CN108412925A - A kind of material and material preparation method of automotive brake pads - Google Patents
A kind of material and material preparation method of automotive brake pads Download PDFInfo
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- CN108412925A CN108412925A CN201810231508.0A CN201810231508A CN108412925A CN 108412925 A CN108412925 A CN 108412925A CN 201810231508 A CN201810231508 A CN 201810231508A CN 108412925 A CN108412925 A CN 108412925A
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000919 ceramic Substances 0.000 claims abstract description 40
- 239000011230 binding agent Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000010439 graphite Substances 0.000 claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 5
- 239000010445 mica Substances 0.000 claims abstract description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 37
- 239000000243 solution Substances 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000007792 addition Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical class [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 229930006000 Sucrose Natural products 0.000 claims description 7
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 239000005720 sucrose Substances 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 150000002732 mesitylenes Chemical class 0.000 claims description 3
- 238000013021 overheating Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- ZYUVGYBAPZYKSA-UHFFFAOYSA-N 5-(3-hydroxybutan-2-yl)-4-methylbenzene-1,3-diol Chemical compound CC(O)C(C)C1=CC(O)=CC(O)=C1C ZYUVGYBAPZYKSA-UHFFFAOYSA-N 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 240000000111 Saccharum officinarum Species 0.000 claims 1
- 235000007201 Saccharum officinarum Nutrition 0.000 claims 1
- NHADDZMCASKINP-HTRCEHHLSA-N decarboxydihydrocitrinin Natural products C1=C(O)C(C)=C2[C@H](C)[C@@H](C)OCC2=C1O NHADDZMCASKINP-HTRCEHHLSA-N 0.000 claims 1
- 229920006335 epoxy glue Polymers 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000006193 liquid solution Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002210 silicon-based material Substances 0.000 abstract description 3
- 235000013339 cereals Nutrition 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- 239000010425 asbestos Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 4
- 239000002783 friction material Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000005199 trimethylbenzenes Chemical class 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- -1 phenolic aldehyde Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of materials of automotive brake pads, include each component of following parts by weight：8 13 parts of compound resin binder, 14 19 parts of filled-type porous nano ceramics, 47 parts of glass fibre, 25 parts of hollow glass microballoon, 12 16 parts of stalk of charing, 10 14 parts of steel fibre, 6 11 parts of copper powder, 25 parts of reduced iron powder, 38 parts of blanc fixe, 10 18 parts of crystalline flake graphite, 24 parts of molybdenum disulfide, 35 parts of mica.In the brake block of the present invention existing ceramic fibre is substituted containing filled-type porous nano ceramics, since filled-type porous nano ceramics are filled composite earth silicon materials in the duct by porous nano ceramic material, nano-titanium dioxide is added in porous nano ceramic material production process simultaneously, the material for the preparation for being has higher mechanical strength, wear-resisting property and heat conductivility compared with ceramic fibre so that the stable friction factor at high temperature and wear rate of brake block are relatively low.
Description
Technical field
The invention belongs to automobile production fields, are related to a kind of material and its material preparation method of automotive brake pads.
Background technology
With the rapid development of car industry, car largely enters common people house, and the properties of car are especially
It is the problem of braking ability just becomes social general concern, because brake pad of car is the critical component in automobile brake, stops
The quality of vehicle piece performance is directly related to the reliability, stability and safety of automobilism.
The brake block for being presently used for car brake mainly has following three kinds, they have the drawback that in the application：
(1) asbestos base brake block：The friction material of asbestos base brake block is mainly based on asbestos fibre, since human body sucks
Asbestos fibre will cause physical health issues, therefore be used by limitation.In addition, asbestos base brake block heat is lost seriously, it is not suitable with
Car high-speed cruising is braked.
(2) semimetal base brake block：The formula of semi-metallic brake pad is mainly by steel fibre as framework material, phenolic aldehyde tree
Fat adds the multi-element composite material composition of various functions filler as adhesive, iron powder as anti-wear agent.Semimetal friction
Material is not to be all suitable for any car, for brake shoes, then needs more flexibility and other factors, to adapt to brake
Shoe plate influences caused by heating and diameter expansion in use.A large amount of additions of the metal material of semimetal friction material,
Its proportion is significantly increased with thermal conductivity, is enhanced the aggressiveness of antithesis, get rusty easily, low frequency noise occur etc..High specific gravity, will
Increase complete vehicle weight, increases driving cost.The increase of heat conductivility will weaken shearing resistance of the brake block under applied at elevated temperature situation
It is dangerous to cause braking for intensity.In addition, crossing high thermal conductivity also can rapidly pass a large amount of thermal energy that vehicle generates in frequent braking
To brake valve, make to generate bubble and vapour lock in hydraulic braking pipe, to seriously affect safety when vehicle braking.
