210000001138 tear Anatomy 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
- 206010020741 Hyperpyrexia Diseases 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
- 244000141353 Prunus domestica Species 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
- 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
- 230000006872 improvement Effects 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002156 mixing 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
- 230000002035 prolonged 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
- 241000894007 species Species 0.000 description 1
- 238000005507 spraying 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 block for disk brake, it is made up of backboard, thermal insulation layer and friction material, backboard is stainless steel material, thermal insulation layer is prepared from by foamed polyurethane, polyimides, mineral wool, high silica wool, aluminium polyester；Friction material is prepared from by thermoset phenolic resin, thermosetting epoxy resin, chopped carbon fiber, aramid fiber, kaolin, graphite, molybdenum bisuphide, Sodium Polyacrylate, polytetrafluoroethylene (PTFE).The brake block friction stability for disk brake that the present invention is prepared is good, low cost, density is low, braking is good, wearability is good, brake noise is low, resistance to environment capacity strong, can meet the product standard that automobile manufacture industry is increasingly improved.
Description
Technical field
The present invention relates to friction facing field, 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 be assembled, and its performance directly affects vehicle, equipment
The stability and reliability for using.The core material of brake block, as friction material.Brake block is by friction material into being grouped into
Can be divided into：Asbestos brake lining, semi-metallic brake pad, NAO brake blocks (without the organic brake block of asbestos).
Wherein, asbestos brake lining is because of strong heat fading and strong carcinogenic and gradually abandoned and replaced by market；Semimetal is stopped
Car piece replaces asbestos brake lining because of the advantages of coefficient of friction is high, thermal conductivity is good, machine-shaping is easy, at present in China's brake block
In the market is occupied an leading position, but there is also high specific gravity, easily get rusty, the mating plate that weares and teares, brake noise is big, thermal conductivity factor is excessive etc.
Shortcoming；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, good braking effect is all kept in low temperature or high temperature, wear rate is low, and noise is small, can effectively prolonged
The service life of brake disc long, represents the developing direction of current friction material；But, due to the available organic matter of NAO brake blocks
Species is various, and properties of product are uneven, and its market unification is serious, therefore, preparing can overcome the performance of itself
Defect, with friction stability, 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 turns into 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 what the patent was prepared stops
Car piece have the shortcomings that high specific gravity, easily get rusty, the mating plate that weares and teares, brake noise are big, thermal conductivity factor is excessive.
Accordingly, it would be desirable to one kind has friction stability, low cost, density is low, braking is good, wearability is good, brake noise
Low, the high-quality friction material that resistance to environment capacity is strong brake block meets the product standard that automobile manufacture industry is increasingly improved.
The content of the invention
The present invention is regarding to the issue above, there is provided a kind of brake block for disk brake.
The present invention the used technical scheme that solves the above problems is：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 is by the raw material preparation of following mass percents
Into：Foamed polyurethane 50%~65%, polyimides 15%~25%, mineral wool 8%~15%, high silica wool 5%~10%,
Aluminium polyester 2%~4%；Friction material is prepared from 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 bisuphide 1%~2%, Sodium Polyacrylate 0.5%~1%, polytetrafluoroethylene (PTFE) 1%~2%.
Wherein, foamed polyurethane, polyimides, mineral wool, high silica wool, aluminium polyester are respectively provided with good effect of heat insulation,
And each component belongs to polar molecule, compatibility is good after mixing, improves the resistance to elevated temperatures of composition, and have with without asbestos
The compatibility of machine friction material is good, improves both hot press performances so that brake block overall performance is lifted, and component green
Environmental protection, environmental pollution is small in preparation process, meets the industrial development trend of environmental protection.
Wherein, be conducive to carrying as the matrix material of friction material using thermoset phenolic resin, thermosetting epoxy resin
The resistance to elevated temperatures of matrix material high, and improve the toughness of matrix material, the compatibility of matrix material is improved, and using the carbon that is chopped
Fiber, aramid fiber as friction material reinforcing fiber so that the friction material of preparation have high structural strength and stabilization
, there is no notable creep in heat deformability, still possess metastable appearance and size when dynamic thermal shock at a high speed is undergone.
Further, the weight/mass percentage composition of chromium is in stainless steel material：1%~2%.
Further, the preparation method of thermal insulation layer, comprises 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
Cotton combines silica successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, is 60 in temperature
DEG C~70 DEG C, pressure obtains heat-insulated laminar substrate to carry out pressing bonding under conditions of 1.5MPa~2.5MPa；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto completely by epoxide-resin glue heat-insulated
Laminar substrate surface, applies the pressure of 3MPa~5MPa under 80 DEG C~90 DEG C of temperature conditionss, and pressurize 15min~25min makes aluminium
Polyester is tightly compacted to be fitted in around heat-insulated laminar substrate, removes unnecessary corner, obtains final product thermal insulation layer.
