乔辉,徐卜琴,徐桂龙,梁云,胡健

• 1:华南理工大学制浆造纸工程国家重点实验室
• 2:华南理工大学广东省过滤与湿法无纺布复合材料工程研究中心

摘要(Abstract)：

利用双酚A环氧树脂E-51与磷酸制备环氧磷酸(EPPA),通过溶液聚合法制备EPPA改性丙烯酸树脂,并研究环氧磷酸用量对溶液聚合单体转化率的影响。采用红外光谱(FTIR)分析EPPA改性丙烯酸树脂的化学组成;通过热重分析(TGA)、极限氧指数(LOI)和UL-94方法测试EPPA改性丙烯酸树脂的热稳定性和阻燃性能,并利用扫描电镜(SEM)和能谱仪(EDS)观察并测试EPPA改性丙烯酸树脂的残炭微观形貌及元素组成。实验结果表明:随着改性树脂体系中EPPA用量的提高,聚合体系单体转化率逐渐下降,改性丙烯酸树脂的阻燃性逐渐提高。当EPPA的用量为w=30.0%时,改性树脂的LOI值可以达到26.7%,并能通过UL-94测试的V-0级别,700℃的成炭率可达w=24.8%,SEM和EDS对树脂残炭的微观形貌与元素组成分析证明磷元素在改性丙烯酸树脂体系中主要起到凝聚相阻燃作用。

关键词(KeyWords)： 环氧磷酸;丙烯酸树脂;阻燃性能;成炭率

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2015BAE02B00);; 制浆造纸工程国家重点实验室开发基金(201834)

作者(Author): 乔辉,徐卜琴,徐桂龙,梁云,胡健

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