(3) few Metal Substrate brake block：The friction material of few Metal Substrate brake block is that a small amount of steel fibre adds the mineral fibres to be
Various functions filler is added in matrix, then phenolic resin is added to be formed as the multi-element composite material of binder, the disadvantage is that：Mill
Damage is big, and the service life of product is short, brake noise easily occurs, and the wheel of car is easily shaken when high speed is braked, to serious
Influence the comfort of vehicle braking.
Existing brake block much uses ceramic fibre material to prepare, and the brake block friction coefficient of preparation is high and at high temperature
Low wear rate, but the automobile for running at high speed is at relatively high temperatures, simple ceramic brake cannot meet brake block
Braking quality and wear rate demand, especially for being replaced for superior automobile, automotive brake pads is cumbersome and cost is higher.
Invention content
The purpose of the present invention is to provide a kind of material of automotive brake pads and its material preparation method, contain in the brake block
There are filled-type porous nano ceramics to substitute existing ceramic fibre, since filled-type porous nano ceramics are by porous nano ceramics
Filled composite earth silicon material in the duct of material, while nano-silica is added in porous nano ceramic material production process
Change titanium, the material for the preparation for being has higher mechanical strength, wear-resisting property and heat conductivility compared with ceramic fibre so that stops
The stable friction factor at high temperature and wear rate of vehicle piece are relatively low.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of material of automotive brake pads, includes each component of following parts by weight：
8-13 parts of compound resin binder, 14-19 parts of filled-type porous nano ceramics, 4-7 parts of glass fibre, hollow glass
2-5 parts of microballoon, 12-16 parts of stalk of charing, 10-14 parts of steel fibre, 6-11 parts of copper powder, 2-5 parts of reduced iron powder, blanc fixe 3-
8 parts, 10-18 parts of crystalline flake graphite, 2-4 parts of molybdenum disulfide, 3-5 parts of mica；
The preparation process of the compound resin binder is as follows：
(1) phenol is added in reaction vessel, is warming up to 50-60 DEG C of addition sodium hydroxide, is added after stirring and dissolving certain
The formalin of amount 37%, is warming up to 80-90 DEG C and is stirred to react 2-3h；
(2) after and then being uniformly mixed to the middle addition bisphenol A epoxide resin of step (1), a certain amount of 37% first is added
Aldehyde solution, is stirred to react after 1-2h to be added sucrose is added thereto, is stirred to react 3-4h, obtains compound resin binder；
The amount that formalin is added in the step (1) in 1mol phenol is 1.56-1.63g；
The amount of the amount and the substance that phenol is added in step (1) of the substance of bisphenol A epoxide resin is added in the step (2)
The ratio between be 0.37-0.41:1, while the amount that formaldehyde is added in step (2) is identical as the amount that formaldehyde in step (1) is added；
The ratio between the amount that the amount of the substance of sucrose is added in the step (2) and formaldehyde substance is added is 0.26-0.31:1；
The preparation process of the filled-type porous nano ceramics is as follows：
(1) P123 is dissolved in deionized water, ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes a part of aluminum nitrate to be dissolved in deionized water, while being added after 1,3,5 trimethylbenzenes are uniformly mixed
P123 solution is added dropwise at 60-75 DEG C, after being added dropwise completely, persistently stirs 30-40min, obtains mixed colloidal solution, it then will be another
Part aluminum nitrate is dissolved in deionized water, is added after a certain amount of nano-titanium dioxide is uniformly mixed and is obtained after dissolving
Mixed solution is added in mixed colloidal solution mixed solution, is stirred to react the aging at 110 DEG C after becoming clarification to colloidal solution
Then 12h carries out drying roasting and obtains porous nano ceramic material；
(3) step 2 is prepared into porous nano ceramic material and Ludox is put into be stirred under vacuum in container and vacuumizes 30-
50min makes Ludox enter in the duct of porous nano ceramic material, then takes out after product in 70-80 DEG C of microwave drying oven
In be dried, remove the water in Ludox in duct, so that the silica in Ludox remains in duct, be made
Filled-type porous nano ceramics, the material have high intensity and high heat conduction wearability；
The amount that deionized water is added in the step (1) in 1gP123 is 25-40mL, and the amount that ammonium hydroxide is added is 5-7mL；
