CN108250667A - A kind of wear-resisting brake friction material and preparation method thereof - Google Patents
A kind of wear-resisting brake friction material and preparation method thereof Download PDFInfo
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- CN108250667A CN108250667A CN201810071867.4A CN201810071867A CN108250667A CN 108250667 A CN108250667 A CN 108250667A CN 201810071867 A CN201810071867 A CN 201810071867A CN 108250667 A CN108250667 A CN 108250667A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/02—Copolymers with acrylonitrile
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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Abstract
The invention belongs to brake friction material fields, disclose a kind of wear-resisting brake friction material and preparation method thereof.By weight, 15~24 parts of basalt fibre, 5~16 parts of mullite, 2~6 parts of graphene, 10~18 parts of silicon carbide, 10~18 parts of monocrystalline silicon are less than 50 mesh through mixed grinding to granularity, then it adds in 0.5~5 part of silane coupling agent to be stirred to react, obtains silane-modified mixed powder；Then the silane-modified mixed powder of gained is uniformly mixed with 10~20 parts of phenolic resin and 4~12 parts of nitrile rubbers, hot-press solidifying molding obtains the wear-resisting brake friction material.The present invention is modified reinforcing material and filler ingredient by adding in silane coupling agent, and adds in silicon carbide and mullite as reinforcing agent, is remarkably improved the wear-resisting property of material.
Description
Technical field
The invention belongs to brake friction material fields, and in particular to a kind of wear-resisting brake friction material and preparation method thereof.
Background technology
Brake friction material be it is a kind of apply on dynamic power machine, perform braking and transmission agency by rubbing action
Component materials.Common brake friction material is a kind of macromolecule trielement composite material, is physics and chemical complex.It is by
High polymer binder (resin and rubber), reinforcing fiber and frictional property regulator three categories composition and other compounding agents are formed,
A series of manufactured product through production and processings.The characteristics of friction material is that have good friction coefficient and abrasion resistance properties,
There is certain heat resistance and mechanical strength simultaneously, the performance requirement of the transmission and braking of vehicle or machinery can be met.Their quilts
It is widely used on all kinds of engineering mechanical devices such as vehicular traffic, oil-well rig；Also transmission that can be as power or braking deceleration
With indispensable material.Using automotive brake friction material as representative, following developing stage substantially experienced：First rank
The friction material that section is manufactured with asbestos fibre filled phenolic resin, wherein asbestos are made by silicate mineral, are contained in composition
There are a certain number of crystallizations water.The raising of Hyundai Motor speed makes brake component surface temperature be up to 300~500 DEG C.Asbestos rub
Material thermal conductivity and poor heat resistance are wiped, will lose the crystallization water at 400 DEG C or so, the crystallization water completely loses at 550 DEG C, mistake substantially
Go enhancing effect.It can cause that frictional property is unstable, working layer goes bad, abrasion aggravate after asbestos dehydration, occur significantly " hot
Decline " phenomenon.In addition asbestos its dust in processing, use has carcinogenesis, the use of such material is limited.Second generation vapour
Vehicle brake friction material system semimetal graphite composite material.Its main component is steel fibre, graphite, metal powder and its auxiliary material, is used
Phenol-formaldehyde resin modified molding bonded is gained the name due to tenor accounts for the half of gross weight in brake block.U.S., Europe, day etc., country was 60
Age starts to be widely used to promote.The wear-resisting property of semimetal piece improves more than 25% than sheet asbestos, while has friction coefficient
High, the advantages that thermal conductivity is good, machine-shaping is easy, therefore such material is occupied an leading position in the market in China's brake block at present.
But product also has the following disadvantages：Steel fibre easily gets rusty, easily adhesion or easy damaged antithesis, and product strength drops after corrosion after corrosion
Low, abrasion increases；Pyroconductivity is high, and braking system is easily made to generate vapour lock at high temperature leads to rub lamella and steel plate disengagement；Firmly
Degree is higher, can damage mating material, generates chatter and low-frequency brake noise；Density is big.Third generation automotive brake friction material system
Without asbestos organic friction material (NAO).Mainly use glass fibre, aromatic series polyamides fiber or other fibers (carbon, ceramics etc.)
It is used as reinforcement material, major advantage is all to keep good braking effect in low temperature or high temperature, reduces abrasion, reduces
Noise extends the service life of brake disc.The material of NAO type brake blocks has been subjected to change several times, and existing NAO materials are all multi-party
Face has effectively been more than the performance of asbestos brake piece, but NAO materials are still using resin base as Binder Phase, by high temperature friction
Afterwards, the decomposition relative increase of resin, causes friction coefficient to decline to a great extent, and heat fading phenomenon occurs for material.Simultaneously as resin
A large amount of thermal decompositions reduce its cementation, thus material abrasion aggravation, thermal oxide serious wear.
