改性玄武岩纤维增强橡胶基摩擦材料的摩擦学性能

Friction and Wear Characteristics of Modified Basalt Fibers Reinforced Rubber-based Composites

采用热压成型工艺制备改性玄武岩纤维增强橡胶基复合材料,考察其力学性能和摩擦学性能,采用扫描电镜(SEM)和能谱仪(EDS)对摩擦表面和磨料粉尘进行表征。结果表明,与憎水剂和硅烷偶联剂改性玄武岩短纤维及硅烷偶联剂改性玄武岩纤维增强复合材料相比,由于玄武岩纤维碎片的参与,聚醋酸乙烯酯和硅烷偶联剂改性玄武岩纤维增强橡胶基复合材料的摩擦表面上形成了完整且稳定的摩擦膜,这有助于稳定摩擦因数以及降低磨损率,因此表现为具有更好的摩擦学性能。

Modified basalt fibers reinforced rubber-based composites were prepared by hot-press molding process.The mechanical property and tribological behavior of the prepared materials were investigated,and the friction surface and abrasive dust were analyzed by Scanning Electron Microscope(SEM)and Energy Dispersive Spectroscopy(EDS).The results show that compared with the composites reinforced with hydrophobic agent and silane coupling agent modified short basalt mineral fiber and silane coupling agent modified short basalt mineral fiber respectively,due to the the participation of the debris of basalt fiber,the composite reinforced with polyvinyl acetate and silane coupling agent modified basalt fiber can form a complete and stable friction film on the friction surface,which contribute to stabilize the friction coefficient and reduce the wear,and presents better tribological performance.