摘要
用4,4'-二氨基二苯甲烷(DDM)、4,4'-二氨基二苯砜(DDS)和4,4'-二氨基二苯醚(DDE)三种芳香胺混合固化双酚A型环氧树脂,研究了固化网络的机械性能和热性能,当DDM∶DDS∶DDE质量比为5∶2.5∶1时,可使固化网络的冲击强度得到一定的提高。SEM对固化网络冲击断面的微观结构分析表明,树脂呈韧性断裂。
A kind of bisphenolA diglycidyl (DGEBA) cured with mixed aromatic diamine was studied. The impact strength of DGEBA cured with mixed aromatic diamine was increased by 7.63kJ/m2 and 6.77kJ/m2 than that cured with DDM and DDS respectively. Scanning Electric Microscopy (SEM) studies showed the toughing fracture of cured DGEBA resin.
出处
《中国胶粘剂》
CAS
2003年第2期16-22,共7页
China Adhesives
关键词
环氧树脂
固化
冲击强度
增韧
芳胺
混合芳胺
epoxy resin
curing
impact strength
toughening
aromatic diamine
mixed aromatic diamine
