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AuthorAl-Qaradawi, I. Y.
Available date2023-11-19T08:18:17Z
Publication Date2003-01-01
Publication NameRadiation Physics and Chemistry
Identifierhttp://dx.doi.org/10.1016/S0969-806X(03)00207-X
CitationAl-Qaradawi, I. Y. (2003). Electron irradiated low-density polyethylene studied by positron annihilation lifetime spectroscopy. Radiation Physics and Chemistry, 68(3-4), 467-470.‏
ISSN0969806X
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0141627391&origin=inward
URIhttp://hdl.handle.net/10576/49479
AbstractA study of the degree and rate of cross-linking of low-density polyethylene (LDPE) as a result of irradiation by high-energy electron beam has been performed using positron annihilation lifetime (PAL) technique. The PAL measurements were carried out at room temperature with a conventional fast-fast coincidence system. The lifetime spectra were analysed into four components using the PATFIT program to extract the positron parameters such as lifetime, mean lifetime, intensities, free volume radius, and fractional free volume. Almost all parameters exhibited differences between the unirradiated and irradiated LDPE. It can be concluded that the effect of irradiation on polyethylene results in intensive network formation, which is intensified as the electron energy is increased. The results manifest another proof of the usefulness of positron techniques in the study of the microstructure of polymers. © 2003 Elsevier Ltd. All rights reserved.
Languageen
PublisherElsevier Ltd
SubjectCross-linking
Electron irradiated
Low-density polyethylene
Polymers
TitleElectron irradiated low-density polyethylene studied by positron annihilation lifetime spectroscopy
TypeConference Paper
Pagination467-470
Issue Number3-4
Volume Number68
dc.accessType Abstract Only


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