다양한 종류의 실란 커플링제가 탄소섬유의 부착 강도 및 인장강도에 미치는 영향
The effect of various types of silane coupling agents on the bond strength and tensile strength of carbon fiber
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본 연구에서는 섬유 강화 플라스틱의 주재료인 탄소섬유와 에폭시 계열 수지의 결합력을 개선하기 위해 다양한 종류의 실란 커플링제를 적용한 뒤 그에 따른 부착 강도 및 인장강도 변화를 확인하였다. 또한, 탄소섬유의 사이징 제거 유 무를 실험 변수로 두어 수지가 미치는 영향에 대해 분석하였다. 탄소섬유 사이징 제거 유무 및 실란 커플링제 종류에 따라 탄소섬유의 부착 강도 및 인장강도 경향은 상이하게 측정되었다. 두 실험 결과를 종합적으로 고려하였을 때 부착 강도 및 인장강도 개선에 가장 적합한 실란 커플링제는 3GT 및 3TPM인 것으로 판단되었다.
Abstract
In this study, various silane coupling agents were applied to improve the bonding strength between carbon fiber and epoxy-based resins, and the resulting changes in mechanical strength were examined. In addition, the presence or absence of sizing removal on the carbon fibers was used as an experimental variable to analyze the effects of the resin. The bonding strength and tensile strength of carbon fibers varied significantly depending on the presence or absence of sizing removal and the type of silane coupling agent used. Based on a comprehensive analysis of the experimental results, 3GT and 3TPM were determined to be the most suitable silane coupling agents for improving both adhesion and tensile strength.
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