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U.S. Department of Energy
Office of Scientific and Technical Information

POLYETHYLENE OF IMPROVED STABILITY

Patent ·
OSTI ID:4168933
Radioinduced cross-linking in polyethylene is increased if the irradiation is done while in a modified state. This state is accomplished by heating to 110 or 150 deg C and then cooling to irradiation temperature at which crystallization would normally occur. In an example, 2-mil polyethylene film samples (m.w. = 21,100) were heated at 150 deg C to destroy crystallinity and cooled in 1 or 2 min to irradiation temperatures ranging from -200 to +200 deg C, and percent cross-linking was compared for the samples after 7.8 x l0/sup 6/R. The modified polyethylene had more crosslinking and more physical stability. (T.R.H.)
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-14-008485
OSTI ID:
4168933
Report Number(s):
GB 818963
Country of Publication:
United Kingdom
Language:
English

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