摘要
研究了聚醚砜（ＰＥＳ）／环氧树脂复合体系的微观结构和热－力学性能，分析了ＰＥＳ在环氧树脂基体中的增韧机理。ＰＥＳ／环氧树脂复合体系为两相结构，分散相ＰＥＳ呈不规则的变形颗粒分散在环氧树脂中。加入一定量ＰＥＳ可较大幅度地提高环氧树脂的韧性，而不降低环氧树脂的模量和耐热性。
The microstructure and thermo mechanical properties of polyether sulfone(PES)/epoxy resin composite systems were investigated, and the toughening mechanism of PES in epoxy resin was discussed. The PES/epoxy resin systems are two phase structure. The deformed PES particles are dispersed in the epoxy resin matrix. The toughness of epoxy resin is appreciably enhanced by adding some PES, in the meantime, the modulus and glass transition tempeerature, T g, of epoxy resin are not decreased but increased. The toughening effect comes mainly from the S IPN of PES/epoxy systems and the deformation of the dispersed PES particles in the epoxy resin matrix under the high stresses.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第6期155-157,共3页
Polymer Materials Science & Engineering
基金
国家教委留学回国人员资助
关键词
聚醚砜
环氧树脂
微观结构
力学性
复合体系
polyether sulfone,epoxy resin,microstructures,mechanical properties,toughening mechanism
