松香基环氧树脂的合成及性能研究

Study on synthesis and properties of epoxy resin based on rosin

摘要:

通过丙烯酸松香(AR)与1,4-丁二醇二缩水甘油醚(BDGE)、1,6-己二醇二缩水甘油醚(HDGE)酯化反应合成出松香基环氧树脂预聚体(ARBDGE、ARHDGE)，丙烯酸松香与二乙烯三胺(DETA)、四乙烯五胺(TEPA)酰胺化反应合成出松香基聚酰胺固化剂(ARDETA、ARTEPA)，测试了理论配比下反应生成固化物的玻璃化转变温度(Tg)及性能；结果表明松香基固化物硬度中等、划格实验≦3级、T-弯均为0级、耐冲击性能≧60kg•cm，耐化学腐蚀合格，紫外加速老化30d无任何变化。

Abstract:

Epoxy prepolymers were prepared via esterification reaction between acrylic acid rosin and 1,4-butanediol diglycidylether/1,6-hexanediol diglycidylether. Polyamide hardeners were synthesized via amidation reaction between acrylic acid rosin and diethylenetriamine/tetraethylenepentamine. Then a new series of polymers were obtained through the reaction between prepolymers and polyamide hardeners stoichiometrically. The tests showed the new polymers had moderate degree of hardness; cross cut test, less than 3; T-Bend, 0; impact resistance, more than 60kg•cm; chemical resistance, passed; and aging under ultraviolet lights for 30d, intact.