WeB-4-1 EB - irradiation Induced Strengthening and Reproducibly of CFRTP

Abstract

Although carbon fiber reinforced thermoplastic polymers (CFRTPs) for aerospace structural materials have been developed to improve the productivity with cost reduction for mass production, it is serious problem of strength deterioration during solidification process. In order to improve the resistance to pull out fibers from thermoplastic polymers matrix, homogeneous electron beam irradiation (HLEBI) for extremely short time was performed. It increased not only the surface energy, but also wettability. Consequently, 100 keV class HLEBI with 0.30 MGy improved the impact value of CFRTPs.