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Friction material composition and friction material for preparing brake pad

A friction material and composition technology, applied in the field of friction material composition and friction material, can solve problems such as unstable friction coefficient

Active Publication Date: 2009-12-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome the defect of unstable friction coefficient at high temperature of the existing friction materials used to prepare brake pads, and to provide a friction material used to prepare brake pads with stable friction coefficient at high temperature. Composition and friction material prepared from the friction material composition

Method used

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  • Friction material composition and friction material for preparing brake pad

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preparation example Construction

[0028] The present invention has no particular limitation on the preparation method of the composition, as long as the binder, reinforcing material, friction enhancer, lubricant and filler are mixed uniformly. The types of the components added during mixing are the same as the corresponding components above, and will not be described here. The mixing conditions and equipment are well known to those skilled in the art, for example, the JF810SJ model pear rake mixer produced by Jilin University Electromechanical Equipment Research Institute can be used for mixing, and the mixing conditions include that the mixing temperature can be At 0-30°C, the mixing time can be 10-30 minutes, preferably 10-20 minutes.

[0029] The present invention also provides a friction material for preparing a brake pad, the friction material is obtained by heat treatment after hot pressing of a friction material composition, wherein the composition is the friction material composition provided by the pr...

Embodiment 1

[0034] This example is used to illustrate the friction material composition and friction material for preparing the brake pad provided by the present invention.

[0035] (1) Preparation of friction material composition for preparing brake pads

[0036] 14 parts by weight of cashew nut shell oil and nitrile-butadiene rubber double-modified phenolic resin (KT-3640CRA model of Kunyi resin material company, the average particle diameter is 60 microns, wherein, cashew nut shell oil and nitrile-butadiene rubber double-modified phenolic resin are prepared. At the time, the weight ratio of the consumption of cashew nut shell oil and nitrile rubber and phenolic resin is 0.04: 0.04: 1), 10 parts by weight of steel fibers (Dazheng Metal Fiber Co., Ltd., D1-80, the average diameter is 150 microns, the average length 0.3 cm), 5 parts by weight of copper fiber (Dazheng Metal Fiber Co., Ltd., DT1-99, average diameter of 150 microns, average length of 0.3 cm), 10 parts by weight of composite ...

Embodiment 2

[0046] This example is used to illustrate the friction material composition and friction material for preparing the brake pad provided by the present invention.

[0047] 7 parts by weight of cashew nut shell oil and nitrile-butadiene rubber double-modified phenolic resin (KT-3640CRB model of Kunyi resin material company, the average particle diameter is 40 microns, wherein, prepare cashew nut shell oil and nitrile-butadiene rubber double-modified phenolic resin. When the weight ratio of the consumption of cashew nut shell oil and nitrile rubber and phenolic resin is 0.05: 0.08: 1), 3 parts by weight of epoxy resin (Shengquan Chemical Co., Ltd., PF6400-A, the average particle diameter is 40 microns) , 10 parts by weight of iron fibers (Dazheng Metal Fiber Co., Ltd., with an average diameter of 100 microns and an average length of 0.1 cm), 8 parts by weight of aluminum fibers (Dazheng Metal Fiber Co., Ltd., DA-#000, with an average diameter of 100 microns) , the average length i...

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Abstract

The invention provides a friction material composition for preparing a brake pad. The composition contains binding agent, reinforced materials, friction increase agent, lubricating agent and filler, wherein the binding agent contains the binary modified phenolic resin of cashew nut shell oil and chemigum. The invention also provides a friction material for preparing the brake pad. The friction material is obtained in such a way that the friction material composition carries out heat treatment after being molded by hot press, wherein the friction material composition is provided by the invention. The friction material composition for preparing the brake pad can obviously improve the stability of the friction coefficient of the friction material.

Description

technical field [0001] The invention relates to a friction material composition for preparing automobile brake pads and a friction material prepared from the friction material composition. Background technique [0002] With the rapid development of the automobile industry, the number of automobiles is also continuously expanding. In 2006, China's automobile industry realized the sales of 7.216 million automobiles. Automobile brake pads, as a key component of the automobile braking system, need to meet the requirements of safe and reliable braking, smooth and noiseless operation. At present, semi-metal brake pads occupy a large market share in the domestic auto market. In the domestic original equipment market, European cars mostly use semi-metal or low-metal brake pads, and most American and Japanese cars use ceramic brake pads. Self-owned brands are mainly semi-metal brake pads. Metal brake pads. Among the export brake pads, more than 60% are semi-metal brake pads, and le...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08K13/04C08J5/14B29C43/02B29L31/30
Inventor 旷文敏候振宇王胜杰
Owner BYD CO LTD
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