The effect of electron beam irradiation on the morphology and mechanical properties of biaxially drawn ultra-high molecular weight polyethylene dried gel films was investigated as a function of irradiation dose in terms of cross-linking and main-chain scission. Tensile strength and elongation decrease drastically, even with small irradiation doses, while the storage modulus increased with increasing dose up to 20 Mrad over a temperature range from 0 to 120°C. This indicates that electron beam irradiation causes cross-linking and main-chain scission; the former improves heat resistance and the latter causes deterioration of tensile strength.
Посилання на статтю:
Effect of electron beam irradiation on simultaneously biaxially drawn ultra-high molecular weight polyethylene dried gel films / Yoshihiro Sakai*, Kiyonori Umetsu and Keizo Miyasaka // Polymer. – 1993. – Vol 34. – P. 3362-3367.