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| Study on the Effects of Carbon Fiber Preforms with Different Fiber Forming Structures on Properties of Wet Friction Materials |
| Received:January 06, 2026 Revised:January 29, 2026 |
| DOI：10.11980/j.issn.0254-508X.2026.06.006 |
| Key Words:carbon base paper carbon felt carbon cloth wet friction materials phenolic resin |
| Fund Project:教育部基础学科和交叉学科突破计划（JYB2025XDXM412）。 |
| Author Name | Affiliation | Postcode | | GENG Hebin* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | XIANG Hongjia | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LU Anan | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | YAO Mengmeng | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | HE Jiayao | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHANG Chunhui* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:To optimize the structural design and regulate tribological properties of carbon fiber friction materials， three types of polyacrylonitrile (PAN)-based carbon fiber preforms including raw carbon paper， carbon felt， and carbon cloth were impregnated with phenolic resin solution. Carbon fiber friction materials were subsequently manufactured via hot pressing and curing. The influences of different preform structures on surface micromorphology， pore structure， hardness， shear strength， compression resilience， friction， and wear performance of the materials were investigated. The results revealed that compared with carbon cloth-based samples， the carbon fiber friction materials prepared from raw carbon paper and carbon felt showed porosity increased by 386.2% and 338.3%， hardness declined by 34.0% and 30.1%， compressibility increased by 60.0% and 24.1%， resilience rate declined by 5.6% and 4.6%， and permanent deformation rate increased by 151.7% and 101.7%， respectively， both accompanied by a remarkable reduction in shear strength. After friction and wear tests， raw carbon paper and carbon felt-based fiber friction materials achieved superior friction performance. Their midpoint friction coefficients were 0.116~0.141 and 0.105~0.131， end-to-midpoint friction coefficient ratios were 0.952~1.081 and 1.082~1.173， and wear rates were 2.16×10-6 and 1.46×10-6 cm3/J， correspondingly. By contrast， carbon cloth-based fiber friction material possessed a midpoint friction coefficient of 0.094~0.118， an end-to-midpoint friction coefficient ratio of 0.987~1.115， and a wear rate of 1.18×10-6 cm3/J， which exhibited outstanding bonding stability and long-term wear resistance. |
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