writer：Liu Yin-Ling,Cai Zhi-Qi,Wang Wei-Cheng,Wen Xiufang,Pi Pihui,Zheng Dafeng,Cheng Jiang,Yang Zhuoru
keywords：curing reaction, dynamic mechanical thermal analysis, liquid crystalline epoxy resins, mechanical properties, thermal properties
source：期刊
specific source：MACROMOLECULAR MATERIALS AND ENGINEERING卷: 296 期: 1 页: 83-91
Issue time：2011年
Liquid-crystalline epoxy thermosets were prepared by adding M1 into DGEBA/DDM blends. M2 was added to DGEBA/DDM to produce thermosets for comparison. The influences of the concentration and chemical structure on the mechanical and thermal properties were investigated systematically. The M1/DGEBA blends possessed increased rubbery plateau modulus, higher glass transition temperatures, and lower tan delta. The use of small amounts of M1 may improve the mechanical properties greatly. Izod notched impact strength could be enhanced by 55% by addition of 2% M1 compared to unmodified DGEBA blends. Extremely rough and highly deformed fracture surface could be obtained in the M1/DGEBA blends. M1/DGEBA blends also exhibited excellent thermal properties.