Abstract
Gas evolution, oxygen consumption, and change of mechanical property induced by the γ-irradiation of ultra-high molecular weight polyethylene (UHMW-PE) fiber were studied, and compared with those of high density PE (HDPE). Samples were irradiated in oxygen under pressure from 0 to 60 kPa by 60Co γ-ray up to 1.0 MGy at room temperature. For irradiation under vacuum, G(H 2) is 2.4 and G(CH 4) is 2.0 × 10 -3. In the presence of oxygen, G(H 2) was about the same, and the G-values for other hydrocarbons were more than 20 times those under vacuum. The tensile strength of the fiber was decreased greatly by irradiation in oxygen.
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Schedule a callMore From: Radiation physics and chemistry (Oxford, England : 1993)
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