Analyzing antibacterial and antifungal properties of polypropylene/hydroxyapatite composites
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The purpose of this study was to confirm the antifungal and antibacterial properties of polypropylene (PP) added withdifferent weight ratios of hydroxyapatite (HAp). Liquid PP was prepared by applying heat to solid PP. and then, HAp wasadded to liquid PP. According to weight ratios of HAp, three samples were prepared by the injection molding method. Thephase ratio of the sintered powder was measured by a multipurpose X-ray diffractometer (MP-XRD). The XRD resultindicated that the sintered powder component was 95% Ca5(PO4)3(OH) and 3% CaO. That result was the composition of highpurity HAp. ASTM G21 test was conducted to confirm the antifungal properties of the composites. All results showed theabsence of fungi on the composite surfaces. Also, JIS Z 2801 test was conducted to confirm the antibacterial properties of thecomposites. Bacterial growth was found on the surface of the composites containing < 5% HAp. Based on these results, we canconclude that PP/HAp composites with HAp weight ratios of 5% or higher will exhibit desired antifungal and antibacterialproperties.
Abstract
The purpose of this study was to confirm the antifungal and antibacterial properties of polypropylene (PP) added withdifferent weight ratios of hydroxyapatite (HAp). Liquid PP was prepared by applying heat to solid PP. and then, HAp wasadded to liquid PP. According to weight ratios of HAp, three samples were prepared by the injection molding method. Thephase ratio of the sintered powder was measured by a multipurpose X-ray diffractometer (MP-XRD). The XRD resultindicated that the sintered powder component was 95% Ca5(PO4)3(OH) and 3% CaO. That result was the composition of highpurity HAp. ASTM G21 test was conducted to confirm the antifungal properties of the composites. All results showed theabsence of fungi on the composite surfaces. Also, JIS Z 2801 test was conducted to confirm the antibacterial properties of thecomposites. Bacterial growth was found on the surface of the composites containing < 5% HAp. Based on these results, we canconclude that PP/HAp composites with HAp weight ratios of 5% or higher will exhibit desired antifungal and antibacterialproperties.
참고문헌 (23)
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