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- 2016
含金刚烷结构环氧树脂的合成与性能
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Abstract:
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%。 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, 1H-NMR and gel permeation chromatography(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 absorption 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. 国家自然科学基金(U1362205)
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