严伟;李乾波;杨春林;王番;谭廷艳;何江;

• 1:贵阳学院化学与材料工程学院
• 2:贵州省建设职业技术学院

摘要(Abstract)：

采用1-芘丁酸(PBA)对石墨烯片(GNS)进行表面修饰,并制备阻燃环氧树脂(EP)复合材料。通过傅里叶红外光谱(FTIR)、热失重分析(TGA)对改性石墨烯片(f-GNS)进行结构表征,并利用锥形量热仪、扫描电子显微镜(SEM)等对EP复合材料的阻燃性能、残炭微观结构、热稳定性能进行研究。结果表明:PBA成功地对GNS表面进行了修饰。当f-GNS添加量为0.8%时,阻燃EP复合材料的初始分解温度及残炭率分别达到414℃和24.2%,比纯EP提高了14℃和5%,这表明f-GNS能够改善EP基体的热稳定性,从而起到一定的阻燃作用。随着f-GNS添加量的提高,阻燃EP复合材料的热释放速率峰值逐渐降低,燃烧后的炭层向表面富集,起到阻隔氧气和热量传递的作用,进而延缓EP基体的燃烧。

关键词(KeyWords)： 环氧树脂;1-芘丁酸;石墨烯片;表面修饰;阻燃性能

Abstract:

Keywords:

基金项目(Foundation): 贵州省教育厅自然科学研究项目(黔教合KY字[2015]400);; 贵阳市科技局-贵阳学院专项资金(GYU-KYZ[2018]03-1)

作者(Authors): 严伟;李乾波;杨春林;王番;谭廷艳;何江;

DOI: 10.15925/j.cnki.issn1005-3360.2018.10.004

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