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| Fabrication and Performance Study of Micro/Nano Carbon Particle Coatings on Paper-based Friction Composites |
| Received:November 22, 2025 Revised:January 16, 2026 |
| DOI：10.11980/j.issn.0254-508X.2026.05.007 |
| Key Words:paper-based friction composites dispersibility carbon particles friction and wear properties |
| Fund Project:校协合作基金（D8216860、D8244720）。 |
| Author Name | Affiliation | Postcode | | YAO Mengmeng* | 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 | | XIANG Hongjia | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LU An’an | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | GENG Hebin | 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 | | LIN Mingcen* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:Micro/nano-sized carbon particles are prone to agglomeration， making it difficult to construct uniform and wear-resistant coatings on paper-based friction materials. To address this issue， graphene nanoplatelets (GNP)， vapor-grown carbon fibers (VGCF)， and carbon fiber powders (CF) were separately sprayed onto friction base paper using an air-spraying technique. Subsequently， paper-based friction composites were fabricated through resin impregnation， hot pressing， and curing processes. Their microstructure， shear strength， thermal diffusivity， and frictional performance were systematically investigated. The results indicated that when the carbon particle content was 2%， the dispersibility， stability， and fluidity of the GNP， VGCF， and CF dispersions were all optimal. Compared with the pristine friction base paper without carbon particles， the paper-based composites coated with GNP exhibited increases of 16.3% and 8.2% in in-plane and normal thermal diffusivity， respectively， along with a 50% reduction in wear rate. For VGCF-coated composites， the shear strength increased by 129.1%， while the oil absorption time increased significantly. For CF-coated composites， the dynamic friction coefficient under a braking pressure of 3.01 MPa increased by 6.3%， and the coefficient of variation decreased by 33.6%~52.0%. In addition， the ratio of average dynamic to static friction coefficients approached to 1， indicating simultaneous improvements in transmission efficiency and operational stability. |
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