Further, in step A, the thickness of heat-insulated laminar substrate is 20mm~30mm.
Further, in step B, the thermal conductivity factor of thermal insulation layer is：0.05W/ (mK)~0.08W/ (mK).Its
In, thermal conductivity factor is tested using differential scanning calorimeter (DSC), scanning temperature range be 20 DEG C~200 DEG C, heating rate
It is 1 DEG C/min~3 DEG C/min.
Further, the preparation method of friction material, comprises the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in concentration for 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
Stirring 10min~30min, obtains disperseing high-toughness fibres；
Step S2, raw material mixture：By the thermoset phenolic resin of the mass percent, thermosetting epoxy resin, kaolinite
In soil, graphite, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
To stir 40min~60min with the rotating speed of 100r/min~200r/min under conditions of 20 DEG C~30 DEG C, obtain thick pre-
Conflux body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is expelled in mould, is 100 DEG C~115 in temperature
DEG C, it is molded as the condition of 10MPa~30MPa carries out heat-insulation pressure keeping treatment, make the abundant polymerization crosslinking of pre-polymerization fluid, obtain solidification tree
Fat material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained 45 DEG C~60 DEG C be incubated 40min~
60min, then 15 DEG C~20 DEG C are cooled to the speed of 1 DEG C/min~2 DEG C/min, made annealing treatment, using machining side
Formula prunes unnecessary corner, obtains final product friction material.
Further, in step S1, the tensile strength for disperseing high-toughness fibres is：300MPa~800MPa.Wherein, stretch
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 treatment 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 method of testing 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 constitutes 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, with firm tough heat resistant structure characteristic, brake block braking ability is good, rub resistance, anti-hyperpyrexia, stabilization
Good, the long service life of property；
2. the present invention is based on heat insulation type polyurethane foamed material, and is aided with various heat resistant inorganic cotton materials, also outside
Table adheres to aluminium polyester, can largely reflect and absorb the heat-flash caused by high-speed friction, and heat-proof quality is stable,
Structural strength is consolidated, and has effectively completely cut off the stainless steel backboard deformation that heat-flash effect causes, and enhance brake block uses safety
Property；
3. main body of the present invention with thermoset phenolic resin and epoxy resin as friction material, and with the addition of fibrous material and
Kollag carrys out enhancing structure intensity and changes flow behavior, and the friction material thermal deformation for obtaining is small, produces heat few, dynamic
Viscous flow performance is good, and service life stabilization, brake safe coefficient is high.
Specific embodiment
Embodiments of the invention are described in detail below, but 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 up of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared from 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 from 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 weight/mass percentage composition of chromium is in stainless steel material
1%.
Wherein, the preparation method of thermal insulation layer, comprises 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
Cotton combines silica successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, is 60 in temperature
DEG C, pressure obtains the heat-insulated laminar substrate that thickness is 20mm to carry out pressing bonding under conditions of 1.5MPa；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto completely by epoxide-resin glue heat-insulated
Laminar substrate surface, applies the pressure of 3MPa under 80 DEG C of temperature conditionss, and pressurize 15min makes that aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, unnecessary corner is removed, obtain final product the thermal insulation layer that thermal conductivity factor is 0.05W/ (mK).
Wherein, the preparation method of friction material, comprises the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in concentration for 0.1mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber and aramid fiber of the mass percent are cut
The segment of 8mm is broken into, 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 of the mass percent, thermosetting epoxy resin, kaolinite
In soil, graphite, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
To stir 40min with the rotating speed of 100r/min under conditions of 20 DEG C, the pre- conflux that thick viscosity is 1500mPas is obtained
Body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is expelled in mould, is 100 DEG C in temperature, molding
For the condition of 10MPa carries out heat-insulation pressure keeping treatment 2h, make the abundant polymerization crosslinking of pre-polymerization fluid, obtain curing resin material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained is incubated 40min at 45 DEG C, then with 1 DEG C/min
Speed be cooled to 15 DEG C, made annealing treatment, unnecessary corner is pruned using machining mode, obtaining final product dynamic loss factor is
0.05 friction material.
Embodiment 2
A kind of brake block for disk brake, is made up of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared from 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 from 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 weight/mass percentage composition of chromium is in stainless steel material
2%.