Invention content
In place of above shortcoming and defect of the existing technology, primary and foremost purpose of the invention is to provide a kind of wear-resisting
Brake friction material.
Another object of the present invention is to provide the preparation method of above-mentioned wear-resisting brake friction material.
The object of the invention is achieved through the following technical solutions：
A kind of wear-resisting brake friction material includes the component of following parts by weight：
The preferred carborundum porous ceramics of the silicon carbide.
The silane coupling agent is preferably amino silicane coupling agent or isocyanato silanes coupling agent.
The preparation method of above-mentioned wear-resisting brake friction material, including following preparation process：
(1) basalt fibre, mullite, graphene, silicon carbide, monocrystalline silicon are less than 50 mesh through mixed grinding to granularity,
Then it adds in silane coupling agent to be stirred to react, obtains silane-modified mixed powder；
(2) mixed powder silane-modified obtained by step (1) is mixed with phenolic resin particle and nitrile rubber particle
Even, hot-press solidifying molding obtains the wear-resisting brake friction material.
Preferably, the process that mixed grinding described in step (1) and addition silane coupling agent are stirred to react is in the ball mill
It carries out, the specific steps are：Basalt fibre, mullite, graphene, silicon carbide, monocrystalline silicon are added in ball mill, are milled to
Granularity is less than 50 mesh, then adds in the silane coupling agent of ethyl alcohol dissolving, carries out wet ball-milling reaction, second is removed after the completion of reaction
Alcohol obtains silane-modified mixed powder.
Preferably, the molding actual conditions of hot-press solidifying described in step (2) are：150~180 DEG C of temperature, pressure 18
~36MPa.
Relative to the prior art, the invention has the advantages that and advantageous effect：
(1) friction material of the invention using basalt fibre as reinforcing fiber, be not easy to get rusty, high-temperature thermal stability
The advantages of property is good.
(2) present invention adds in mullite as filler ingredient, and mullite is a kind of Al of stabilization2O3-SiO2It is binary solid solution
Body has identical main component with basalt fibre, can further cooperate with the humidification of military rock fiber, significantly improve and rub
Wipe the wear-resisting property of material.
(3) present invention reinforcing material and filler ingredient are modified by adding in silane coupling agent, hot-press solidifying into
During type, amino or isocyanate group isoreactivity group in silane coupling agent can be with the hydroxyls in phenolic resin and nitrile rubber
Base or cyano carry out cross-linking reaction, significantly increase binding force of the resin component to reinforcing material and filler, so as to enhance friction
The thermal stability and wearability of material.
(4) present invention can be further using carborundum porous ceramics as reinforcing agent, the porous knot of carborundum porous ceramics
Structure can provide the micro-pore for absorbing energy, improve the toughness of friction material；The porous structure of carborundum porous ceramics simultaneously
The combination specific surface between each component is further improved, is further improved in hot-press solidifying forming process between material component
Binding force, so as to enhance the wearability of friction material.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of preparation method of wear-resisting brake friction material of the present embodiment, specific preparation process are as follows：
(1) by weight, by 24 parts of basalt fibre, 16 parts of Mullite Powder, 2 parts of graphene, 10 parts of carborundum powder,
18 parts of monocrystalline silica flour is added in ball mill, is milled to granularity less than 50 mesh, is then added in 5 parts of three second of aminopropyl of ethyl alcohol dissolving
Oxysilane carries out wet ball-milling reaction, removes ethyl alcohol after the completion of reaction, obtain silane-modified mixed powder.
(2) by mixed powder and 18 parts of phenolic resin particles silane-modified obtained by step (1) and 7 parts of nitrile rubber particles
It is uniformly mixed, is put into hot pressing die, is warming up to 160 DEG C of temperature, hot-press solidifying is molded under conditions of pressure is 20MPa, is obtained
To the wear-resisting brake friction material.
Embodiment 2
A kind of preparation method of wear-resisting brake friction material of the present embodiment, specific preparation process are as follows：
(1) by weight, 24 parts of basalt fibre, 16 parts of Mullite Powder, 2 parts of graphene, silicon carbide porous are made pottery
10 parts of porcelain (prepared by the method that the carborundum porous ceramics can refer to disclosed in patent CN 102807391A), monocrystalline silicon
18 parts of powder is added in ball mill, is milled to granularity less than 50 mesh, is then added in 5 parts of aminopropyl-triethoxy silicon of ethyl alcohol dissolving
Alkane carries out wet ball-milling reaction, removes ethyl alcohol after the completion of reaction, obtain silane-modified mixed powder.
