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为研究离子注入技术对聚苯醚（PPO）的表面硬度和耐磨性的提高效果，分别将3种剂量（2×1015 cm－2、1×1016 cm－2和1×1017 cm－2）的Al、Ti 、Fe离子注入PPO。纳米硬度测量显示，1×1016 cm－2 Ti离子注入PPO后其硬度由0.369 GPa增至1.433 GPa，离子注入使PPO表面形成一层交联层，导致其硬度提高。磨损实验表明，3种离子注入后均可使PPO的耐磨性提高，摩擦因数下降；其中1×1016 cm－2 Ti离子注入PPO的磨损体积降为原来的0.4%，摩擦因数下降了40％。红外光谱分析表明，离子注入后PPO表面形成羟基和羰基等新的基团，羟基的形成主要与表面微量吸水有关。电子自旋共振(ESR)分析显示离子注入可以形成自由基，离子注入诱发交联的方式主要为自由基交联。
In order to study the effect of ion implantation on the surface hardness and wear resistance of polyphenylene ether (PPO), three doses (2 × 10 15 cm -2, 1 × 10 16 cm -2 and 1 × 10 17 cm -2) Of Al, Ti, Fe ion implantation PPO. The nano-hardness measurement showed that the hardness increased from 0.369 GPa to 1.433 GPa after 1 × 1016 cm-2 Ti ions were implanted into PPO. Ion implantation made the PPO surface form a crosslinked layer, resulting in the increase of hardness. The wear test shows that the wear resistance of PPO can be improved and the friction coefficient decreases after all the three kinds of ion implantation. The wear volume of 1 × 1016 cm-2 Ti implanted PPO is reduced to 0.4% and the friction coefficient is reduced by 40% . The results of FTIR showed that new groups such as hydroxyl group and carbonyl group were formed on the surface of PPO after ion implantation, and the formation of hydroxyl group was mainly related to the surface water absorption. Electron spin resonance (ESR) analysis shows that ion implantation can form free radicals, and the way of ion implantation induced crosslinking is mainly free radical crosslinking.