作　　者： ; ; ; ;

机构地区： 华南师范大学

出　　处： 《化工新型材料》 2009年第9期112-115,共4页

摘　　要： 采用化学结构改性的方法,以萘酚和福尔马林溶液为原料,合成了分子骨架中相对于苯基体积较大、刚性强、平面结构、疏水性高的萘环为主链结构环氧树脂-2,2’-二缩水甘油醚基-1,1’-联萘(DGEBN)和邻邻’-二缩水甘油醚基-二萘基-亚甲基(DGEFN);然后分别以双氰双胺(DICY)、4,4’-二氨基-二苯基甲烷(DDM)、4,4’-二氨基-二苯基砜(DDS)作为固化剂,对DGEBN、DGEFN、DGEBA固化体系性质进行研究;研究结果表明,萘基环氧树脂固化物比苯基环氧树脂(DGEBA)固化物具有更高的玻璃化转变温度(Tg),极好的热稳定性和较低的吸湿性,是一种高性能的新型环氧树脂体系。 A series of novel epoxy were synthesized by 1-naphthol and formalin or 2-naphthol and ferric chloride crystal（FeCl3）, respectively. The chemical structures of synthesized were characterized with FTIR. The result showed that epoxy resins and DGEBA were cured with 4,4＇-diaminodiphenyl sulfone （DDS）, 4,4＇-methylenedianiline （DDM）, dicyandiamide （DICY）, respectively,and the cured products were investigated with FTIR, DSC, TMA, TGA. The investigation indicated that all cured naphthol-based epoxy resins showed remarkably higher glass transition temperature （Tg）,low coeff-icient of thermal expansion（CTE） and moisture resistance compared to DGEBA of phenyl based. This result can be attribute to the high-rigid, planar and better hydrophobicity naphthalene structure and being dense in molecular packing of the network in the backbone of epoxy resins.

关 键 词： 萘酚 疏水性 玻璃化转变温度 热稳定性 吸湿稳定性

领　　域： [化学工程] [化学工程]