A novel phthalazinone-bearing epoxy resin, namely TEPZ, was designed and synthesized as functional modifier and prepreg agent for carbon fiber TGDDM epoxy composites by a “one pot two steps” method. Three-dimensional TEPZ/TGDDM/DDS system was constructed and optimized by modulating curing procedure and concentration of DDS to give thermosets with excellent thermal resistance and mechanical strength. The storage modulus and glass transition temperature (T_g) increased significantly with composition of 100 phr TGDDM, 30 phr TEPZ and 40 phr DDS as compared to those of TGDDM/DDS. The tensile strength, impact strength and flexural strength increased simultaneously. Afterwards, continuous unidirectional carbon fiber reinforced laminates were fabricated, followed by systematical investigation of their mechanical and interfacial properties. The interfacial study indicated that the polarity and wettability of TEPZ played an important role during the modification.

设计了一种新型的含酞嗪酮的环氧树脂TEPZ，并通过“一锅两步”法合成了碳纤维TGDDM环氧复合材料的功能改性剂和预浸料。通过调节固化程序和DDS的浓度，构建和优化了三维TEPZ / TGDDM / DDS系统，以提供具有出色的耐热性和机械强度的热固性塑料。储能模量和玻璃化转变温度（T _g与TGDDM / DDS相比，使用100 phr TGDDM，30 phr TEPZ和40 phr DDS的组合可显着提高）。拉伸强度，冲击强度和弯曲强度同时增加。之后，制造了连续的单向碳纤维增强层压板，然后对其力学和界面性能进行了系统研究。界面研究表明，TEPZ的极性和可湿性在改性过程中起着重要作用。