【摘要】 以ZnO晶须作为材料改性剂,制备了不同晶须含量的碳纤维增强纸基摩擦材料.通过测试不同晶须含量样品的孔隙率、粗糙度以及微观形貌,研究材料结构随晶须含量的变化规律;测试样品的力学性能和摩擦学性能,探究了材料性能随晶须含量变化的关系.结果表明:ZnO晶须可以改善纸基摩擦材料的均匀性,随着晶须含量的增加,材料孔隙率先上升后下降,样品剪切强度随晶须含量增加而上升.当晶须含量在20%~30%之间时,样品具有最佳综合性能.更多还原

【Abstract】 The ZnO whisker was employed as modifier for improving the homogeneity of paper based friction material.In order to study the change of material structure,we tested the porosity,roughness and SEM of samples with different ZnO whisker content.The mechanical and tribological properties of the samples were tested under different condition to explore the relationship between the properties and whiskercontent.The results indicated that the ZnO whisker can improve the inhomogeneity of the paper based friction material.With the increase of the content of the ZnO whisker,the porosity increased and then decreased.The shear strength ofsamples increased with the increase of whiskercontent.In summary,the optimum contentwith the best comprehensive performance of ZnO whisker should be between20%~30%.更多还原