CE/SiC纳米复合材料的制备与性能  

Preparation and performance of CE/SiC nano-composites

作　　者：张学英[1] 张文根[1] 祝保林[1] 梁国正[2] 

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

出　　处：《化工新型材料》2009年第4期59-61,共3页New Chemical Materials

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：采用高速均质剪切法制备CE/SiC纳米复合材料,通过力学性能测试、热失重(TGA)分析和动态力学能谱(DMA)分析,考察了纳米SiC不同含量对其性能的影响。结果表明,纳米SiC能有效改善CE的静态力学性能、热稳定性和耐热性。相对纯CE,当纳米SiC含量为1.00%时,复合材料冲击强度的提高率为73.78%,弯曲强度的提高率20.84%;失重5%时,热分解温度的提高率为12.31%;500℃时,质量保持率提高为6.48%;玻璃化转变温度的提高率为13.09%。Cyanate ester resins/SiC nano-composites were prepared by the high-speed homogeneous shearing method. Influences of different content of nano-SiC on its performance were investigated through mechanical test, TGA analysis and DMA analysis. The results indicate that nano-SiC can efficiently improve the quasi-static mechanical properties, the thermal stability and the heat resistanced of CE. Compared with pure CE, the increase rates of the impact strength of the composites was 73. 78% , under the condition that the content of the nano-SiC was 1.00%, while the flexural strength increased 20.84%. When the mass loss of composites was 5%, the degradation temperature increased by 12.31%. The quality maintaining rate increased 6. 48% when it was 500℃. And the increase rate of the glass transition temperature was 13.09%.

关 键 词：纳米SIC 氰酸酯树脂 改性 性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程]