CN102994043A - Modified phenolic resin-based friction material - Google Patents
Modified phenolic resin-based friction material Download PDFInfo
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- CN102994043A CN102994043A CN 201210395844 CN201210395844A CN102994043A CN 102994043 A CN102994043 A CN 102994043A CN 201210395844 CN201210395844 CN 201210395844 CN 201210395844 A CN201210395844 A CN 201210395844A CN 102994043 A CN102994043 A CN 102994043A
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- modified phenolic
- friction material
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- based friction
- phenolic resin
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Abstract
The invention discloses a modified phenolic resin-based friction material, which is composed of the following raw materials in parts by weight: 20-40 parts of modified phenolic resin, 10-20 parts of viscose fibres, 10-20 parts of organic rigid chopped fibres, and 5-10 parts of friction regulator. The modified phenolic resin-based friction material is good in hardness, heat resistance, heat stability, water resistance and adhesion, and capable of lowering noise, and has promotion and use values.
Description
Technical field
The present invention relates to friction material field, particularly relate to a kind of modified alkyd resin based friction material.
Background technology
Existing friction materials generally includes several parts of caking agent, strongthener, frictional property regulator, filler and compound and forms, wherein caking agent generally adopts pure phenolic resin to do raw material, the shortcoming of its existence is: 1, poor heat resistance, heat decomposition temperature is low (to only have 350 ℃, cause the high temperature friction coefficient of friction materials to reduce rapidly, be not suitable for the production of high temperature friction sheet; 2, the cohesive strength of resin is low, causes the wear rate of friction goods high, and work-ing life is short; 3, the poor toughness of resin, vehicle can produce noise when brake, and the frangible rhegma of friction plate is bad; 4, free phenol content high (more than 5%), the friction plate compactness of producing is relatively poor.Such friction materials can not be met the need of market.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of have good hardness, thermotolerance, thermostability, water tolerance, cementability, can reduce the modified alkyd resin based friction material of noise.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of modified alkyd resin based friction material is provided, is comprised of the raw material of following weight part: modified phenolic resins 20-40 part, viscose fiber 10-20 part, organic firm matter staple fibre 10-20 part, friction regulator 5-10 part.
In a preferred embodiment of the present invention, described friction regulator is spherical activated alumina secondary aggregation thing.
In a preferred embodiment of the present invention, described modified phenolic resins is phenol-aralkyl ethers modified phenolic resins.
The beneficial effect of modified alkyd resin based friction material of the present invention is:
(1) have good resistance to elevated temperatures, even surpass the temperature self can bear, superficial charring and noncoking, the carbide that produces invests friction material surface, plays the lubrication as the friction powder;
(2) high, the good toughness of intensity significantly reduces the wear rate of friction materials, improves thermotolerance and shock resistance;
(3) play good buffering and rebound effect, can obtain the immediately effect of braking, and not damage antithesis, reduce noise;
(4) its fabulous dispersiveness and associativity drive other raw materials and evenly distribute, and have improved character of heat-fading and the hardness of friction materials;
(5) production, transportation, storage and use can not pollute ecotope, are a kind of environment-friendly type raw materials.
Embodiment
The below is described in detail preferred embodiment of the present invention, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
The embodiment of the invention comprises:
A kind of modified alkyd resin based friction material is comprised of the raw material of following weight part: modified phenolic resins 20-40 part, viscose fiber 10-20 part, organic firm matter staple fibre 10-20 part, friction regulator 5-10 part.
Viscose fiber cuts off and forms through viscose ripening, wet spinning technology manufacturing take the high-quality natural cellulose as raw material, characteristics with intensity height, good mechanical property, be used as the friction materials fortifying fibre, exchange frictional property and the void content of whole timber material, prevent that the vitrifaction of some material is obvious.
Organic firm matter staple fibre is the natural materials of selecting a kind of weave construction dense, repeatedly repeatedly soak steaming through manufacturing process, be processed into fine powder and at high temperature mix the high-quality wood fibre that the spray silk forms, have resistance to elevated temperatures, can reduce noise, play good lubrication.
Described friction regulator is spherical activated alumina secondary aggregation thing.Spherical activated alumina secondary aggregation thing is formed by a plurality of activated alumina particle coacervations.Under the environment of low temperature, low humidity, frictional coefficient sharply rises, and high-frequency cacophony occurs easily, and spherical activated alumina secondary aggregation thing can suppress the rapid rising of frictional coefficient, is not easy the phenomenon that pipes.Simultaneously, spherical activated alumina secondary aggregation thing can prevent that frictional coefficient from reducing, and the inhibition decline phenomenon occurs.