The amount that deionized water is added in the step (2) in mixed colloidal solution in 1g aluminum nitrates is 10-12mL, is added 1,
The quality of 3,5 trimethylbenzenes is 1.2-1.5g, and the amount that P123 solution is added is 22-25mL；
The amount that deionized water is added in the step (2) in mixed solution in 1g aluminum nitrates is 10-12mL, and nanometer two is added
The amount of titanium oxide is 0.01-0.03g；
The mass ratio of porous nano ceramic material and Ludox is 1 in the step (3)：1.2-1.4；
It is described charing stalk preparation process be：
(1) segment that wheat stalk is cut into 1-2cm long, after then stalk is cleaned up repeatedly with deionized water
It dries in baking oven, then crushes the stalk of drying with pulverizer；
(2) stalk of crushing is put into dry reaction vessel, a certain amount of dense sulphur is then added into reaction vessel
Acid is heated to 40 DEG C and is stirred to react 3-4h, obtains the preliminary charing stalk of black；
(3) preliminary charing stalk is crushed again and is ground to grain size less than 10 mesh, the charcoal of 10 mesh is more than for grain size
Change stalk and be crushed to grain size repeatedly less than 10 mesh, the small particle obtained after crushing is tentatively then carbonized to stalk and is placed in 500-550
DEG C Muffle furnace in carbonization reaction 8-12h, obtain charing stalk；
The volume that the concentrated sulfuric acid is added in the step (2) in every gram of stalk is 4-5mL；
A kind of preparation method of the material of automotive brake pads is as follows：
(1) filled-type porous nano ceramics, glass fibre, hollow glass microballoon, charing stalk and steel fibre are passed through into ball
Grinding machine attrition grinding is for use after mixing；
(2) copper powder, reduced iron powder, blanc fixe, crystalline flake graphite, molybdenum disulfide and mica are added to the ball milling of step 1
It is fully ground mixing in machine, obtains mixture；
(1) the brake block backboard of mixture and even spread compound resin binder feeding mold pressing procedure is processed,
The blank obtained after processing obtains automotive brake pads through Overheating Treatment and grinding process.
Beneficial effects of the present invention：
Existing ceramic fibre is substituted containing filled-type porous nano ceramics in the brake block of the present invention, since filled-type is more
Hole nano ceramics is filled composite earth silicon material in the duct by porous nano ceramic material, while in porous nano ceramics
Nano-titanium dioxide is added in Material Manufacturing Process, the material for the preparation for being has higher machinery strong compared with ceramic fibre
Degree, wear-resisting property and heat conductivility so that the stable friction factor at high temperature and wear rate of brake block are relatively low.
The filled-type porous nano ceramics that the present invention contains in brake block are nanometer materials, and grain size is smaller, Ke Yijun
Even being scattered in rushes out in piece mixing material so that the brake pad material of preparation is uniform in material.
The brake block that the present invention is prepared by compound resin binder is due to being added bisphenol A epoxide resin epoxy in binder
Resin and sucrose can adequately the reaction was complete by free aldehyde and free phenol so that the stability of binder enhances so that brake
The material adhesive property on piece surface is stablized so that the wear rate of brake block declines.
The carbon source that the present invention is added in brake block production is prepared by charing stalk material, can not only realize waste straw
Reasonable utilization, simultaneously because charing stalk in organic matter and impurity component pass through sulfuric acid acidification and high temperature carbonization two-step reaction
So that the higher carbon source of the purity containing higher-strength in charing stalk, can be used as lubrication antifriction material so that the brake of preparation
The intensity of vehicle piece and anti-friction performance enhancement.
Specific implementation mode
Embodiment 1：
A kind of preparation method of the material of automotive brake pads is as follows：
(1) by 1.4kg filled-types porous nano ceramics, 0.4kg glass fibres, 0.2kg hollow glass microballoons, 1.2kg charcoals
Change stalk and 1kg steel fibres are for use after mixing by ball mill attrition grinding；
(2) by 0.6kg copper powders, 0.2kg reduced iron powders, 0.3kg blanc fixes, 1kg crystalline flake graphites, 0.2kg curing
Molybdenum and 0.3kg micas, which are added in the ball mill of step 1, is fully ground mixing, obtains mixture；
(3) the brake block backboard of mixture and even spread 0.8Kg compound resin binders mold pressing procedure is sent into carry out
Processing, the blank obtained after processing obtain automotive brake pads through Overheating Treatment and grinding process.
