수분환경에서 탄소섬유강화 에폭시수지 복합재료의 내구성에 대한 나노입자의 영향

Abstract

This study has been investigated on the durability of carbon fiber/epoxy composites(CFRP) in moisture environment. The carbon fiber/epoxy composites were modified to use the different weight percentage of nanoparticles. These hybrid composites were exposed to moisture environment for a certain period of time. Weight gain according to immersion time, quasi-static tensile test and micro-graphic characterization were investigated on the samples exposed to moisture environment. Consequently, the weight gains increased with increasing immersion time and weight gain of the hybrid composites was lower than the one of the CFRP through the whole immersion time. The tensile strengths decreased with increasing immersion time and tensile strength of the hybrid composites were higher than the one of CFRP through the whole immersion time. CFRP was observed more degraded than hybrid composites in moisture environment. Therefore, it was concluded that the addition of nanoparticle in CFRP could lead to improve the durability in moisture environment.