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    한국섬유공학회지, Vol.55, No.4, pp. 280-285, 2018
    내진보강용 탄소섬유 복합사 하이브리드 그리드 직물 제조 및 공학적 성능 평가. I. 탄소섬유 복합사 제조 및 최적 직물 설계
    Manufacture and Engineering Evaluation of Hybrid Grid Fabrics for Seismic Reinforced Carbon Fiber Composite Yarns. I. Manufacture of Carbon Fiber Composite Yarn and Fabric Design
     
    연우 · 차주희 · 채철수 · 이형호 · 전한용
     
    In this study, a carbon fiber composite yarn with the desired stiffness and ductility was fabricated for use in hybrid grid fabrics for seismic reinforcement, and the optimum structures of the grid fabrics were evaluated. Carbon fiber composite yarn was prepared by a double-covering process with carbon fiber/aramid fiber/high-strength PET fiber. It was confirmed that the strength of the carbon fiber composite yarn was greatly increased compared to that of carbon fiber, and the elongation increased by about 0.5%. The TPU (thermoplastic polyurethane) extrusion coating method was more suitable for the carbon fiber composite yarn than urethane impregnation for the coating process. Meanwhile, in the evaluation of yarn fineness and grid structure, thick fibers had greater strengths. When comparing the strength and elongation, the bi-directional grid showed no advantages over the unidirectional grid.
     
    Keywords : hybrid grid fabrics, seismic reinforcement, carbon fiber composite yarns, double covering, TPU(thermoplastic poly urethane) extrusion coating
    DOI :
     
    Full text(PDF)  내진보강용 탄소섬유 복합사 하이브리드 그리드 직물 제조 및 공학적 성능 평가. I. 탄소섬유 복합사 제조 및 최적 직물 설계