Wherein, the preparation method of thermal insulation layer, comprises 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
Cotton combines silica successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, 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 completely by epoxide-resin glue heat-insulated
Laminar substrate surface, applies the pressure of 5MPa under 90 DEG C of temperature conditionss, and pressurize 25min makes that aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, unnecessary corner is removed, obtain final product the thermal insulation layer that thermal conductivity factor is 0.08W/ (mK).
Wherein, the preparation method of friction material, comprises the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in concentration for 0.5mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber and aramid fiber of the mass percent are cut
The segment of 15mm is broken into, 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 of the mass percent, thermosetting epoxy resin, kaolinite
In soil, graphite, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
To stir 60min with the rotating speed of 200r/min under conditions of 30 DEG C, the pre- conflux that thick viscosity is 5000mPas is obtained
Body；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is expelled in mould, is 115 DEG C DEG C DEG C in temperature,
It is molded as the condition of 30MPa carries out heat-insulation pressure keeping treatment 4h, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains curing resin material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained is incubated 60min at 60 DEG C, then with 2 DEG C/min
Speed be cooled to 20 DEG C, made annealing treatment, unnecessary corner is pruned using machining mode, obtaining final product dynamic loss factor is
0.3 friction material.
Embodiment 3
A kind of brake block for disk brake, is made up of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared from 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 from 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 bisuphide 1.7%, Sodium Polyacrylate 0.8%, polytetrafluoroethylene (PTFE) 1.5%.Wherein, in stainless steel material chromium quality hundred
Content is divided to be 1.5%.
Wherein, the preparation method of thermal insulation layer, comprises 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
Cotton combines silica successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, is 65 in temperature
DEG C, pressure obtains the heat-insulated laminar substrate that thickness is 25mm to carry out pressing bonding under conditions of 2MPa；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto completely by epoxide-resin glue heat-insulated
Laminar substrate surface, applies the pressure of 4MPa under 85 DEG C of temperature conditionss, and pressurize 20min makes that aluminium polyester is tightly compacted to be fitted in
Around heat-insulated laminar substrate, unnecessary corner is removed, obtain final product the thermal insulation layer that thermal conductivity factor is 0.06W/ (mK).
Wherein, the preparation method of friction material, comprises the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in concentration for 0.3mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber and aramid fiber of the mass percent are cut
The segment of 12mm is broken into, 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 of the mass percent, thermosetting epoxy resin, kaolinite
In soil, graphite, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
To stir 50min with the rotating speed of 150r/min under conditions of 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 expelled in mould, is 110 DEG C in temperature, molding
For the condition of 20MPa carries out heat-insulation pressure keeping treatment 3h, make the abundant polymerization crosslinking of pre-polymerization fluid, obtain curing resin material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained 50 DEG C be incubated 50min, then with 1.5 DEG C/
The speed of min is cooled to 17 DEG C, is made annealing treatment, and unnecessary corner is pruned using machining mode, obtain final product dynamic loss because
Son is 0.17 friction material.
Embodiment 4
A kind of brake block for disk brake, is made up of backboard, thermal insulation layer and friction material, and backboard is stainless steel
Material；Thermal insulation layer is prepared from 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 from 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 weight/mass percentage composition
It is 1.7%.
Wherein, the preparation method of thermal insulation layer, comprises 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
Cotton combines silica successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, is 62 in temperature
DEG C, pressure obtains the heat-insulated laminar substrate that thickness is 28mm to carry out pressing bonding under conditions of 2.2MPa；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto completely by epoxide-resin glue heat-insulated
Laminar substrate surface, applies the pressure of 4.2MPa under 88 DEG C of temperature conditionss, and pressurize 22min makes the tightly compacted laminating of aluminium polyester
Around heat-insulated laminar substrate, unnecessary corner is removed, obtain final product the thermal insulation layer that thermal conductivity factor is 0.07W/ (mK).
Wherein, the preparation method of friction material, comprises the following steps：
Step S1, high-toughness fibres dispersion：The Sodium Polyacrylate of the mass percent is dissolved in concentration for 0.4mol/L
Sodium hydroxide solution in, obtain sodium polyacrylate solution, the chopped carbon fiber and aramid fiber of the mass percent are cut
The segment of 14mm is broken into, 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 of the mass percent, thermosetting epoxy resin, kaolinite
In soil, graphite, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, in temperature
To stir 55min with the rotating speed of 180r/min under conditions of 28 DEG C DEG C, the pre-polymerization that thick viscosity is 4000mPas is obtained
Fluid；
Step S3, compression molding：The pre-polymerization fluid that step S2 is obtained is expelled in mould, is 112 DEG C in temperature, molding
For the condition of 25MPa carries out heat-insulation pressure keeping treatment 3.5h, make the abundant polymerization crosslinking of pre-polymerization fluid, obtain curing resin material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained 55 DEG C be incubated 55min, then with 1.8 DEG C/
The speed of min is cooled to 19 DEG C, is made annealing treatment, and unnecessary corner is pruned using machining mode, obtain final product dynamic loss because
Son is 0.25 friction material.
