STUDY ON THE PROPERTIES AND MECHANISM OF TOUGHENED EPOXY RESIN SYSTEM WITH DIFFERENT CORE SHELL PARTICLES

Abstract

Abstract: Core-shell particles are usually consist of a high glass transition temperature "shell" and a rubber "core". The advantage is that the core-shell structure does not change during the process of resin curing. But the uniform dispersion of nanoparticles has always been a difficult problem in the use of epoxy additives. In this paper, we adopt three different kinds of core-shell particles with different composition and sizes to toughen bisphenol F epoxy resin matrix to prepare a series of epoxy resin system with excellent heat resistance. The dispersion of nano-particles by two steps pre-dispersing is studied to obtain a uniform system. The toughening systems have great improvement on resin toughness. The mechanical properties, thermo-properties, rheological properties and microstructure properties has been tested and analyzed. A multi-scale core-shell nanoparticles toughening epoxy system was prepared and its toughening mechanism is illustrated.

Key words: core shell particles, toughening, epoxy resin, dispersion

CLC Number:

TB332

WANG Jing,XUE Zhong-min,LI Gang*,YANG Xiao-ping. STUDY ON THE PROPERTIES AND MECHANISM OF TOUGHENED EPOXY RESIN SYSTEM WITH DIFFERENT CORE SHELL PARTICLES[J]. Fiber Reinforced Plastics/Composites, 2018, 0(7): 5-11.

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