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| Effect of Compression Ratio and Application Environment on Mechanical Properties of Paper-based Friction Materials |
| Received:May 17, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.11.001 |
| Key Words:paper-based friction material compression ratio transmission oil medium mechanical properties |
| Fund Project:高性能湿式纸基摩擦材料基纸（D8216860）。 |
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| Abstract:To explore the optimal compression ratio of paper-based friction materials， the effect of compression ratio on the mechanical properties of paper-based friction materials during hot pressing was studied. The effect of temperature and compression ratio on the compressive resilience of paper-based friction materials in air medium and transmission oil medium were discussed in this study. The results showed that the paper-based friction material had the best pore structure and mechanical properties when the compression ratio was 40%. The sample porosity was 55.3%， the pore size was evenly distributed with the average pore size was 1.91 μm， the hardness was 98 HRR， the average kinetic friction coefficient was 0.117， the shear strength was 3.6 MPa， and the thermal mechanical properties were stable. In the same medium， the increase of compression ratio could improve the compressive resilience and decrease the permanent deformation rate of paper-based friction materials， while the increase of temperature leaded to the decrease of compressive resilience and increase of permanent deformation rate. In the transmission oil medium， the compressive resilience of the sample was more stable than that in the air medium. |
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