Experimental example 1
Friction and wear behavior to the obtained brake block for disk brake of embodiment 1~4 is tested, test knot
Fruit is as shown in table 1.
Wherein, friction and wear behavior test XD-MSM type constant speed formulas frictional testing machine determines obtained for disc type brake
The coefficient of friction 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, thrust 0.98MPa.
The friction and wear behavior test result of the brake block for disk brake that table 1 is prepared
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of brake block for disk brake, is made up of backboard, thermal insulation layer and friction material, it is characterised in that institute
Backboard is stated for stainless steel material；The thermal insulation layer is prepared from 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 from 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 bisuphide 1%~2%, Sodium Polyacrylate 0.5%~1%, polytetrafluoroethylene (PTFE) 1%~2%.
2. the brake block for disk brake according to claim 1, it is characterised in that chromium in the stainless steel material
The weight/mass percentage composition of element is：1%~2%.
3. the brake block for disk brake according to claim 1, it is characterised in that the preparation side of the thermal insulation layer
Method, comprises the following steps：
It is prepared by step A, heat-insulated laminar substrate：By the foamed polyurethane of the mass percent, polyimides, mineral wool, silica high
Cotton combines successively, is bonded using two-component polyurethane adhesive and silicone coupling agents between layers, temperature be 60 DEG C~
70 DEG C, pressure obtains heat-insulated laminar substrate to carry out pressing bonding under conditions of 1.5MPa~2.5MPa；
It is prepared by step B, thermal insulation layer：The aluminium polyester of the mass percent is pasted onto thermal insulation layer base completely by epoxide-resin glue
Plate surface, applies the pressure of 3MPa~5MPa under 80 DEG C~90 DEG C of temperature conditionss, and pressurize 15min~25min makes aluminium polyester
It is tightly compacted to be fitted in around heat-insulated laminar substrate, unnecessary corner is removed, obtain final product thermal insulation layer.
4. the brake block for disk brake according to claim 3, it is characterised in that in step A, the thermal insulation layer
The thickness of substrate is 20mm~30mm.
5. the brake block for disk brake according to claim 3, it is characterised in that in step B, the thermal insulation layer
Thermal conductivity factor be：0.05W/ (mK)~0.08W/ (mK).
6. the brake block for disk brake according to any one of Claims 1 to 5, it is characterised in that described to rub
The preparation method of material is wiped, is comprised the following steps：
Step S1, high-toughness fibres dispersion：By the Sodium Polyacrylate of the mass percent be dissolved in concentration for 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, obtains disperseing high-toughness fibres；
Step S2, raw material mixture：By the thermoset phenolic resin of the mass percent, thermosetting epoxy resin, kaolin, stone
In ink, molybdenum bisuphide, polytetrafluoroethylene (PTFE) input stirred tank, the dispersion high-toughness fibres that step S1 is obtained are added, be 20 in temperature
DEG C~30 DEG C under conditions of 40min~60min is 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 expelled in mould, is 100 DEG C~115 DEG C in temperature,
It is molded as the condition of 10MPa~30MPa carries out heat-insulation pressure keeping treatment, makes the abundant polymerization crosslinking of pre-polymerization fluid, obtains solidified resin
Material；
Step S4, annealing is pruned：The curing resin material that step S3 is obtained is incubated 40min~60min at 45 DEG C~60 DEG C, then
15 DEG C~20 DEG C are cooled to the speed of 1 DEG C/min~2 DEG C/min, are made annealing treatment, prune many using machining mode
Remaining corner, obtains final product the friction material.
7. the brake block for disk brake according to claim 6, it is characterised in that in step S1, the dispersion
The tensile strength of high-toughness fibres is：300MPa~800MPa.
8. the brake block for disk brake according to claim 6, it is characterised in that in step S2, the pre-polymerization
The viscosity of fluid is：1500mPas~5000mPas.
9. the brake block for disk brake according to claim 6, it is characterised in that in step S3, the insulation
Pressurize treatment time be：2h~4h.
10. the brake block for disk brake according to claim 6, it is characterised in that in step S4, the friction
The dynamic loss factor of material is：0.05~0.3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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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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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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