GO／PF原位复合材料的摩擦磨损性能及力学性能  

Friction and Wear Properties and Mechanical Properties of GO/PF In-Situ Composites

作　　者：徐伟华[1] 韦春[1] 刘红霞[1] 苏乐[1] 曾思华[1] 

机构地区：[1]桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《现代塑料加工应用》2012年第6期1-4,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金(编号:51163003,51163004)资助

摘　　要：采用改进的Hummers法制备氧化石墨烯(GO),并与酚醛树脂(PF)进行原位聚合,将原位聚合树脂与固化剂、填料等通过辊炼、模压成型制备GO/PF原位复合材料。研究GO的含量对GO/PF原位复合材料的力学性能及摩擦磨损性能影响,使用扫描电子显微镜(SEM)观察复合材料的磨损面形貌。研究结果表明,GO通过原位聚合能在一定程度上提高复合材料的力学性能、摩擦磨损性能,当GO质量分数为0.25%时,GO/PF原位复合材料的冲击强度提高了18.6%,在250℃和300℃下,GO/PF原位复合材料的体积磨损率分别降低了20.0%和15.6%。Graphene oxide （GO） was synthesized by a modified Hummers method,and GO/PF composites were prepared through in-situ polymerization with phenol formaldehyde （PF） resin. The friction and wear properties and mechanical properties of GO/PF in-situ composites with different contents of GO were studied. The abrasion surface of the composites was observed by scanning electron microscope （SEM）. The results show that the friction and wear properties, and mechanical properties of GO/PF composites are improved by in-situ polymerization with GO. When the mass ratio of GO is 0. 25%, the impact strength increases by 18. 6%, the wear rate of the composites decreases by 20.0% and 15.6% at 250 ℃ and 300 ℃ respectively.

关 键 词：氧化石墨烯 酚醛树脂 原位聚合 摩擦 磨损 力学性能 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]