PROBLEM TO BE SOLVED: To provide a method for manufacturing a molding, above all a medical implant, excellent in terms of abrasion resistance, oxidation resistance, and dynamic characteristics.SOLUTION: The provided molding is manufactured by irradiating a molding including an ultra-high-molecular-weight polyethylene and vitamin E with a radiation so as to cross-link the ultra-high-molecular-weight polyethylene and by immersing the molding within a radical scavenger solution so as to diffuse the radical scavenger within the molding and to scavenge vitamin E radicals formed as a result of the irradiation of the radiation.COPYRIGHT: (C)2014,JPO&INPIT【課題】耐摩耗性、耐酸化性及び力学特性に優れた成形品、特に医療用インプラントの製造方法を提供すること。【解決手段】超高分子量ポリエチレンとビタミンEを含有する成形品に放射線を照射して超高分子量ポリエチレンを架橋させてから、該成形品をラジカル捕捉剤溶液に浸漬してラジカル捕捉剤を成形品中に拡散させて、前記放射線の照射によって形成されたビタミンEラジカルを捕捉することによって成形品を製造する。【選択図】図15
