ポリカーボネート樹脂の応力-歪み曲線に及ぼす電子線照射の影響
2005 年 69 巻 8 号 p. 759-762
詳細
2005 年 69 巻 8 号 p. 759-762
Influences of electron beam irradiation on stress-strain curves of tensile test were studied for polycarbonate resin. The electron beam (EB) irradiation enhanced the tensile strength and ductility. The maximum values were found at 0.2 MGy of EB-irradiation. On the other hand, excess EB irradiation decreased the tensile fracture stress and ductility. To discuss the effect of electron beam on tensile strength and ductility, the dangling bonds formation was evaluated by ESR signals. The enhancements of ductility and fracture stress can be explained by stress relaxation induced by increase in density of dangling bonds.
