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Reinforced wear-resistant automobile brake composite material and preparation method thereof

A composite material, automobile braking technology, applied in chemical instruments and methods, mechanical equipment, other chemical processes, etc., can solve the problems of high price, low wear rate, limited application, etc., to achieve low cost, low wear rate, anti- The effect of high thermal decay

Active Publication Date: 2013-04-24
江苏裕铭铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most high-quality whiskers are expensive, which greatly limits their applications
The patent with publication number CN 101514252A discloses a whisker-reinforced brake composite material, which has moderate friction coefficient, low wear rate, heat resistance and anti-fading, but has the disadvantages of high noise and vibration and high cost

Method used

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  • Reinforced wear-resistant automobile brake composite material and preparation method thereof
  • Reinforced wear-resistant automobile brake composite material and preparation method thereof
  • Reinforced wear-resistant automobile brake composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh each raw material according to the weight of the formula, first add 90 parts of silicone modified phenolic resin into the kneader, heat to 60-70°C, and gradually add composite reinforcing fibers (55 parts of steel fiber and 55 parts of aramid fiber), Filler (55 parts of barite and 37 parts of graphite), 28 parts of nitrile rubber, 7.5 parts of hexamethylenetetramine, 4.8 parts of magnesium oxide, friction modifier (30 parts of rubber powder and 15 parts of copper powder), reducing Noise agent (synthetic calcium hydrosilicate and graphite formed particles) 32 parts and stearic acid 4.8 parts, and keep stirring, keep the mixing temperature at 50-60 ℃, stirring time 40-50 min, speed 280-300 r / min; then the above kneaded material is sent to a double-roller rolling machine for heating and kneading, the purpose is to further mix the material, the speed ratio of the two rolling rolls is 1:1.5, the front roll is 16 r / min, and the rear roll is 24 r / min, the temperature of...

Embodiment 2

[0040] Weigh each raw material according to the weight of the formula, first add 86 parts of silicone modified phenolic resin into the kneader, heat to 60-70°C, and gradually add composite reinforcing fiber (50 parts of steel fiber and 50 parts of carbon fiber), filler ( 50 parts of pyrophyllite and 30 parts of graphite), 30 parts of nitrile rubber, 6.2 parts of benzenesulfonyl chloride, 4.2 parts of calcium hydroxide, friction performance modifier (20 parts of tire powder and 10 parts of copper powder), noise reduction agent (synthetic silicon hydride Calcium acid and coke formed particles) 30 parts and 4.5 parts of zinc stearate, and keep stirring, keep the mixing temperature at 50-60 ° C, stirring time 30-40 min, rotating speed 290-310 r / min; then the above The kneaded material is sent to the double-roller rolling machine for heating and kneading, the purpose is to further mix the material, the speed ratio of the two rolling rolls is 1:1.4, the front roll is 15 r / min, the re...

Embodiment 3

[0042]Weigh each raw material according to the weight of the formula, first add 100 parts of silicone modified phenolic resin into the kneader, heat to 60-70°C, and gradually add composite reinforcing fibers (62 parts of steel fiber and 62 parts of aramid fiber), Filler (63 parts of talc and 42 parts of graphite), 25 parts of polyvinyl acetal, 8.5 parts of hexamethylenetetramine, 5.2 parts of magnesium oxide, friction modifier (50 parts of rubber powder and 25 parts of iron powder), Noise agent (synthetic calcium hydrosilicate and graphite formed particles) 35 parts and magnesium stearate 5.4 parts, and keep stirring, keep the mixing temperature at 50-60 ℃, stirring time 40-50 min, rotating speed 250-270 r / min; then the above-mentioned kneaded material is sent to a double-roller rolling machine for heating and kneading, the purpose is to further mix the material, the speed ratio of the two rolling rolls is 1:1.2, the front roll is 20 r / min, and the rear roll 24 r / min, the tem...

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Abstract

The invention discloses a reinforce wear-resistant automobile brake composite material which is prepared from the following components in parts by weight: 85-100 parts of resin matrix, 100-150 parts of composite reinforcing fiber, 80-120 parts of filler, 25-40 parts of toughening material, 6-10 parts of curing agent, 4-6 parts of curing accelerator, 30-85 parts of frictional property regulator, 30-40 parts of noise reducer and 4.5-6 parts of releasing agent. The resin matrix is reinforced by the composite reinforcing fiber and matched with proper frictional property regulator, filler, toughening material and noise reducer to display the synergic coupling actions among the resin matrix, reinforcing fiber, filler and frictional property regulator, thereby obtaining the novel automobile brake composite material which has the advantages of stable friction factor, small wear rate, high heat fade resistance, favorable braking effect, shock absorption, noise reduction, high mechanical strength, low cost, long service life and favorable braking property at different temperatures.

Description

technical field [0001] The invention relates to a friction material used in automobile brakes, belongs to the technical field of polymer composite materials, and in particular relates to an enhanced wear-resistant automobile brake composite material and a preparation method thereof. Background technique [0002] With the development of the automobile industry, my country's automobile production has grown steadily, and the scale of automobile consumption has become increasingly large. Higher requirements have been placed on the performance of automobile materials. Material technology is an important content and material basis for innovation in the automobile industry. The development and application of new materials not only promote the progress of automobile production technology, but also promote the development and progress of the material industry itself, which is of great significance to the development of the national economy. The development trend of automobile brake f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08K13/04C08K7/06C08K7/14C09K3/14F16D69/02B29C51/18B29B7/52
Inventor 郭学林
Owner 江苏裕铭铜业有限公司
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