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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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含磷有机硅杂化环氧树脂固化体系性能研究
DOI: 10.3724/SP.J.1105.2012.11107, PP. 148-153
Keywords: 杂化,磷,有机硅,环氧树脂,热性能,阻燃,力学性能,溶胶-凝胶法
Abstract:
通过磷酸与γ-环氧丙氧基三甲氧基硅烷反应得到含磷有机硅氧烷,并加入到环氧树脂/4,4'-二氨基二苯基甲烷体系中混合,通过溶胶-凝胶的方法制备了含磷有机硅杂化环氧树脂固化物.对固化体系进行了玻璃化转变温度、热失重、阻燃、拉伸强度、冲击强度测试分析.结果表明,该固化体系的阻燃性得到提高,极限氧指数在25.8~29.3,玻璃化转变温度得到提高,在161~179℃;虽然初始分解温度比纯环氧树脂固化物低,但800℃残炭率可以达到26.5%,提高了36%;拉伸强度得到提高,在71~94MPa,冲击强度可以达到14.36kJ/m2,提高了14%.该固化体系具有较好的阻燃性能和热性能,同时具有较好的力学性能.
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