High-damping resin-based friction material and preparation method thereof

A friction material and resin-based technology, applied in the field of friction materials, can solve the problems of the influence of the mechanical properties of composite materials, the difficulty of controlling the uniformity of materials, and the complicated preparation process, so as to improve the ride comfort, the friction coefficient is stable, and the friction coefficient is high. Effect

Pending Publication Date: 2021-08-03
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation step of this invention is to put the mixed base material layer, vibration damping layer and fabric layer premix into the hot pressing mold in sequence according to the weight ratio, and carry out hot pressing molding, but the preparation steps are relatively complicated, and the uniformity of the material is difficult to control, etc. question
[0006] The current idea of ​​friction material vibration reduction and noise reduction mainly has two aspects: one is to add sound-absorbing fillers, but sound-absorbing materials are mostly porous structures, which affect the mechanical properties of composite materials; the other is to add external components or change their own structure , the preparation process is relatively complicated, and the manufacturing cost increases

Method used

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  • High-damping resin-based friction material and preparation method thereof
  • High-damping resin-based friction material and preparation method thereof
  • High-damping resin-based friction material and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0032] A high-damping resin-based friction material, comprising the following components according to mass percentage: phenolic resin: 13%-18%, polyacrylonitrile carbon fiber: 15%-20%, friction performance regulator: 40%-60%, damping silicon Rubber content: 3% to 6%.

[0033] Step 1: weigh phenolic resin, fiber, friction performance modifier and damping silicone rubber according to mass percentage, put into high-speed mixer and stir, and put into mold after reaching uniform mixing;

[0034] Step 2: Preheating the die to 150-160°C, ready for pressing;

[0035] Step 3: the pressing process conditions are: pressing temperature 160°C, pressing pressure 5Mpa, heat preservation and pressure holding time 600s, deflation once every 50 seconds;

[0036] Step 4: Put the pressed product sample in an oven, raise the temperature to 120°C, and keep it warm for 60 minutes; raise the temperature to 140° C, and keep it warm for 90 minutes; raise the temperature to 160° C, and keep it warm for...

example 2

[0038] A high-damping resin-based friction material, comprising the following components according to mass percentage: phenolic resin: 13%-18%, polyacrylonitrile carbon fiber: 15%-20%, friction performance modifier: 40%-55%, damping silicon Rubber content: 9% to 12%; the preparation method of the material is as described in Example 1.

example 3

[0040] A high-damping resin-based friction material, comprising the following components according to mass percentage: phenolic resin: 13%-18%, polyacrylonitrile carbon fiber: 15%-20%, friction performance modifier: 40%-50%, damping silicon Rubber content: 13% to 16%; the preparation method of the material is as described in Example 1.

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Abstract

The invention relates to a high-damping resin-based friction material and a preparation method thereof, after high-damping vulcanized silicone rubber and other materials are uniformly stirred at a high speed, the resin-based friction material is finally obtained through mold filling, hot pressing and polishing. According to the high-damping silicone rubber modified resin-based friction material, the damping loss factor is improved, impact can be relieved, vibration can be weakened, the noise level in the braking process can be reduced, the riding comfort can be improved, and environmental noise pollution can be reduced. Meanwhile, the friction material has the advantages of being low in wear rate, high in friction coefficient, stable and the like.

Description

technical field [0001] The invention belongs to the field of friction materials, and relates to a high-damping resin-based friction material and a preparation method. Background technique [0002] Friction material is the key part of the braking device or the transmission of the carrying machine. Its main function is to absorb the kinetic energy of the car through friction and convert it into other forms of energy, so as to achieve the functions of braking and deceleration. Resin-based friction materials are mainly composed of resin binders, reinforcing fibers, friction performance regulators, fillers and other components, and have good friction coefficient, wear resistance, certain heat resistance and mechanical strength, and are widely used Used in motorcycles, trucks, automobiles, oil drilling rigs, mining machinery, agricultural vehicles and other construction machinery and equipment. [0003] With the continuous progress of the automobile industry, people put forward h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L83/04C08K7/06C08L61/14
CPCC08L61/06C08L61/14C08L83/04C08K7/06
Inventor 付前刚李博费杰李贺军齐乐华李畅
Owner NORTHWESTERN POLYTECHNICAL UNIV
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