曼尼希改性三元醚胺与双氰胺共固化环氧体系  

The Modification of Tertiary Jeffamine and Dicyandiamide Co-curing Epoxy System by Mannich Reaction

作　　者：赵明[1] 孙明明[1,2] 张斌[1,2] 张雪[1] 张绪刚[1,2] 李坚辉[1] 王磊[1] 薛刚[1] 

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江省科学院高新技术研究院,黑龙江哈尔滨150020

出　　处：《化学与粘合》2016年第1期47-49,共3页Chemistry and Adhesion

基　　金：黑龙江省科学院春苗基金资助

摘　　要：对三元醚胺环进行了曼尼希反应改性。改性胺中含水量对双氰胺共混环氧体系拉伸剪切强度影响显著。讨论了不同原料配比产物对共混体系力学性能的影响,加入改性的三元醚胺后双氰胺环氧体系的柔性增加,剥离强度提高到7.48k N/m。动态热分析仪测试的结果显示,共混体系的玻璃化转变温度为95℃。A kind of tertiary jeffamine was modified by Mannich reaction. The effect of mass fraction of water in the Mannich modified amine and dicyandiamide co-curing epoxy system on shear strength was obvious. The effects of proportions of reactants on mechanical properties of the mixed system were studied. The flexibility of dicyandiamide curing epoxy system increased after adding the modified amine, and the peel strength rose to7.48 k N/m. The glass transition temperature of the co-curing epoxy system was 95 ℃ determined by the DMA.

关 键 词：曼尼希反应 环氧树脂 双氰胺 三元醚胺 

分 类 号：TQ314.256[化学工程—高聚物工业]