含金刚烷结构环氧树脂的合成与性能

以1,3-二(4-羟基苯基)金刚烷(BHPA)和环氧氯丙烷(ECH)为原料,采用二步法合成了低分子量的1,3-二(4-羟基苯基)金刚烷二缩水甘油醚(DGEBAD),采用FTIR、1H-NMR和凝胶渗透色谱(GPC)分别对其结构和分子量进行了表征并滴定得到其环氧值;采用旋转流变仪对其流变性能进行了表征。使用4,4'-二氨基二苯基甲烷(DDM)固化DGEBAD,对固化DGEBAD-DDM树脂体系的力学性能、吸水率和耐热性进行了测试,得到的固化物的拉伸强度为90 MPa,玻璃化转变温度为163℃, 5%热失重温度高达401℃,吸水率比相同条件下环氧树脂E51-DDM固化物降低了31.60%。 

Synthesis and property of epoxy resin containing adamantane

The diglycidyl ether of 1,3-bis (4-hydroxyphenyl)adamantane(DGEBAD)with low molecular weight was synthesized from 1,3-bis (4-hydroxyphenyl)adamantane (BHPA)and epichlorohydrin (ECH)by two-step method.The structure and molecular weight were confirmed by FTIR,1 H-NMR and gel permeation chromatogra-phy(GPC),and epoxy value was obtained by titration.The rheology property was also characterized by rotational rheometer.DGEBAD was cured with 4,4’-diaminodiphenyl methane (DDM).The mechanical properties,water ab-sorption rate and heat resistance characteristics of the cured DGEBAD-DDM resin system were investigated.The tensile strength and the glass transition temperature of the cured DGEBAD-DDM resin system is 90 MPa and 163 ℃,respectively and 5% mass loss temperature occurs at up to 401 ℃.The water absorption rate of the cured DGEBAD-DDM decreases by 31.60% compared to the cured epoxy resin E51-DDM.