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AuthorAl-Qaradawi, I. Y.
AuthorMadi, N. K.
Available date2023-11-19T08:09:23Z
Publication Date2004-01-01
Publication NameMaterials Science Forum
Identifierhttp://dx.doi.org/10.4028/www.scientific.net/msf.445-446.265
CitationAl-Qaradawi, I. Y., & Madi, N. K. (2004, February). Positron annihilation lifetime study of helium ions implanted polyethylene blends. In Materials Science Forum (Vol. 445, pp. 265-267). Trans Tech Publications Ltd.‏
ISBN9780878499366
ISSN02555476
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=3142758843&origin=inward
URIhttp://hdl.handle.net/10576/49477
AbstractThe structural defects of linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) blends implanted with helium ions were investigated using position annihilation lifetime (PAL) technique. The positron annihilation lifetime measurements were carried out at room temperature with a conventional fast-fast coincidence system. The lifetime spectra were analyzed into four components using the PATFIT program to extract the positron parameters such as lifetime components, and their corresponding intensities. Almost all parameters exhibited a correlation with microstructure changes resulting from implantation. The results were further discussed by comparison with modifications in the morphology of implanted samples using Scanning Electron Microscope (SEM) and Differential Scanning Calorimeter (DSC). Virgin Samples of Polyethylene blends are shown to be miscible by singlet DSC melting temperatures. After ion implantation the thermal properties of blends exhibit different behaviors depending on ion fluence and blending ratio i.e. polymer structure.
Languageen
PublisherTrans Tech Publications Ltd
SubjectCross-Linking
He-Ion Implantation
Polyethylene Blends
Polymers
TitlePositron annihilation lifetime study of helium ions implanted polyethylene blends
TypeConference Paper
Pagination265-267
Volume Number445-446
dc.accessType Abstract Only


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