| 改性硅炔树脂及其复合材料的耐热性能 |
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| 引用本文： | 王娜,周权,倪礼忠. 改性硅炔树脂及其复合材料的耐热性能[J]. 医学教育探索, 2012, 25(2) |
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| 作者姓名： | 王娜 周权 倪礼忠 |
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| 作者单位： | 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;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 200238;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 200239 |
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| 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320 MPa，在240 °C的弯曲强度保留率高达90%，空气条件下经500 °C处理7 min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。
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| 关 键 词： | 硅树脂；改性；耐热性；复合材料 |
Modification and Heat Resistance of Hybrid Composite Containing Silicon and Acetylene Resin |
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| WANG N,ZHOU Quan and NI Li zhong. Modification and Heat Resistance of Hybrid Composite Containing Silicon and Acetylene Resin[J]. Researches in Medical Education, 2012, 25(2) |
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| Authors: | WANG N ZHOU Quan NI Li zhong |
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| Affiliation: | Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237,China;Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200238,China;Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200239,China |
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| Abstract: | The silicon containing poly(arylaeetylene) resin (GMD) was synthesized by condensation reaction. The curing the cured GMD was 631°C in nitrogen. The residual of mass was 59% based on the initial mass at 1 000 °C. The flexural the cured GMD was 631°C in nitrogen. The residual of mass was 59% based on the initial mass at 1 000 °C. The flexural strength at room temperature of the composite was 324 MPa and the retention rate of flexural strength was 90% at 240 °C. After heat treated for 7 min at 500°C in air, the retain ratio of the composite was 99.7%. The composite of which Tg was more than 400 °C possessed excellent high temperature resistance properties, excellent mechanical and dielectric properties. |
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| Keywords: | silicon resin modification heat resistance composite |
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