【作者】 冯文平； 于在乾； 赵洋； 张龙；

【Author】 FENG Wen-ping,YU Zai-qian,ZHAO Yang,ZHANG Long (JiLin Provincial Engineering Laboratory for the Complex unilization of Petro resources and Biomass, Changchun University of Technology,Changchun 130012,China)

【机构】 长春工业大学吉林省石化资源与生物质综合利用工程实验室；

【摘要】 首次报道了采用超声、高速剪切分散的方法制备二氧化双环戊二烯与二氧化硅纳米复合材料。对制得的材料进行了力学性能测试、电镜扫描、热失重测试分析。结果表明,纳米复合材料的力学性能有很大的提高,其中当二氧化硅添加的质量分数为4%时,复合材料的冲击强度达到了36.57J/M,比纯树脂提高了252%。扫描电镜分析表明,复合材料的断口呈复杂的鱼鳞状,说明复合材料形成的新表面多,吸收的冲击能多。热失重分析表明,复合材料的高温热稳定性有明显提高,二氧化硅添加的质量分数为4%的复合材料在400℃时失重率比纯树脂减少了25%。更多还原

【Abstract】 A complex material of dicyclopentadiene dioxide epoxy(R-122) with nano-silica was prepared,using the method of supersonic dispersion and High-speed shearing.The mechanical properties,thermal stability and morphology of the composite were investigated.The results indicated that the mechanical properties of impact strength be improved greatly,the largest impact strength of 36.57J/M is obtained,when the content of nano-silica is 4%,it is 252%higher than that of the pure resin’s.The complex shape of the fracture is scanned by SEM,and a fish-scale liked surface is observed as it has more new surface,a more impact energy can be absorbed. TGA shows that the thermal stability of the composite has been significantly improved compared with the pure resin.The weight loss is reduced by 25%at temperature 400℃,when the content of nano-silica is 4%.更多还原