固化体系对环氧树脂耐高温性能的影响  

Effect of curing system on high temperature resistant properties of epoxy resin

作　　者：陈晓欢[1] 李峰[1] 梁世飘[2] 王海燕[1] 

机构地区：[1]西安交通大学环境与化学工程学院,陕西省西安市710049 [2]西安科技大学材料科学与工程系,陕西省西安市710054

出　　处：《中国胶粘剂》2005年第3期14-17,共4页China Adhesives

摘　　要：针对覆铜板的耐高温要求,分别使用胺类固化剂4,4′-二氨基二苯砜(DDS)、4,4′-二氨基二苯醚(DDE)和乙二胺(EDA)固化改性双酚A型环氧树脂,研制适用于耐高温覆铜板的环氧树脂固化物。用示差扫描量热法(DSC)研究其固化过程,讨论了固化剂用量、固化剂种类及固化温度等因素对固化物玻璃化转变温度(Tg)的影响。实验结果表明,固化物耐热性最好的配比不是化学计量,而是偏离化学计量,在理论用量的基础上适当增加固化剂用量,可有效地提高固化产物的玻璃化温度Tg值;使用芳香胺类固化剂固化双酚A型环氧树脂,其固化产物有较高的玻璃化温度,可以满足覆铜板耐高温的要求。High temperature resistant epoxy resin suitable for copper clad laminate was prepared by curing bisphenol A epoxy resin with amine curing agents of 4,4'-diaminodiphenylsulfone(DDS),4,4'-diamin-odiphenylether(DDE)and ethyldiamine(EDA)respectively. The process of curing was studied by DSC. The effect of curing agent contents,curing agents and curing temperature on the glass transition temperature (Tg) of cured epoxy resin were discussed.The result indicates that the best ratio of the thermal stability deviated from stoichiometry. It can improve the glass transition temperature (Tg) efficiently by the increasing of curing agent amount appropriately on the base of the theoretic dosage. The cured resin can get a higher glass transition temperature(Tg) by using the aromatic amine curing agents,which is suitable for the heat-resisting requirement.

关 键 词：二氨基二苯砜 二氨基二苯醚 环氧树脂 示差扫描量热法 耐高温 覆铜板 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]