纳米二氧化硅的表面处理对纳米二氧化硅改性氰酸酯树脂摩擦学性能的影响  

The Influence of the Surface Treatment of Nano-SiO_2 on the Tribological Properties of Nano-SiO_2 Modified Cyanate Ester Resin

作　　者：张文根[1] 张学英[1] 祝保林[1] 王君龙[1] 梁国正[2] 

机构地区：[1]渭南师范学院复合材料研究所,陕西渭南714000 [2]西北工业大学理学院,陕西西安710072

出　　处：《摩擦学学报》2009年第3期288-292,共5页Tribology

基　　金：陕西省自然科学基金项目(2006B25);渭南师范学院科研基金项目(08YKF016)

摘　　要：采用模塑成型法制备氰酸酯树脂(CE)/纳米二氧化硅(nano-SiO2)复合材料,通过磨损率和摩擦系数测试、扫描电子显微镜(SEM)表征,分别考察了nano-SiO2及其经两种偶联剂KH-560和SEA-171表面处理后对CE摩擦学性能的影响.测试结果表明,经偶联剂表面处理后的nano-SiO2能够更加有效地改善CE的摩擦磨损性能,两种偶联剂相比,SEA-171的改性效果较好.SEM分析表明,不同性质的nano-SiO2形成的复合材料,其磨损方式主要表现为磨粒磨损,黏着磨损则随着nano-SiO2未表面处理、KH-560和SEA-171分别表面处理的顺序依此减轻.The influence of the nano -SiO2 powders surface treated by coupling agent KH -560 and SEA -171 on the tribological properties of the CE/nano - SiO2 composite was investigated by the moulding method. Results indicated that the nano - SiO2 treated by coupling agent effectively improved the friction and wear performance of CE and SEA - 171 showed better effect of modification as compared with KH - 560. SEM analysis indicated that the wear mechanism of the composite with nano - SiO2 of various nature was mainly abrasive wear. The extent of adhesive wear decreased in the following sequence ： untreated nano - SiO2, nano - SiO2 treated by KH - 560 and SEA - 171.

关 键 词：氰酸酯树脂 纳米二氧化硅 偶联剂 摩擦磨损 

分 类 号：TH117.3[机械工程—机械设计及理论]