CE/nano-SiC复合材料的制备及其改性研究  

Study on preparation and modification of CE/nano-SiC composites

作　　者：张文根[1] 张学英[1] 

机构地区：[1]渭南师范学院复合材料研究所,陕西渭南714000

出　　处：《中国胶粘剂》2014年第5期42-45,共4页China Adhesives

基　　金：陕西省科技计划项目(2010K06-07);陕西省教育厅专项科研基金项目(2010JK547)

摘　　要：采用模塑成型法制备了CE(氰酸酯)/nano-SiC复合材料,通过弯曲强度测定、TGA(热失重分析)法和DMA(动态力学分析)法对复合材料的性能进行了分析。研究结果表明:nano-SiC经硅烷偶联剂(SCA-3)表面处理后,对复合材料的力学性能和耐热性具有明显的协同改性作用;当w(nano-SiC)=1%(相对纯CE质量而言)时,nano-SiC经SCA-3表面处理前后,相应复合材料的弯曲强度分别提高了20.84%和32.84%,玻璃化转变温度分别提高了13.09%和18.29%,失重5%时的热分解温度分别提高了12.31%和13.87%,450℃时的质量保持率分别提高了26.24%和42.99%。The CE （cyanate）/nano-SiC composites were made by moulding analyzed by measuring flexural strength, TGA （thermogravimetic analysis） and D MA methods. The research results showed that the composites modified by nano-SiC silane coupler （SCA-3） , had obvious synergy and modified function in mechanical method, their properties were （dynamic mechanical analysis） , which surface properties and was treated by heat resistance.The flexural strengths of eomposites were 20.84% and 32.84% respectively more than those of pure CE, the glass- transition temperatures of composites were 13.09% and 18.29% respectively more than those of pure CE, the heat- degradation temperatures at 5% weight loss of composites were 12.31% and 13.87% respectively more than those of pure CE, the quality retentions at 450 ℃ of eomposites were 26.24% and 42.99% respectively more than those of pure CE when mass fraction of nano-SiC was 1% in pure CE, and nano-SiC surfaces were untreated or treated by SCA-3.

关 键 词：氰酸酯 nano—SiC 硅烷偶联剂 复合材料 改性 

分 类 号：TB332[一般工业技术—材料科学与工程]