CN108412925B - 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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- CN108412925B CN108412925B CN201810231508.0A CN201810231508A CN108412925B CN 108412925 B CN108412925 B CN 108412925B CN 201810231508 A CN201810231508 A CN 201810231508A CN 108412925 B CN108412925 B CN 108412925B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Compositions 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
Abstract
The invention discloses a kind of material of automotive brake pads, each component including 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, 2-5 parts of hollow glass microballoon, charing stalk 12-16 parts, 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.Existing ceramic fibre is substituted containing filled-type porous nano ceramics in brake block of the invention, 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 mechanical strength, wear-resisting property and heating conduction with higher compared with ceramic fibre, so that the stable friction factor at high temperature and wear rate of brake block are lower.
Description
Technical field
The invention belongs to automobile production fields, are related to the material and its material preparation method of a kind of automotive brake pads.
Background technique
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.
Currently, the brake block 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
The braking of car high-speed cruising.
(2) semimetal base brake block: the formula of semi-metallic brake pad is mainly by steel fibre as framework material, phenolic aldehyde tree
Rouge adds the multi-element composite material composition of various functional fillers as anti-wear agent as adhesive, iron powder.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 specific gravity 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 heating conduction 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, thus safety when seriously affecting 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
Matrix, is added various functional fillers, then plus phenolic resin 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, the wheel of car is easily shaken when high speed is braked, thus seriously
Influence the comfort of vehicle braking.
Existing brake block much uses ceramic fibre material to prepare, and the brake block coefficient of friction of preparation is high and at high temperature
Wear rate is low, but the automobile for running at high speed is at relatively high temperatures, and simple ceramic brake is not able to satisfy brake block
Braking quality and wear rate demand, and higher cost cumbersome especially for replacement automotive brake pads for superior automobile.
Summary of the invention
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 mechanical strength, wear-resisting property and heating conduction with higher compared with ceramic fibre, so that stopping
The stable friction factor at high temperature and wear rate of vehicle piece are lower.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of material of automotive brake pads, each component including 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, charing stalk 12-16 parts, 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 then addition bisphenol A epoxide resin is uniformly mixed into 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；
It is added in the step (2) in the amount and step (1) of the substance of bisphenol A epoxide resin and the amount of the substance of phenol is added
The ratio between be 0.37-0.41:1, while in step (2) formaldehyde be added amount in step (1) formaldehyde addition amount it is identical；
The amount of the substance of sucrose is added in the step (2) and the ratio between the amount of formaldehyde substance is added as 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 dissolution
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 silica solution is put into be stirred under vacuum in container and vacuumizes 30-
50min enters silica solution 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 duct in silica solution, so that the silica in silica solution remains in duct, be made
Filled-type porous nano ceramics, the material have high-intensitive and high thermal conductivity 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 nitrate 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 nitrate 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 silica solution is 1:1.2-1.4 in the step (3)；
The preparation process of the charing stalk are as follows:
(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 smashed and ground again to partial size less than 10 mesh, the charcoal of 10 mesh is greater than for partial size
Change stalk and be crushed to partial 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 material of automotive brake pads the preparation method 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 smashing and grinding is stand-by 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 brake block of the 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 is with higher mechanical strong compared with ceramic fibre
Degree, wear-resisting property and heating conduction, so that the stable friction factor at high temperature and wear rate of brake block are lower.
The filled-type porous nano ceramics that the present invention contains in brake block are nanometer materials, and partial 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 be adequately by free aldehyde and free phenol fully reacting, 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 charing stalk material preparation, can not only realize waste straw
Reasonable utilization, simultaneously because charing stalk in organic matter and impurity component by sulfuric acid be acidified 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 embodiment
Embodiment 1:
A kind of material of automotive brake pads the preparation method is as follows:
(1) by 1.4kg filled-type porous nano ceramics, 0.4kg glass fibre, 0.2kg hollow glass microballoon, 1.2kg charcoal
It is stand-by after mixing by ball mill smashing and grinding to change stalk and 1kg steel fibre；
(2) by 0.6kg copper powder, 0.2kg reduced iron powder, 0.3kg blanc fixe, 1kg crystalline flake graphite, 0.2kg curing
Molybdenum and 0.3kg mica are added in the ball mill of step 1 and are fully ground mixing, obtain mixture；
(3) the brake block backboard of mixture and even spread 0.8Kg compound resin binder 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, stirred 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 then into step (1), addition 3.72kg bisphenol A epoxide resin is uniformly mixed, 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 water, 5L ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes 0.368kg aluminum nitrate to be dissolved in 3.7L deionized water, 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 nitrate is dissolved in 3.7L deionized water, 3.68g nano-titanium dioxide is added after dissolution and is 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) porous nano ceramic material 0.5kg and the 0.6kg silica solution for taking step 2 to prepare, which is put into, to be stirred under vacuum in container
30-50min is vacuumized, enters silica solution 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 duct in silica solution is removed, so that the silica in silica solution remains in hole
In road, filled-type porous nano ceramics are made, which has high-intensitive and high thermal conductivity wearability.
