Gamma Radiation Effects on Mechanical Properties of High-Density Polyethylene (HDPE)
Submission Deadline: Aug. 30, 2017
Lead Guest Editor
Department of Physics, Faculty of Science and Technology, Omdurman Islamic University,
Mohamed Habib El kanzi
Department of Astronomy and Meteorology, Faculty of Science and Technology, Omdurman Islamic University,
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Radiation effects on polymer materials may be cross-linking or scission of polymer chains. The interaction radiations with polymer materials depend on the type of radiation, radiation dose and types of polymeric materials. The cross-linking is the intermolecular bond formation between polymer chains. The degree of cross-linking is proportional to the radiation dose .However , radiation cross-linking is only limited to few applications such as cross –linking of rubber for tyros, cables, pipes and heat shrinkable rubber (improvement of polymer) . In contrast, scission chains is opposite of cross-linking action as, in which the rupturing of C-C bond takes place (degradation of polymer).. A discussion of the effect of radiation on mechanical strength as a consequence of the balance between cross-linking and oxidative degradation is presented in many publications.
Aims and Scope: Use the change in mechanical properties with radiation dose to design polymer dosimeter Improvement of Black PE mechanical properties such as distension, tensile strength and elongation at break The predominance of cross-linking results shows linear relations between distension, tensile strength and elongation at break versus absorbed dose of gamma rays source These relationships between these properties and dose level can be utilized as measuring tool (Dosimeter) for radiation exposure that incident on the HDPE samples