MoS2/PMMA纳米复合材料摩擦性能研究  

Study on Friction of MoS_2 /PMMA Nano Composites

作　　者：王琼生[1,2] 孙燕丽 王世铭[4] 郑立群[4] 

机构地区：[1]福建师范大学材料科学与工程学院,福建福州350117 [2]福建省高分子重点实验室福建福州350117 [3]福建生物工程职业技术学院药学系,福建福州350002 [4]福建师范大学化学与化工学院,福建福州350117

出　　处：《福建师范大学学报（自然科学版）》2013年第6期87-92,99,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省科技厅重大项目(2010H6006)

摘　　要：以液相溶剂热合成和表面改性技术制备的纳米MoS2作为减磨剂,耐磨性差的聚甲基丙烯酸甲酯(PMMA)为聚合物基,借助超声分散与溶液热流延技术制备MoS2/PMMA纳米复合材料.通过摩擦磨损试验研究纳米MoS2对PMMA摩擦性能的影响,并探讨材料的宏观组成、微观结构与摩擦学特性之间的关系.实验表明,在聚合物基PMMA引入MoS2纳米粒子,其摩擦系数降幅达50%以上,且降幅有随MoS2加入量并增的趋势.十六烷基三甲基溴化铵(CTAB)表面修饰改性的MoS2对PMMA减摩效果最佳,加入质量分数5%即可使其摩擦系数降低73%.The composites of polymethylmethacrylate （PMMA） filled with MoS2 nano particles, which have been synthesized through a mild solvothermal reaction and were surface-modified as anti- friction additive, was prepared by ultrasonic dispersion and heat flow solution technique. The MoS2 effect on the composites friction properties were investigated with SFT-2M tribometer, the relations among tribological properties, microstructure and macro component were discussed. The result shows that the friction factor of the composites fell 50% above, and the more addition of MoS2 and the smaller friction factor of the composites. The antifriction effect of hexadecyl trimethyl ammonium bromide （CTAB） modified MoS2 on PMMA is the best, the friction factor fell 73% under addition of 5% CTAB-MoS2 nano particle.

关 键 词：二硫化钼 聚甲基丙烯酸甲酯 纳米复合材料 摩擦性能 

分 类 号：TH137.51[机械工程—机械制造及自动化] TB42[一般工业技术]