Modified environment-friendly friction material for motorcycle brake shoes and preparation process thereof

By introducing epoxy-phenolic interpenetrating network polymer resin, surface-coated nano-silica fibers, and composite metal sulfide solid lubricants into the friction material of motorcycle brake shoes, and combining it with hollow microsphere functional fillers, the problem of balancing environmental protection and comprehensive braking performance in motorcycle brake shoe materials has been solved. This has achieved high-temperature resistance to thermal fading, stable friction, and lightweight design, while complying with environmental regulations and extending service life.

CN122404908APending Publication Date: 2026-07-17JIANGSU CHIYING LOCOMOTIVE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU CHIYING LOCOMOTIVE TECH CO LTD
Filing Date
2026-04-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing motorcycle brake shoe friction materials struggle to balance environmental friendliness and overall braking performance. The problem of heat fade has not been fundamentally solved. The interfacial bonding strength between the fiber and the resin matrix is ​​insufficient. The material has high density and poor heat dissipation performance, and its lubrication performance is unstable, making it difficult to maintain stable friction performance over a wide temperature range.

Method used

By employing epoxy-phenolic interpenetrating polymer network resin, modified fibers coated with nano-silica, composite metal sulfide solid lubricant, and hollow microsphere functional filler, a multi-component mutually reinforcing friction material system is constructed through gradient dispersion and gradient temperature curing processes. This achieves dual interfacial bonding between fibers and resin, forming a stable lubricating film, reducing material density, and improving thermal insulation performance.

Benefits of technology

Under the premise of being environmentally friendly and harmless, it achieves high-temperature resistance to heat fade, stable coefficient of friction, good wear resistance and lightweight characteristics, ensuring stable braking performance of motorcycle brake shoes in a wide temperature range, meeting environmental protection regulations, extending service life and reducing unsprung mass of motorcycles.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种用于摩托车刹车蹄的改性环保型摩擦材料及其制备工艺,属于刹车片材料领域。该材料由环氧‑酚醛互穿网络聚合物树脂15~25份、表面包覆纳米二氧化硅的改性增强纤维20~35份、复合金属硫化物固体润滑剂3~10份、摩擦性能调节剂8~18份、中空微珠功能填料10~20份、环保型填料15~25份、加工助剂2~6份组成,不含石棉纤维和重金属。其制备工艺包括:纤维干燥处理,固体润滑剂超细化粉碎,中空微珠硅烷化处理;预混;梯度分散;热压成型;梯度升温固化。本发明通过环氧‑酚醛互穿网络、纳米包覆纤维、硫化锡与硫化铋复合物及中空微珠的协同作用,使材料兼具优异高温抗热衰退性能、稳定摩擦系数、良好耐磨性和轻量化特性,适用于摩托车刹车蹄批量生产。
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