감마선 조사를 이용하여 Poly(ethylene glycol) Methacrylate가그래프팅된 케냐프 섬유를 포함하는 시멘트복합재료의 제조
Preparation of Cement Composites Containing Kenaf Fiber Has Been Gamma-ray Grafted with Poly(ethylene glycol) Methacrylate
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Kenaf fibers have excellent properties and possess the potential to be outstandingreinforcing fillers in cement. The grafting of poly(ethylene glycol) methacrylate (PEGMA) to thekenaf fibers is important in improving the compatibility between the fibers and the cement. PEGMA was grafted onto kenaf fibers using gamma-ray radiation. The radiation dose rangedfrom 20 to 60 kGy, and the dose rate was 10 kGy h-1. The degree of grafting increased withincreased radiation doses. FT-IR analysis revealed an increase in PEGMA content after gammarayradiation induced grafting, further evincing the attachment of PEGMA to the kenaf fibers. The mechanical properties of the gamma-ray grafted kenaf fiber/cement composites weresuperior to those of the ungrafted kenaf fiber/cement specimens.
Abstract
Kenaf fibers have excellent properties and possess the potential to be outstandingreinforcing fillers in cement. The grafting of poly(ethylene glycol) methacrylate (PEGMA) to thekenaf fibers is important in improving the compatibility between the fibers and the cement. PEGMA was grafted onto kenaf fibers using gamma-ray radiation. The radiation dose rangedfrom 20 to 60 kGy, and the dose rate was 10 kGy h-1. The degree of grafting increased withincreased radiation doses. FT-IR analysis revealed an increase in PEGMA content after gammarayradiation induced grafting, further evincing the attachment of PEGMA to the kenaf fibers. The mechanical properties of the gamma-ray grafted kenaf fiber/cement composites weresuperior to those of the ungrafted kenaf fiber/cement specimens.
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