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Polyethersulfone ketone modified resin based friction material

A technology of modified resin and polyethersulfone ketone is applied in the field of friction materials, which can solve the problems of inability to meet the requirements of modern friction materials, high brittleness of phenolic resin, limited heat resistance, etc., to achieve stable friction coefficient, low product wear, The effect of braking comfort

Inactive Publication Date: 2011-09-14
信义集团公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unmodified phenolic resin in friction materials has high brittleness, poor toughness, and limited heat resistance, which cannot meet the requirements of modern friction materials.

Method used

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  • Polyethersulfone ketone modified resin based friction material

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] For the problems existing in the prior art, according to the content of the invention, two groups of formulas (A formula and B formula) have been designed and tested. The experimental scheme and experimental results are as follows:

[0009]

[0010] According to the above formula design, the samples are processed and tested according to the following production process: Mixing→forming hot pressing→heat treatment→flat grinding→painting→drying→installing accessories→printing and packaging

[0011] test results

[0012] According to the analysis of experimental data, the friction material product of unmodified phenolic resin (formula A) has high hardness, and when performing the decay procedure, the decay rate is as high as 35%, the high-speed performance is poor, the friction coefficient is 0.22, and there is noise during the experiment Produced; while the polyether sulfone ketone modified resin friction material (formula B) has a significant improvement in the decline...

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Abstract

The present invention relates to polyether sulfur ketone modified resin group friction material. The technical proposal is that the material consists of the following components in terms of weight percentage: 5 to 18 percent of adhesive agent, 20 to 30 percents of reinforced material, 1 to 15 percent of abrasive, 5 to 15 percent of lubricant, 10 to 30 percent of filler and 20 to 30 percent of mixed material; wherein, the adhesive agent is polyether sulfur ketone modified resin, the reinforced material is the combination of one or several of steel fiber, aramid fiber, mineral fiber and glass fiber, the abrasive is the combination of one or several of Al2O3, ferric oxide and magnesia, the lubricant is the combination of one or several of graphite, molybdenum sulfide and mica, and the filleris the combination of one or several of barium sulfate, potassium titanate and vermiculite powder. The brake block produced by the recipe has no heat fading phenomenon in high temperature, stable friction coefficient, small product abrasion, comfortable braking in use, no noises and service life can reach to more than 70,000km.

Description

Technical field: [0001] The invention relates to a polyether sulfone ketone modified resin-based friction material in the field of friction materials. Background technique: [0002] Currently used friction materials are usually composed of adhesives, reinforcing materials, friction modifiers (abrasives and lubricants), fillers and mixtures. The adhesives are mainly unmodified phenolic resins. This kind of friction material uses phenolic formaldehyde as the matrix resin to bond various reinforcing fibers and other components into a friction material product with various properties required for friction braking. The matrix resin plays a very important role in the performance of the entire material. With the development of high-speed and heavy-duty transportation machinery, higher requirements are put forward for high-performance friction materials, such as good decay resistance, thermal recovery, stable friction coefficient, small wear and low noise, etc. . However, unmodifi...

Claims

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Application Information

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IPC IPC(8): C08J5/14C08L81/06
Inventor 田式国杜东升
Owner 信义集团公司
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