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| Study on the Distribution of Resin in Paper-based Friction Materials |
| Received:March 21, 2025 Revised:April 08, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.08.007 |
| Key Words:paper-based friction materials resin distribution impregnation |
| Fund Project:高性能湿式纸基摩擦材料基纸（项目号：D8216860）。 |
| Author Name | Affiliation | Postcode | | WANG Yuxiang* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHAO Xintao | 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:Structure and properties of paper-based friction materials are essentially affected by their surface and internal resins， and the uniformity of resin distribution determines the interaction among the internal components of paper-based friction materials， thus affecting the overall physico chemical properties. In order to realize the uniform distribution of resin in paper-based friction materials， the effect of resin content on the Z direction distribution (from mesh to blanket) of resin in paper-based friction materials was investigated. The results showed that with the increase of resin solution mass fraction， the resin content of paper-based friction materials increased， and the porosity and average pore size decreased. According to the difference of X-ray absorption degree of each component in paper-based friction material， the resin content was measured. When the resin content was low and the volume proportion was about 7%， the resin was evenly distributed in the Z direction of the paper-based friction material. With the increase of resin content， due to the uneven distribution of fibers， fillers， and pores in the base paper， the Z direction distribution of the resin in the paper-based friction material was uneven， and the two-sided difference of the resin content of the paper-based friction material increased. When the resin content in the paper-based friction material was high， the resin further occupied the available space occupied by air inside the paper-based friction material， resulting in the continuous increase of the resin inside the paper-based friction material， but the difference between the two sides of the resin content was only 0.5%. |
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