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| 新型浸胶与热压工艺对纸基摩擦材料性能的影响 |
| Influence of New Dipping and Hot Pressing Process on the Properties of Paper-based Friction Materials |
| 收稿日期：2024-11-18 |
| DOI：10.11980/j.issn.0254-508X.2025.04.006 |
| 关键词: 纸基摩擦材料 二次浸胶 机械性能 摩擦磨损 |
| Key Words:paper-based friction material dual dipping process mechanical properties friction and wear |
| 基金项目:高性能湿式纸基摩擦材料基纸（D8216860）。 |
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| 摘要:为解决树脂在热压过程中的损伤问题，本研究探讨了新型浸胶与热压工艺，并与单次浸胶工艺和二次浸胶工艺进行对比，分析了新工艺对纸基摩擦材料结构、机械性能和摩擦磨损性能的影响。结果表明，新工艺可有效避免热压过程对纸基摩擦材料中树脂的破坏。当初始上胶量为7.5%、总上胶量为30%时，纸基摩擦材料中的树脂和孔径分布均匀。与单次浸胶工艺的纸基摩擦材料相比，纸基摩擦材料P-3硬度达97.6 HRR，剪切强度增大78.1%至4.06 MPa，热机械性能稳定，在2.96、4.50和5.60 MPa下的平均动摩擦因数方差分别降低75.0%、71.4%和72.7%，磨损率降至0.56×10-8 m3/(N·m)，在120 ℃和5.60 MPa下的摩擦性能稳定。 |
| Abstract:To solve the problem of resin damage in hot pressing process， this study explored a new dipping and hot pressing process， and compared it with the single dipping process and the dual dipping process， and analysed the effects of the new process on the structure， mechanical properties， and friction and wear properties of paper-based friction materials. The results showed that the new process could effectively avoid the destruction of the resin in the paper-based friction material during the hot pressing process. When the initial gluing amount was 7.5% and the total gluing amount was 30%， the resin and pore size in the paper-based friction material were uniformly distributed. In comparison to the paper-based friction material made by single dipping process， for paper-based friction materials P-3， the hardness reached 97.6 HRR， the shear strength was increased by 78.1% to 4.06 MPa， the thermo-mechanical properties were stable， and the variance of the average coefficient of dynamic friction at 2.96， 4.50， and 5.60 MPa were decreased by 75.1%， 71.4%， and 72.7%， respectively， and the wear rate was reduced to 0.56×10-8 m3/（N·m）， while the friction performance remained stable at 120°C and 5.60 MPa. |
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