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A kind of heat-resistant modified bamboo fiber and its method for automobile brake friction material

A heat-resistant modification and automobile braking technology, applied in the field of materials science, can solve the problems of friction plate breakage, brake lock, scratch duality, etc., and achieve the advantages of reducing production costs, stabilizing braking performance, and stabilizing friction performance at room temperature. Effect

Inactive Publication Date: 2011-12-28
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as technology is concerned, there are still many problems to be solved in the whole industry, such as noise, scream, reliability, brake lock, scratched couple, friction plate fracture, high temperature recession and poor recovery. Materials are also spontaneously developing in the direction of energy saving and environmental protection, such as no asbestos, no metal, less fiber, less resin and nano-materials

Method used

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  • A kind of heat-resistant modified bamboo fiber and its method for automobile brake friction material
  • A kind of heat-resistant modified bamboo fiber and its method for automobile brake friction material
  • A kind of heat-resistant modified bamboo fiber and its method for automobile brake friction material

Examples

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Effect test

Embodiment 1

[0021] Embodiment one (preferred embodiment)

[0022] Add 290 ml of aqueous solution in a 500 ml beaker, add 10 grams of borax, start stirring and heat to 80°C to completely dissolve borax. Immerse 5 grams of bamboo fiber in the borax solution, take it out after 20 minutes, and dry it at 80° C. for 1 hour to obtain heat-resistant modified bamboo fiber. Take the following ingredients and proportions to make friction materials: 7 parts of heat-resistant modified bamboo fiber, 7 parts of anhydrous calcium sulfate whisker, 13 parts of basic magnesium sulfate whisker, 17 parts of phenolic resin, 10 parts of copper powder, and 3 parts of graphite powder , 15 parts of barite powder, 10 parts of alumina powder, 8 parts of cast iron powder, 12 parts of feldspar powder, and 3 parts of tire powder. Then put the phenolic resin on 60 DEG C and dry for 0.5 hour, place the other raw materials except the modified bamboo fiber in the baking oven and dry at 120 DEG C for 1 hour; Stir and bl...

Embodiment 2

[0023] Embodiment 2 (preferred embodiment)

[0024] Add 300 ml of aqueous solution in a 500 ml beaker, add 12 grams of borax, start stirring and heat to 100°C to completely dissolve borax. Immerse 5 grams of bamboo fiber in the borax solution, take it out after 26 minutes, and dry it at 100°C for 40 minutes to obtain heat-resistant modified bamboo fiber. Take the following composition proportions and make friction materials according to the above process steps: 13 parts of heat-resistant modified bamboo fiber, 8 parts of anhydrous calcium sulfate whisker, 10 parts of basic magnesium sulfate whisker, 20 parts of phenolic resin, and 8 parts of copper powder , 3 parts of graphite powder, 15 parts of barite powder, 10 parts of alumina powder, 10 parts of cast iron powder, 12 parts of pyrophyllite powder, 4 parts of tire powder. Then put the phenolic resin to dry at 50°C for 1 hour, place the other raw materials except the heat-resistant modified bamboo fiber in the oven and dry...

Embodiment 3

[0025] Embodiment three (preferred embodiment)

[0026]Add 250 ml of aqueous solution in a 500 ml beaker, add 9 grams of borax, start stirring and heat to 40°C to completely dissolve borax. Immerse 4.5 grams of bamboo fiber in the borax solution, take it out after 12 minutes, and dry it at 120° C. for 20 minutes to obtain heat-resistant modified bamboo fiber. The following composition ratios are taken and the friction material is produced according to the above process steps. 4 parts of heat-resistant modified bamboo fiber, 16 parts of anhydrous calcium sulfate whisker, 10 parts of basic magnesium sulfate whisker, 16 parts of phenolic resin, 10 parts of copper powder, 2 parts of graphite powder, 12 parts of barite powder, aluminum oxide 15 parts of powder, 9 parts of cast iron powder, 14 parts of feldspar powder, and 2 parts of tire powder. Then put the resin on 55 ℃ and dry for 40 minutes, put the other raw materials except the heat-resistant modified bamboo fiber in the ...

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Abstract

The invention relates to a heat-resisting modified bamboo fiber and a method for preparing an automotive brake friction material from the same. The heat-resisting modified bamboo fiber is prepared by modifying a bamboo fiber through borax. A composite friction material is prepared from the heat-resisting modified bamboo fiber, phenolic resin, inorganic whisker, a friction performance regulator and the like, so that the environmental-friendly automotive brake composite material with excellent friction coefficient, high stability, low wear rate and good heat fading resistance is obtained. Compared with an unmodified bamboo fiber, the bamboo fiber subjected to heat-resisting modification, which is disclosed by the invention, has the advantages that the heat resistance of the bamboo fiber is obviously improved; and the high temperature friction wear performance of the composite friction material prepared from the heat-resisting modified bamboo fiber is also obviously improved.

Description

technical field [0001] The invention relates to the field of material science, and more specifically relates to a heat-resistant modified bamboo fiber and a method for using the same in automobile brake friction materials. Background technique [0002] Natural fibers such as hemp, bamboo, wood, straw, hemp straw, coconut shell fiber, etc. have high strength, modulus and relatively small density, can be biodegraded, and are suitable as reinforcements for polymer-based composite materials. The application field of structural parts and semi-structural parts has strong competitiveness. Natural fiber-reinforced composite products have seen one of the fastest-growing demands among all composite materials in recent years, with an average annual growth rate of up to 25%. The application of high-performance natural fiber-reinforced composite materials in foreign countries began more than 10 years ago. Germany, Belgium, Japan, the United States, Canada and other countries have carr...

Claims

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Application Information

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IPC IPC(8): C08J5/06C08L61/06C08L1/02C08K13/04C08K7/04C09K3/14F16D69/02B29C43/58
Inventor 高诚辉何福善林有希郑开魁
Owner FUZHOU UNIVERSITY
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