首页|Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites

Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites

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Copper particles emitted from braking have become a significant source of environmental pollution.However,copper plays a crucial role in resin-based braking materials.Developing high-performance braking materials with-out copper has become a significant challenge.In this paper,the resin-based braking materials were filled with fly-ash cenospheres to develop copper-free braking materials.The effects of fly-ash cenospheres on the physical properties,mechanical and friction and wear properties of braking materials were studied.Furthermore,the wear mechanism of copper-free resin-based braking materials filled with fly-ash cenospheres was discussed.The results indicate that the inclusion of fly-ash cenospheres in the braking materials improved their thermal stability,hard-ness and impact strength,reduced their density,effectively increased the friction coefficient at medium and high temperatures,and enhanced the heat-fade resistance of the braking materials.The inclusion of fly-ash cenospheres contributed to the formation of surface friction film during the friction process of the braking materials,and facilitated the transition of form from abrasive wear to adhesive wear.At 100-350 ℃,the friction coefficient of the optimal for-mulation is in the range of 0.57-0.61,and the wear rate is in the range(0.29-0.65)× 10-7cm3·N-1·m-1,demonstrating excellent resistance to heat-fade and stability in friction coefficient.This research proposes the use of fly-ash ceno-spheres as a substitute for environmentally harmful and expensive copper in brake materials,which not only improves the performance of braking materials but also reduces their costs.

Fly-ash cenospheresBraking materialsFriction and wearHeat-fade resistanceWear form

Kaikui Zheng、Youxi Lin、Shanmin You、Zhiying Ren、Jianmeng Huang

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School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350108,China

National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology,Luoyang 471023,China

国家自然科学基金福建省自然科学基金福建省自然科学基金Project National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology of Chin

522751782020J051152022J01073202103

2024

10.1186/s10033-024-01010-y

中国机械工程学报
中国机械工程学会

中国机械工程学报

CSTPCD
影响因子：0.765
ISSN：1000-9345
年,卷(期)：2024.37(2)