用离子注入技术来提高尼龙66的表面硬度和耐磨性。C、Al、Ti、Fe、Ni 5种离子单独被注入尼龙66，每种离子的剂量分别为2×1015 ions/cm2、1016 ions/cm2、5×1016 ions/cm2或1017 ions/cm2。磨损实验表明，5种离子注入后均可使尼龙66的耐磨性提高，其中Al离子注入后改性效果最好，1017 ions/cm2 Al离子注入后尼龙66的耐磨性提高了8倍多。纳米硬度测量显示，1017 ions/cm2 Al离子注入后其硬度提高了1.4倍，弹性模量提高了15%。 Ion implantation technology to improve the surface hardness and wear resistance of nylon 66. Five kinds of ions of C, Al, Ti, Fe and Ni were separately injected into nylon 66, and the dose of each ion was 2 × 10 15 ions / cm 2, 1016 ions / cm 2, 5 × 10 16 ions / cm 2, or 1017 ions / cm 2, respectively. The wear test shows that the wear resistance of nylon 66 can be enhanced after all the five kinds of ions are implanted, among which the modification effect is the best after Al ion implantation. The wear resistance of Nylon 66 increases more than 8 times after 1017 ions / cm2 Al ion implantation . Nano-hardness measurements showed that the hardness increased by 1.4 times and the modulus of elasticity increased by 15% after 1017 ions / cm2 Al ion implantation.