(2) by mixed powder and 18 parts of phenolic resin particles silane-modified obtained by step (1) and 7 parts of nitrile rubber particles
It is uniformly mixed, is put into hot pressing die, is warming up to 160 DEG C of temperature, hot-press solidifying is molded under conditions of pressure is 20MPa, is obtained
To the wear-resisting brake friction material.
Embodiment 3
A kind of preparation method of wear-resisting brake friction material of the present embodiment, specific preparation process are as follows：
(1) by weight, 15 parts of basalt fibre, 10 parts of Mullite Powder, 6 parts of graphene, silicon carbide porous are made pottery
18 parts of porcelain (prepared by the method that the carborundum porous ceramics can refer to disclosed in patent CN 102807391A), monocrystalline silicon
18 parts of powder is added in ball mill, is milled to granularity less than 50 mesh, is then added in 3 parts of 3- isocyanate group propyl of ethyl alcohol dissolving
Triethoxysilane carries out wet ball-milling reaction, removes ethyl alcohol after the completion of reaction, obtain silane-modified mixed powder.
(2) by mixed powder and 20 parts of phenolic resin particles silane-modified obtained by step (1) and 10 parts of nitrile rubbers
Grain is uniformly mixed, and is put into hot pressing die, is warming up to 150 DEG C of temperature, and hot-press solidifying is molded under conditions of pressure is 30MPa,
Obtain the wear-resisting brake friction material.
Embodiment 4
A kind of preparation method of wear-resisting brake friction material of the present embodiment, specific preparation process are as follows：
(1) by weight, 20 parts of basalt fibre, 12 parts of Mullite Powder, 5 parts of graphene, silicon carbide porous are made pottery
15 parts of porcelain (prepared by the method that the carborundum porous ceramics can refer to disclosed in patent CN 102807391A), monocrystalline silicon
18 parts of powder is added in ball mill, is milled to granularity less than 50 mesh, is then added in 2 parts of 3- isocyanate group propyl of ethyl alcohol dissolving
Triethoxysilane carries out wet ball-milling reaction, removes ethyl alcohol after the completion of reaction, obtain silane-modified mixed powder.
(2) by mixed powder and 16 parts of phenolic resin particles silane-modified obtained by step (1) and 12 parts of nitrile rubbers
Grain is uniformly mixed, and is put into hot pressing die, is warming up to 180 DEG C of temperature, and hot-press solidifying is molded under conditions of pressure is 18MPa,
Obtain the wear-resisting brake friction material.
Comparative example 1
A kind of preparation method of brake friction material of this comparative example, specific preparation process are as follows：
(1) by weight, by 24 parts of basalt fibre, 16 parts of Mullite Powder, 2 parts of graphene, 10 parts of carborundum powder,
18 parts of combined grindings of monocrystalline silica flour to granularity is less than 50 mesh, obtains mixed powder.
(2) mixed powder obtained by step (1) is uniformly mixed with 18 parts of phenolic resin particles and 7 parts of nitrile rubber particles,
It is put into hot pressing die, is warming up to 160 DEG C of temperature, hot-press solidifying is molded under conditions of pressure is 20MPa, obtains the braking
Friction material.
Wear-resisting property test is carried out to brake friction material obtained by above example and comparative example, test is using MM1000-
III type friction wear testing machine carries out friction-wear test, and sample radius is 5cm, and sample is carried out with the rotating speed of 6000r/min
Friction-wear test measures the wear rate of material, and the results are shown in Table 1.
Table 1
| Wear rate | |
| Embodiment 1 | 0.9% |
| Embodiment 2 | 0.1% |
| Embodiment 3 | 0.15% |
| Embodiment 4 | 0.2% |
| Comparative example 1 | 1.8% |
The present invention is modified mixed powder by silane coupling agent it can be seen from 1 result of table, is remarkably improved system
The wear-resisting property of dynamic friction material.And by using carborundum porous ceramics as reinforcing filler, compared to common carborundum powder,
The wear-resisting property of gained brake friction material has obtained further raising.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (6)
1. a kind of wear-resisting brake friction material, it is characterised in that the brake friction material includes the component of following parts by weight：
2. a kind of wear-resisting brake friction material according to claim 1, it is characterised in that：The silicon carbide refers to be carbonized
Silicon porous ceramics.
