【摘要】 以注塑成型法制备了无机填料氟化钙(CaF2)和炭纤维增强尼龙1010复合材料,采用MM-200型磨损试验机考察了复合材料的摩擦磨损性能。研究结果表明,CaF2和炭纤维的复合添入可显著改善尼龙复合材料的摩擦学性能,其中30%CF～10%CaF2-Nylon的耐磨性能比30%CF-Nylon提高近5倍,而摩擦系数降低了约1/4。CaF2和CF增强尼龙复合材料在摩擦过程中发生了协同效应,CF-CaF2-Ny-lon在对偶钢环表面上生成富含钙元素的连续薄转移膜,提高了转移膜和对偶间的结合强度以及复合材料耐磨性能。更多还原

【Abstract】 Nylon1010 composite specimens were prepared with CaF₂ filler and short carbon fiber as the reinforcement. Friction and wear behaviors of composite materials were investigated in a ring-block wear tester. The results show that carbon fiber and CaF₂ filler is more effective in improving the tribological properties of nylon 1010 matrix. The wear rate and friction coefficient of 30%CF-10%CaF₂-Nylon is reduced almost 5 times and approximately 25% percent than that of 30%CF-Nylon, respectively. The synergism is occurred between CaF₂ filler and carbon fiber during the dry sliding friction. It is found that the transfer film of CF-CaF₂-Nylon is thin and continuous including abundant Ca element formed on the steel counterpart, which the adhesive strength between the transfer film and the steel counterpart, and the wear resistance of composite can be greatly improved, respectively.更多还原