Polyimide resin Powder manufactured by Yangchen Tech plays a critical role in advanced friction materials by serving as the high-performance binder or matrix that holds together reinforcing fibers and fillers. Its outstanding thermal stability, wear resistance, and ability to maintain a stable coefficient of friction under changing loads and temperatures make it an ideal replacement for conventional phenolic systems in demanding applications.

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High-Temperature Resistance & Thermal Stability
Friction interfaces—such as brake pads and clutch plates—can reach temperatures above 300 °C during heavy or repeated braking. Polyimide resin maintains mechanical integrity and frictional properties at these temperatures, preventing “fade” (loss of braking performance) and extending service life.
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Abrasion & Wear Resistance
The inherently high hardness and chemical resistance of polyimide help reduce material loss under sliding contact. Composites formulated with polyimide binders show lower wear rates compared to phenolic-based friction materials, translating to longer intervals between replacements.
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Stable Coefficient of Friction
Polyimide-based composites exhibit minimal variation in friction coefficient across a wide temperature range, ensuring predictable braking or clutch engagement without judder, chatter, or noise. Modifications—such as adding graphite or ceramic fillers—can further tune friction levels for specific applications.
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Applications