环氧树脂/三乙二醇二乙烯基醚光聚合和固化产物的动态力学性能

Photopolymerization of E44/Triethylene Glycol Divinyl Ether and Dynemic Mechanical Properties of Cured Products

以４，４＇－二苯硫钅翁基二苯硫醚六氟磷酸盐（ＢＤＳ）和环戊二烯基异丙苯六氟磷酸盐（Ｆｅ－Ａｒ）为光引发剂，研究了环氧树脂（Ｅ４４）／三乙二醇二乙烯基醚（ＴＧＤＶＥ）混合体系的光聚合．ＢＤＳ的引发活性高于Ｆｅ－Ａｒ．固化产物动态力学性能的测定表明该两组分可具有较好的相容性；组成影响两者的相容性和物理机械性能；适量的ＴＧＤＶＥ既可提高环氧树脂的抗张强度又能改善其脆性．

The photopolymerization of epoxy resin (E44)/triethylene glycol divinyl ether (TGDVE) system was studied by using 4,4'diphenylsulfoniumdiphenylthioether hexafluorophosphate (BDS) or cyclopentadienylcumene iron hexafluorophosphate(FeAr) as photoinitiators. The activity of BDS is higher than FeAr. Determination of the dynamic mechanical properties of the cured product indicates that the two components are compatible. The composition affects the compatibility and the physicomechanical properties. Adding appropriate amount of TGDVE may not only increase the tensile strength of the epoxy resin but also decrease its brittleness. 