The preparation process of the compound resin binder is as follows：
(1) 9.411kg phenol is added in reaction vessel, is warming up to 50-60 DEG C of addition 0.3kg sodium hydroxide, stirring is molten
The formalin of 15.6kg37% is added after solution, is warming up to 80-90 DEG C and is stirred to react 2-3h；
(2) it after and then being uniformly mixed to the middle addition 3.72kg bisphenol A epoxide resins of step (1), is added
The formalin of 15.6kg37% is added addition 4.056kg sucrose thereto after being stirred to react 1-2h, is stirred to react 3-4h, obtains
To compound resin binder；
The preparation process of the filled-type porous nano ceramics is as follows：
(1) 1kgP123 is dissolved in 2.5L deionized waters, 5L ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes 0.368kg aluminum nitrates to be dissolved in 3.7L deionized waters, while 0.463Kg1 is added, the stirring of 3,5 trimethylbenzenes is mixed
P123 solution is added dropwise after closing uniformly at 60-75 DEG C, after being added dropwise completely, persistently stirs 30-40min, obtains mixed colloidal solution,
Then 0.368kg aluminum nitrates are dissolved in 3.7L deionized waters, 3.68g nano-titanium dioxides is added after dissolving and are stirred
Mixed solution is obtained after uniformly, mixed solution is added in mixed colloidal solution, is stirred to react after becoming clarification to colloidal solution
Then aging 12h at 110 DEG C carries out drying roasting and obtains porous nano ceramic material；
(3) it takes porous nano ceramic material 0.5kg and 0.6kg Ludox prepared by step 2 to be put into be stirred under vacuum in container
30-50min is vacuumized, Ludox is made to enter in the duct of porous nano ceramic material, is then taken out micro- at 70-80 DEG C after product
It is dried in wave drying box, the water in Ludox in duct is removed, so that the silica in Ludox remains in hole
In road, filled-type porous nano ceramics are made, which has high intensity and high heat conduction wearability.
It is described charing stalk preparation process be：
(1) segment that wheat stalk is cut into 1-2cm long, after then stalk is cleaned up repeatedly with deionized water
It dries in baking oven, then crushes the stalk of drying with pulverizer；
(2) the 1kg stalks crushed are put into dry reaction vessel, the dense sulphur of 4kg is then added into reaction vessel
Acid is heated to 40 DEG C and is stirred to react 3-4h, obtains the preliminary charing stalk of black；
(3) preliminary charing stalk is crushed again and is ground to grain size less than 10 mesh, the charcoal of 10 mesh is more than for grain size
Change stalk and be crushed to grain size repeatedly less than 10 mesh, the small particle obtained after crushing is tentatively then carbonized to stalk and is placed in 500-550
DEG C Muffle furnace in carbonization reaction 8-12h, obtain charing stalk.
Embodiment 2：
A kind of preparation method of the material of automotive brake pads is as follows：
(1) by 1.9kg filled-types porous nano ceramics, 0.7kg glass fibres, 0.5kg hollow glass microballoons, 1.6kg charcoals
Change stalk and 1.4kg steel fibres are for use after mixing by ball mill attrition grinding；
(2) by 1.1kg copper powders, 0.5kg reduced iron powders, 0.8kg blanc fixes, 1.8kg crystalline flake graphites, bis- sulphur of 0.4kg
Change molybdenum and 0.5kg micas are added in the ball mill of step 1 and are fully ground mixing, obtains mixture (3) and applied by mixture and uniformly
The brake block backboard of cloth 1.3Kg compound resin binders is sent into mold pressing procedure and is processed, and the blank obtained after processing is through overheat
Processing and grinding process obtain automotive brake pads.