3. a kind of wear-resisting brake friction material according to claim 1, it is characterised in that：The silane coupling agent refers to
Amino silicane coupling agent or isocyanato silanes coupling agent.
4. a kind of preparation method of wear-resisting brake friction material of claims 1 to 3 any one of them, it is characterised in that including such as
Lower preparation process：
(1) basalt fibre, mullite, graphene, silicon carbide, monocrystalline silicon are less than 50 mesh through mixed grinding to granularity, then
It adds in silane coupling agent to be stirred to react, obtains silane-modified mixed powder；
(2) mixed powder silane-modified obtained by step (1) is uniformly mixed with phenolic resin particle and nitrile rubber particle, heat
Cured molding obtains the wear-resisting brake friction material.
5. a kind of preparation method of wear-resisting brake friction material according to claim 4, it is characterised in that：In step (1)
The process that the mixed grinding and addition silane coupling agent are stirred to react carries out in the ball mill, the specific steps are：By basalt
Fiber, mullite, graphene, silicon carbide, monocrystalline silicon are added in ball mill, are milled to granularity less than 50 mesh, are then added in second
The silane coupling agent of alcohol dissolving carries out wet ball-milling reaction, removes ethyl alcohol after the completion of reaction, obtain silane-modified mixed powder
Body.
6. a kind of preparation method of wear-resisting brake friction material according to claim 4, it is characterised in that：In step (2)
The molding actual conditions of hot-press solidifying are：150~180 DEG C of temperature, pressure are 18~36MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810071867.4A CN108250667B (en) | 2018-01-25 | 2018-01-25 | Wear-resistant brake friction material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810071867.4A CN108250667B (en) | 2018-01-25 | 2018-01-25 | Wear-resistant brake friction material and preparation method thereof |
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| CN108250667B CN108250667B (en) | 2020-04-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679162A (en) * | 2018-11-30 | 2019-04-26 | 长春安旨科技有限公司 | A kind of water lubricating bearing material and preparation method thereof |
| CN113278212A (en) * | 2021-05-21 | 2021-08-20 | 华东理工大学 | Polymer sliding material for bridge support and preparation method thereof |
| CN114736485A (en) * | 2022-04-14 | 2022-07-12 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
| CN115974523A (en) * | 2022-12-09 | 2023-04-18 | 湖北飞龙摩擦密封材料股份有限公司 | Porous mullite for friction material and preparation method and application thereof |
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|---|---|---|---|---|
| US20040140167A1 (en) * | 2003-01-16 | 2004-07-22 | Xinming Shao | Brake friction material including titanium dioxide particles |
| CN102618215A (en) * | 2012-02-23 | 2012-08-01 | 重庆红宇摩擦制品有限公司 | Regenerated automobile braking friction material and preparation method thereof |
| CN107542816A (en) * | 2017-08-15 | 2018-01-05 | 杭州西湖摩擦材料有限公司 | A kind of wear-resisting no metal brake block of low noise |
-
2018
- 2018-01-25 CN CN201810071867.4A patent/CN108250667B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040140167A1 (en) * | 2003-01-16 | 2004-07-22 | Xinming Shao | Brake friction material including titanium dioxide particles |
| CN102618215A (en) * | 2012-02-23 | 2012-08-01 | 重庆红宇摩擦制品有限公司 | Regenerated automobile braking friction material and preparation method thereof |
| CN107542816A (en) * | 2017-08-15 | 2018-01-05 | 杭州西湖摩擦材料有限公司 | A kind of wear-resisting no metal brake block of low noise |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679162A (en) * | 2018-11-30 | 2019-04-26 | 长春安旨科技有限公司 | A kind of water lubricating bearing material and preparation method thereof |
| CN113278212A (en) * | 2021-05-21 | 2021-08-20 | 华东理工大学 | Polymer sliding material for bridge support and preparation method thereof |
| CN114736485A (en) * | 2022-04-14 | 2022-07-12 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
| CN114736485B (en) * | 2022-04-14 | 2023-09-19 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
| CN115974523A (en) * | 2022-12-09 | 2023-04-18 | 湖北飞龙摩擦密封材料股份有限公司 | Porous mullite for friction material and preparation method and application thereof |
| CN115974523B (en) * | 2022-12-09 | 2024-02-20 | 湖北飞龙摩擦密封材料股份有限公司 | Porous mullite for friction material and preparation method and application thereof |
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