玻璃钢/复合材料Issue(3)：5-10,6.
聚醚砜增韧环氧树脂的力学性能及固化体系相分离
MECHANICAL PROPERTIES AND PHASE SEPARATION OF EPOXY RESIN TOUGHENED BY POLYETHER SULFONE
摘要
Abstract
Epoxy resin had been widely used in light industry,construction,machinery,aerospace,etc.But after curing,there were some disadvantages such as high crosslink density,excessive internal stress,crisp,poor fatigue resistance and impact resistance.Those shortcomings limite its application in a number of high-tech fields.In this paper,polyether sulfone (PES) was used to toughen epoxy resin.Different proportions of PES/E51 system were prepared by hot melt.Hot stage microscope,SEM and mechanical tests were applied to investigate morphologies and structures of E51 modified by PES,and also to evaluate fracture surface,phase separation,strength and toughness of castings.The results show that PES can dissolve in the E51 by hot melt in the absence of solvent.At PES content of 15wt％,the tensile strength and impact strength of castings increased by 130％ and 200％.Phase separation occurred when the castings were cured.PES formed a semi-continuous or continuous phase structure in the E51.When PES was 15wt％,bicontinuous structure appeared in the castings.关键词
聚醚砜/环氧树脂/力学性能/相分离Key words
PES/epoxy resin/mechanical properties/phase separation分类
通用工业技术引用本文复制引用
贾文品,周金利,余木火,韩克清,朱姝,程超..聚醚砜增韧环氧树脂的力学性能及固化体系相分离[J].玻璃钢/复合材料,2017,(3):5-10,6.基金项目
国家自然科学基金青年科学基金项目(21404023) （21404023）
上海市科学技术委员会科研计划项目(15JC1400300) （15JC1400300）
中央高校基本科研业务费专项资金资助(2232015D3-10,2232015G1-64) （2232015D3-10,2232015G1-64）
