Preparation of Acrylic Acid-grafted Kenaf Fibers Using E-beam Irradiation and Evaluation of Permeability of Kenaf Fiber-cement Composites

전자선을 이용한 아크릴산 그라프트 케냐프 섬유의 제조 및 이를 이용한 케냐프 섬유보강 시멘트의 투수특성 평가

The kenaf is quickly developing as a renewable resource. Kenaf can be grown under a wide range of weather conditions. Modification of kenaf fiber by graft polymerization provides a significant route to alter the chemical properties, including surface hydrophilicity or hydrophobicity. In this study, kenaf fiber surfaces were grafted with acrylic acid as a hydrophilic group using electron beam irradiation. The grafting rate increased with an increase in grafting time. The FT-IR results confirmed that acrylic acid was successfully grafted onto the kenaf fibers. The wettability of the kenaf fiber was increased, accompanied by acylic acid grafting on the fiber surface. According to the permeability test result, it was found that acrylic acid grafted kenaf fiber reinforced cement composite was more reduced than non-grafted kenaf fiber reinforced cement composite.