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A kind of organic fiber reinforced friction material and its preparation method

A technology of organic fibers and friction materials, applied in the field of friction materials, can solve the problems of skin allergy, redness, itching, etc., and achieve the effects of good oxidation resistance, excellent friction and wear performance, and excellent thermal friction performance.

Active Publication Date: 2018-11-09
HUBEI FEILONG FRICTION & SEALING MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the asbestos-free non-metallic friction material with glass fiber, artificial rock wool, and silicate mineral fiber as reinforcing fiber has high material strength and good thermal stability, it is easy to cause skin allergies and itching, and some are sensitive. People even have serious problems of redness, swelling and inflammation
[0003] Although some organic fibers are used in NAO friction materials, some ceramic fibers are also used in order to meet the requirements of material reinforcement and thermal stability, so there is also the problem of causing skin allergies

Method used

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  • A kind of organic fiber reinforced friction material and its preparation method
  • A kind of organic fiber reinforced friction material and its preparation method
  • A kind of organic fiber reinforced friction material and its preparation method

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Embodiment 1～3

[0039] An organic fiber reinforced friction material, the preparation method of which comprises the following steps:

[0040] 1) take each raw material according to the proportioning requirement described in Table 1;

[0041] 2) put the weighed raw material into the plow-rake type mixer and mix evenly to obtain the mixed raw material;

[0042] 3) Put the mixed raw materials in the mold for hot pressing; the pressure is 200kg / cm 2 , the temperature is 150°C, and the holding time is 5 minutes.

[0043]4) Place the molded product obtained in step 3) in an oven, heat from room temperature to 150°C for 1 hour, continue to heat up to 160°C for 1 hour, then heat up to 180°C for 6 hours; finally cool naturally to room temperature and take it out to obtain the organic Fiber reinforced friction material.

[0044] In the comparative example, polyacrylonitrile fiber and spun fiber were used to prepare the friction material. The ratio of the raw materials used is shown in Table 1, and t...

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Abstract

The invention discloses an organic fiber-enhanced friction material. The organic fiber-enhanced friction material comprises the following components in percentage by mass: 2%-4% of aramid fiber, 3%-6% of pre-oxidized fiber, 4%-8% of rubber powder, 8%-14% of resin, 3%-6% of aluminum oxide, 5%-10% of graphite, 5%-10% of a modifier and 50%-60% of fillers. Adopted enhancing fibers are organic fibers and are matched with other functional components to prepare the novel organic fiber-enhanced friction material by virtue of the properties of the aramid fiber and the pre-oxidized fiber, and the organic fiber-enhanced friction material is totally different from existing non-asbestos friction materials, semimetal friction materials or NAO type friction materials, so that the problem of skin sensibility caused by penetration of fibers of the friction material into skin is avoided based on the properties of the adopted fibers, and the problem which has puzzled the friction material industry over the years is solved; and meanwhile, the organic fiber-enhanced friction material can meet each required performance requirement of the friction material and has multiple characteristics of excellent frictional wear performance, environmental friendliness, no rust and the like.

Description

technical field [0001] The invention relates to a friction material used in the field of automobile and mechanical transmission and braking, in particular to an organic fiber reinforced friction material and a preparation method thereof. Background technique [0002] Friction material is a kind of composite material, which is composed of skeleton fiber, adhesive, performance modifier and filler. Reinforcing fiber is a necessary skeleton raw material for friction material composite materials. According to the fibers used, it can be divided into three categories: asbestos-based friction material , Semi-metallic friction material, non-asbestos non-metallic friction material. However, asbestos fibers may cause cancer, and the semi-metallic friction material has the disadvantages of being easy to rust and damage the friction couple. Asbestos-free non-metallic friction materials with glass fibers, artificial rock wool, and silicate mineral fibers as the main reinforcing fibers ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14
CPCC09K3/149
Inventor 范良辉马艳兵
Owner HUBEI FEILONG FRICTION & SEALING MATERIALS
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