RESEARCH ON REACTION CHARACTERISTICS OF CBT RESIN AND MECHANICAL PROPERTIES OF THEIR GLASS FIBER REINFORCED COMPOSITES

Abstract

Abstract: The reaction characteristics of cyclic butylene terephthalate (CBT) resin, CBT100 and CBT160 resin, were analyzed. The influence of three kinds of tin catalysts on CBT100 resin low viscosity pot life and polymerization time at high temperature was studied. Glass fiber reinforced poly(cyclic butylene terephthalate) (PCBT) composite materials were prepared by resin powder melting and impregnation molding process and high temperature vacuum assisted resin transfer molding (VARTM) process respectively and their mechanical properties were compared. The research result showed that CBT160 resin reacted rapidly at high temperature and it was suitable for molding processes similar to resin powder melting and impregnation molding process. CBT100 resin could obtain proper pot life and polymerization time by adding certain amount butyl tin tris-2-ethyl hexanoate or butyltintris(2-ethylhexoate) catalyst, enabling it suitable for high temperature VARTM process. Glass fiber reinforced PCBT composites prepared by high temperature VARTM process using CBT100 resin and butyl tin tris-2-ethyl hexanoate catalyst has excellent mechanical properties, which was slightly better than that made by powder melting and impregnation molding process using CBT160 resin.

Key words: cyclic butylene terephthalate, thermoplastic composites, resin powder melting and impregnation molding, high temperature vacuum assisted resin transfer molding, mechanical properties

CLC Number:

TB332

MU Shu-xiang, DU Wei. RESEARCH ON REACTION CHARACTERISTICS OF CBT RESIN AND MECHANICAL PROPERTIES OF THEIR GLASS FIBER REINFORCED COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(6): 12-17.

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