The preparation process of the compound resin binder is as follows：
(1) 9.411kg phenol is added in reaction vessel, is warming up to 50-60 DEG C of addition 0.3kg sodium hydroxide, stirring is molten
The formalin of 16.3kg37% is added after solution, is warming up to 80-90 DEG C and is stirred to react 2-3h；
(2) it after and then being uniformly mixed to the middle addition 4.11kg bisphenol A epoxide resins of step (1), is added
The formalin of 16.3kg37% is added addition 5.053kg sucrose thereto after being stirred to react 1-2h, is stirred to react 3-4h, obtains
To compound resin binder；
The preparation process of the filled-type porous nano ceramics is as follows：
(1) 1kgP123 is dissolved in 4L deionized waters, 7L ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes 0.545kg aluminum nitrates to be dissolved in 6.2L deionized waters, while 0.762kg1 is added, the stirring of 3,5 trimethylbenzenes is mixed
P123 solution is added dropwise after closing uniformly at 60-75 DEG C, after being added dropwise completely, persistently stirs 30-40min, obtains mixed colloidal solution,
Then 0.545kg aluminum nitrates are dissolved in 6.2L deionized waters, it is mixed that the stirring of 16.35g nano-titanium dioxides is added after dissolving
Mixed solution is obtained after closing uniformly, mixed solution is added in mixed colloidal solution, is stirred to react after becoming clarification to colloidal solution
Then the aging 12h at 110 DEG C carries out drying roasting and obtains porous nano ceramic material；
(3) it takes porous nano ceramic material 0.6kg and 0.84kg Ludox prepared by step 2 to be put into be stirred under vacuum in container
30-50min is vacuumized, Ludox is made to enter in the duct of porous nano ceramic material, is then taken out micro- at 70-80 DEG C after product
It is dried in wave drying box, the water in Ludox in duct is removed, so that the silica in Ludox remains in hole
In road, filled-type porous nano ceramics are made, which has high intensity and high heat conduction wearability.
It is described charing stalk preparation process be：
(1) segment that wheat stalk is cut into 1-2cm long, after then stalk is cleaned up repeatedly with deionized water
It dries in baking oven, then crushes the stalk of drying with pulverizer；
(2) the 1kg stalks crushed are put into dry reaction vessel, the dense sulphur of 5kg is then added into reaction vessel
Acid is heated to 40 DEG C and is stirred to react 3-4h, obtains the preliminary charing stalk of black；
(3) preliminary charing stalk is crushed again and is ground to grain size less than 10 mesh, the charcoal of 10 mesh is more than for grain size
Change stalk and be crushed to grain size repeatedly less than 10 mesh, the small particle obtained after crushing is tentatively then carbonized to stalk and is placed in 500-550
DEG C Muffle furnace in carbonization reaction 8-12h, obtain charing stalk.
Comparative example 1：
The preparation method of the material of automotive brake pads is same as Example 1, and compound resin binder is replaced with phenolic aldehyde tree
Fat.
Comparative example 2：
The preparation method of the material of automotive brake pads is same as Example 1, and filled-type porous nano ceramics are replaced with pottery
Porcelain fiber.
The brake block prepared in embodiment 1-2 and comparative example 1-2 is carried out to the test of friction and wear behavior, wherein friction mill
The test of damage performance is measured by fixed speed fricting test machine, and measurement result is as shown in table 1：
As shown in Table 1, with the raising of temperature, the friction coefficient temperature of the standby brake block of filled-type porous nano ceramic system
The change rate of friction coefficient is 7.3% when degree rises 200 DEG C, it can thus be appreciated that the standby brake block of filled-type porous nano ceramic system rubs
The stability for wiping coefficient is preferable, while wear rate is smaller compared to the variation of ceramic fibre wear rate, and in the higher condition of temperature
Lower wear rate is relatively low；The brake block prepared simultaneously by compound resin binder in binder due to being added bisphenol A epoxide resin
Epoxy resin and sucrose can adequately the reaction was complete by free aldehyde and free phenol so that the stability of binder enhances so that
The material adhesive property of disc surface is stablized so that the wear rate of brake block declines.
The brake block prepared in embodiment 1-2 and comparative example 1-2 is carried out mechanical property, and the results are shown in Table 2：
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | |
| Impact strength (kJ.m-2) | 4.81 | 4.81 | 4.78 | 4.73 |
| Hardness (HRS) | 88 | 88 | 84 | 76 |
As shown in Table 2, the impact strength and hardness of the standby brake block of filled-type porous nano ceramic system are all higher than use
Brake block prepared by ceramic fibre is filled with silica since filled-type porous nano ceramics have pore passage structure in duct
Material, while nano-titanium dioxide being added during filled-type porous nano ceramic system is standby so that the brake block of preparation it is strong
Degree and hole impact force enhancing, simultaneously because filled-type porous nano ceramics are nanometer materials, grain size is smaller, can uniformly divide
It dissipates in rushing out in piece mixing material so that the brake pad material of preparation is uniform in material.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (10)
1. a kind of material of automotive brake pads, which is characterized in that include each component of following parts by weight：
8-13 parts of compound resin binder, 14-19 parts of filled-type porous nano ceramics, 4-7 parts of glass fibre, hollow glass microballoon
2-5 parts, charing 12-16 parts of stalk, 10-14 parts of steel fibre, 6-11 parts of copper powder, 2-5 parts of reduced iron powder, 3-8 parts of blanc fixe,
10-18 parts of crystalline flake graphite, 2-4 parts of molybdenum disulfide, 3-5 parts of mica.
