徐卜琴,张岩冲,徐桂龙,杨进,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:滨州学院化学化工学院
• 3: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)：

制备的双氰胺酚醛树脂(DICY-NR)与9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)发生加成反应制备磷-氮改性酚醛树脂(DOPO-DICY-NR),将制备的DOPO-DICY-NR用于固化邻甲酚醛环氧树脂(CNE),并研究固化树脂体系的阻燃性能与机理。通过超高效聚合物色谱(APC)对DOPO-DICY-NR反应过程进行表征,采用热重分析(TGA)研究固化树脂体系的热分解行为,利用锥形量热仪(CONE)、UL-94阻燃性能以及极限氧指数(LOI)测试固化树脂体系的阻燃性能,通过扫描电镜(SEM)观察固化树脂体系的残炭微观形貌。实验结果表明:固化树脂体系中的磷与氮能够产生协效阻燃作用,从而大大提高固化树脂体系的阻燃性能,并降低热释放速率,且随着磷、氮元素含量的增加,固化后树脂体系的阻燃性能愈加优良,当固化树脂体系的磷和氮含量分别达到1.5%(wt)和2.8%(wt)时,固化树脂体系的阻燃性能可以通过UL-94 V-0阻燃等级,LOI达到29%。

关键词(KeyWords)： 环氧树脂;磷、氮改性环氧树脂固化剂;阻燃性能;协效阻然作用

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2017YFB0308100,2017YFB0308000);; 国家科技支撑计划项目(2015BAE02B00)

作者(Author): 徐卜琴,张岩冲,徐桂龙,杨进,梁云,胡健

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