环氧液晶/酚醛树脂复合材料的摩擦磨损性能研究  

Study on Friction Properties of LCE/Phenolic Resin Composites

作　　者：潘冬明[1] 韦春[1] 高秋姗[1] 党晓东[1] 李肖建[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：《塑料科技》2011年第9期45-48,共4页Plastics Science and Technology

基　　金：国家自然科学基金(50763001);广西自然科学基金(2010GXNSFA013030);广西科技厅项目(09-007-02-19)资助

摘　　要：利用自行合成的端基为环氧基的热致性环氧液晶(LCE)与酚醛树脂(PF)通过熔融挤出进行原位复合制备了LCE/PF复合材料。研究了LCE含量对LCE/PF复合材料力学性能、硬度及摩擦性能的影响,使用扫描电子显微镜(SEM)观察了复合材料的磨损面形貌,分析了复合材料的摩擦磨损机理。研究结果表明:LCE含量为2.5%时,摩擦系数比未加LCE的稳定,力学性能也有所提高;在各温度下,LCE含量为7.5%的复合材料的体积磨损率比未加LCE的复合材料的小达,到了GB 5763—2008的要求。LCE/PF in-situ composites were prepared with self-made thermotropic liquid crystalline epoxy and phenolic resin by melting extrusion.Effects of LCE content on the mechanical properties,hardness,friction and wear properties of LCE/PF composites were studied.The abrasion surfaces of composites were observed by scanning electron microscope（SEM）,and the friction and wear mechanism was analyzed.The results show that friction coefficient is more stable and mechanical properties are improved by adding 2.5% LCE;under different temperatures,volume wear rate is lower by adding 7.5% LCE than that of composites without containing LCE,and meets the requirement of GB 5763—2008.

关 键 词：环氧液晶 酚醛树脂 摩擦性能 

分 类 号：TB332[一般工业技术—材料科学与工程]