2. a kind of material of automotive brake pads according to claim 1, which is characterized in that the compound resin binder
Preparation process is as follows：
(1) phenol is added in reaction vessel, is warming up to 50-60 DEG C of addition sodium hydroxide, is added after stirring and dissolving a certain amount of
37% formalin is warming up to 80-90 DEG C and is stirred to react 2-3h；
(2) after and then being uniformly mixed to the middle addition bisphenol A epoxide resin of step (1), the formaldehyde of addition a certain amount of 37% is molten
Liquid, is stirred to react after 1-2h to be added sucrose is added thereto, is stirred to react 3-4h, obtains compound resin binder.
3. a kind of material of automotive brake pads according to claim 2, which is characterized in that 1mol benzene in the step (1)
The amount that formalin is added in phenol is 1.56-1.63g.
4. a kind of material of automotive brake pads according to claim 2, which is characterized in that be added in the step (2) double
The amount of the substance of phenol A epoxy resin and the ratio between the amount of substance that phenol is added in step (1) are 0.37-0.41:1, while step
(2) amount that formaldehyde is added in is identical as the amount that formaldehyde in step (1) is added.
5. a kind of material of automotive brake pads according to claim 2, which is characterized in that sugarcane is added in the step (2)
The amount of the substance of sugar and the ratio between the amount that formaldehyde substance is added are 0.26-0.31:1.
6. a kind of material of automotive brake pads according to claim 1, which is characterized in that the filled-type porous nano pottery
The preparation process of porcelain is as follows：
(1) P123 is dissolved in deionized water, ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes a part of aluminum nitrate to be dissolved in deionized water, while being added after 1,3,5 trimethylbenzenes are uniformly mixed in 60-75
P123 solution is added dropwise at DEG C, after being added dropwise completely, persistently stirs 30-40min, obtains mixed colloidal solution, then by another part
Aluminum nitrate is dissolved in deionized water, is added after a certain amount of nano-titanium dioxide is uniformly mixed and is mixed after dissolving
Mixed solution is added in mixed colloidal solution solution, is stirred to react to colloidal solution change after clarifying the aging 12h at 110 DEG C,
Then it carries out drying roasting and obtains porous nano ceramic material；
(3) step 2 is prepared into porous nano ceramic material and Ludox is put into be stirred under vacuum in container and vacuumizes 30-50min, so
It is dried in 70-80 DEG C of microwave drying oven after taking out product afterwards, filled-type porous nano ceramics is made.
7. a kind of material of automotive brake pads according to claim 6, which is characterized in that 1gP123 in the step (1)
The middle amount that deionized water is added is 25-40mL, and the amount that ammonium hydroxide is added is 5-7mL.
8. a kind of material of automotive brake pads according to claim 6, which is characterized in that epoxy glue in the step (2)
The amount that deionized water is added in liquid solution in 1g aluminum nitrates is 10-12mL, and the quality that 1,3,5 trimethylbenzenes are added is 1.2-1.5g,
The amount that P123 solution is added is 22-25mL, while the amount that deionized water is added in step (2) in mixed solution in 1g aluminum nitrates is
10-12mL, the amount that nano-titanium dioxide is added are 0.01-0.03g.
9. a kind of material of automotive brake pads according to claim 6, which is characterized in that porous in the step (3) to receive
The mass ratio of rice ceramic material and Ludox is 1：1.2-1.4.
10. a kind of preparation method of the material of automotive brake pads according to claim 1, which is characterized in that specific to prepare
Process is as follows：
(1) filled-type porous nano ceramics, glass fibre, hollow glass microballoon, charing stalk and steel fibre are passed through into ball mill
Attrition grinding is for use after mixing；
(2) copper powder, reduced iron powder, blanc fixe, crystalline flake graphite, molybdenum disulfide and mica are added in the ball mill of step 1
It is fully ground mixing, obtains mixture；
(3) the brake block backboard of mixture and even spread compound resin binder feeding mold pressing procedure is processed, is processed
The blank obtained afterwards obtains automotive brake pads through Overheating Treatment and grinding process.
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