Described modified phenolic resins is phenol-aralkyl ethers modified phenolic resins.Phenol-aralkyl ethers modified phenolic resins claims again new resol, be macromolecular compound, produced by condensation reaction by phenol and aralkyl ethers that new phenolic resin bonded power is strong, chemical stability is good, thermotolerance is high, shrinks littlely during sclerosis, and product size is stable, cohesive strength improves more than 20% than resol, thermotolerance improves more than 100 ℃, and new Bakeland can be at life-time service below 250 ℃, and the goods moisture-proof is alkaline-resisting.
Embodiment 1:
A kind of modified alkyd resin based friction material is comprised of the raw material of following weight part: phenol-40 parts of aralkyl ethers modified phenolic resinss, 20 parts of viscose fibers, 20 parts on organic firm matter staple fibre, 10 parts of spherical activated alumina secondary aggregation things.
Embodiment 2:
A kind of modified alkyd resin based friction material is comprised of the raw material of following weight part: phenol-30 parts of aralkyl ethers modified phenolic resinss, 15 parts of viscose fibers, 15 parts on organic firm matter staple fibre, 5 parts of spherical activated alumina secondary aggregation things.
Embodiment 3:
A kind of modified alkyd resin based friction material is comprised of the raw material of following weight part: phenol-20 parts of aralkyl ethers modified phenolic resinss, 20 parts of viscose fibers, 10 parts on organic firm matter staple fibre, 10 parts of spherical activated alumina secondary aggregation things.
Compared with prior art, modified alkyd resin based friction material of the present invention has following advantage:
(1) have good resistance to elevated temperatures, even surpass the temperature self can bear, superficial charring and noncoking, the carbide that produces invests friction material surface, plays the lubrication as the friction powder;
(2) high, the good toughness of intensity significantly reduces the wear rate of friction materials, improves thermotolerance and shock resistance;
(3) play good buffering and rebound effect, can obtain the immediately effect of braking, and not damage antithesis, reduce noise;
(4) its fabulous dispersiveness and associativity drive other raw materials and evenly distribute, and have improved character of heat-fading and the hardness of friction materials;
(5) production, transportation, storage and use can not pollute ecotope, are a kind of environment-friendly type raw materials.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (3)
1. a modified alkyd resin based friction material is characterized in that, is comprised of the raw material of following weight part: modified phenolic resins 20-40 part, viscose fiber 10-20 part, organic firm matter staple fibre 10-20 part, friction regulator 5-10 part.
2. modified alkyd resin based friction material according to claim 1, it is characterized in that: described friction regulator is spherical activated alumina secondary aggregation thing.
3. modified alkyd resin based friction material according to claim 1, it is characterized in that: described modified phenolic resins is phenol-aralkyl ethers modified phenolic resins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210395844 CN102994043A (en) | 2012-10-18 | 2012-10-18 | Modified phenolic resin-based friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210395844 CN102994043A (en) | 2012-10-18 | 2012-10-18 | Modified phenolic resin-based friction material |
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| Publication Number | Publication Date |
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| CN102994043A true CN102994043A (en) | 2013-03-27 |
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| CN 201210395844 Pending CN102994043A (en) | 2012-10-18 | 2012-10-18 | Modified phenolic resin-based friction material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327800A (en) * | 2014-10-28 | 2015-02-04 | 山东中大药业有限公司 | Resin-based friction material for brake block and preparation process of resin-based friction material |
| CN104533997A (en) * | 2014-12-11 | 2015-04-22 | 来安县隆华摩擦材料有限公司 | Caron fiber reinforced friction plate |
| CN106397703A (en) * | 2016-09-08 | 2017-02-15 | 沈阳化工大学 | Aralkyl ether modified phenolic foam material |
| US11209063B2 (en) | 2016-11-02 | 2021-12-28 | Akebono Brake Industry Co., Ltd. | Friction material composition and friction material |
-
2012
- 2012-10-18 CN CN 201210395844 patent/CN102994043A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327800A (en) * | 2014-10-28 | 2015-02-04 | 山东中大药业有限公司 | Resin-based friction material for brake block and preparation process of resin-based friction material |
| CN104533997A (en) * | 2014-12-11 | 2015-04-22 | 来安县隆华摩擦材料有限公司 | Caron fiber reinforced friction plate |
| CN106397703A (en) * | 2016-09-08 | 2017-02-15 | 沈阳化工大学 | Aralkyl ether modified phenolic foam material |
| US11209063B2 (en) | 2016-11-02 | 2021-12-28 | Akebono Brake Industry Co., Ltd. | Friction material composition and friction material |
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Application publication date: 20130327 |