EXPLORATION OF INTERFACE COMPATIBILITY OF ARAMID FIBER/EPOXY PREPREG

Abstract

Abstract: A good match of resin matrix and reinforced fibers was necessary for prepreg. Therefore, the surface modification of aramid fiber and the toughening of epoxy resin were summarized to improve the interface compatibility of aramid fiber/epoxy prepreg. The merits and demerits of the physical and chemical modification of surface of aramid fiber were discussed. Various toughening methods of interphase and epoxy resin were analyzed and PU(polyurethane)/EP(epoxy) IPN(interpenetrating polymer network) was highlighted. The combination of surface modification of aramid fiber with coupling agents and PU toughening epoxy resin was suggested to be a practicable approach to improve the interlaminar shear strength (ILSS) of aramid fiber/epoxy prepreg.

Key words: aramid fiber, prepreg, surface modification, PU, toughening

CLC Number:

TB332

SUN Wen-dan, LI Bo, LI Gang, YANG Xiao-ping. EXPLORATION OF INTERFACE COMPATIBILITY OF ARAMID FIBER/EPOXY PREPREG[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(2): 75-80.

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