The preparation process of the charing stalk are as follows:
(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 stalk crushed is 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 smashed and ground again to partial size less than 10 mesh, the charcoal of 10 mesh is greater than for partial size
Change stalk and be crushed to partial 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 material of automotive brake pads the preparation method is as follows:
(1) by 1.9kg filled-type porous nano ceramics, 0.7kg glass fibre, 0.5kg hollow glass microballoon, 1.6kg charcoal
It is stand-by after mixing by ball mill smashing and grinding to change stalk and 1.4kg steel fibre；
(2) by 1.1kg copper powder, 0.5kg reduced iron powder, 0.8kg blanc fixe, 1.8kg crystalline flake graphite, bis- sulphur of 0.4kg
Change in molybdenum and the ball mill of 0.5kg mica addition step 1 and be fully ground mixing, obtains mixture (3) and applied by mixture and uniformly
The brake block backboard of cloth 1.3Kg compound resin binder is sent into mold pressing procedure and is processed, and the blank obtained after processing is through overheating
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, stirred 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 then into step (1), addition 4.11kg bisphenol A epoxide resin is uniformly mixed, 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 water, 7L ammonium hydroxide is then added and is prepared into P123 solution；
(2) it takes 0.545kg aluminum nitrate to be dissolved in 6.2L deionized water, 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 nitrate is dissolved in 6.2L deionized water, it is mixed that the stirring of 16.35g nano-titanium dioxide is added after dissolution
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) porous nano ceramic material 0.6kg and the 0.84kg silica solution for taking step 2 to prepare, which is put into, to be stirred under vacuum in container
30-50min is vacuumized, enters silica solution 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 duct in silica solution is removed, so that the silica in silica solution remains in hole
In road, filled-type porous nano ceramics are made, which has high-intensitive and high thermal conductivity wearability.
The preparation process of the charing stalk are as follows:
(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 stalk crushed is 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 smashed and ground again to partial size less than 10 mesh, the charcoal of 10 mesh is greater than for partial size
Change stalk and be crushed to partial 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
Rouge.
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, as the temperature rises, the friction coefficient temperature of the standby brake block of filled-type porous nano ceramic system
The change rate of coefficient of friction 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 lower；The brake block prepared simultaneously by compound resin binder is due to being added bisphenol A epoxide resin in binder
Epoxy resin and sucrose can adequately by free aldehyde and free phenol fully reacting, 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 larger than use
The brake block of ceramic fibre preparation is filled with silica in duct since filled-type porous nano ceramics have cellular structure
Material, while nano-titanium dioxide is added during filled-type porous nano ceramic system is standby, so that the brake block of preparation is strong
Degree and hole impact force enhancing, simultaneously because filled-type porous nano ceramics are nanometer materials, partial 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 better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand 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 each component including 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 stalk 12-16 parts, 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；
Filled-type porous nano ceramics are filled composite earth silicon materials in the duct by porous nano ceramic material, while
Nano-titanium dioxide preparation is added in porous nano ceramic material production process.
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 then into step (1), addition bisphenol A epoxide resin is uniformly mixed, 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 ratio between amount of substance of phenol is added in the amount of the substance of phenol A epoxy resin and step (1) as 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 ratio between the amount of the substance of sugar and 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 dissolution
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 silica solution is put into be stirred under vacuum in container and vacuumizes 30-50min,
It is dried in 70-80 DEG C of microwave drying oven after then taking out product, 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 nitrate 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 nitrate is
10-12mL, the amount that nano-titanium dioxide is added is 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 silica solution 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 preparation
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
It smashes and grinds stand-by after mixing；
(2) copper powder, reduced iron powder, blanc fixe, crystalline flake graphite, molybdenum disulfide and mica are added to the ball mill of step (1)
In be fully ground mixing, obtain 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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| WO2020056574A1 (en) * | 2018-09-18 | 2020-03-26 | 江苏金麦穗新能源科技股份有限公司 | Brake pad and method for manufacturing damping rubber |
| CN109079133B (en) * | 2018-10-31 | 2021-04-02 | 长春工业大学 | Brake friction sheet material with high stable friction coefficient and preparation method thereof |
| CN111089132A (en) * | 2019-12-26 | 2020-05-01 | 大冶市启发矿产品有限公司 | Friction material and preparation method thereof |
| CN112625458B (en) * | 2020-12-11 | 2022-09-09 | 黄山菲英汽车零部件有限公司 | High-performance automobile brake pad friction material and brake pad thereof |
| CN112594310A (en) * | 2020-12-29 | 2021-04-02 | 山东金力新材料科技股份有限公司 | Preparation method of ceramic alloy composite wear-resistant material for brake pad |
| CN113121881A (en) * | 2021-03-03 | 2021-07-16 | 宁波恩派新材料科技有限公司 | Density-reducing and hardness-increasing filler for latex foam products, preparation method and application thereof |
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