文献类型：期刊文献

中文题名：改性硅炔树脂及其复合材料的耐热性能

英文题名：Modification and Heat-Resistance of Hybrid Composite Containing Silicon and Acetylene Resin

作者：王娜[1];周权[1];倪礼忠[1]

机构：[1]华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2012

卷号：25

期号：2

起止页码：167

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：硅树脂;改性;耐热性;复合材料

外文关键词：silicon resin modification heat resistance composite

摘要：通过格氏试剂反应制得了改性硅炔杂化树脂(GMD)。采用DSC、TGA等分析方法研究了GMD的固化反应及耐热性能。结果表明:GMD固化物在氮气气氛下质量损失5%时的温度(Td5)为631°C,1 000°C时的质量残留率为59%。所制备的玻璃纤维增强复合材料在常温下的弯曲强度为320MPa,在240°C的弯曲强度保留率高达90%,空气条件下经500°C处理7min后,质量保留率仍达到99.7%。该复合材料的玻璃化温度大于400°C,具有优异的耐热性能、力学性能及介电性能。
The silicon-containing poly（arylaeetylene） resin （GMD） was synthesized by condensation reac- tion. The curing mechanism and heat resistance were studied with DSC and TGA. Results showed that the temperature of 5% mass loss （Tds） of the cured GMD was 631℃ in nitrogen. The residual of mass was 59% based on the initial mass at 1 000 ℃. The flexural strength at room temperature of the composite was 324 MPa and the retention rate of flexural strength was 90% at 240 ℃. After heat treated for 7 rain at 500℃ in air, the retain ratio of the composite was 99.7%. The composite of which Tg was more than 400 ℃ possessed excellent high temperature-resistance properties, excellent mechanical and dielectric properties.