Toughening of Epoxy Resin with Microspheres

作     者：Jin, SJ Feng, SB Pang, JQ Hua, XL Li, YM Yu, YH 

作者机构：Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1996年第12卷第1期

页      面：46-50页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：Epoxy resins 

摘      要：Special microspheres dispersed in epoxy resin prior to curing can toughen brittle resin by formation of a second phase. In this work, rigid particles (HP), hollow particles (PO) and rubber powders (PR) are used to modify epoxy resins for the study on the toughening mechanism. The single-edge notched three-point bending test and T peel test have been used to measure the toughness of epoxy resin. The morphology (particle/matrix interfacial shape) of epoxy resin modified with these three kinds of microspheres has been investigated by transmission electron microscopy (TEM). The results show that these three kinds of modifiers are all effective, and the core-shell rubber particle (PR) is the best toughening modifier among them. It is also found that the toughening effect is dependent on the morphology of the interface between the particles and matrix and the different curing conditions really result in obviously different interface states. The excellent interfacial interaction plays a significant role in toughening epoxy resin.