Structure dependence of gamma ray irradiation effects on polyurethane and epoxy resin studied by PAL technique
Other Title(s)
دراسة تأثير أشعة كاما على البنية التركيبية لبولي يوراثين وراتنج الايبوكس باستخدام تقنية عمر فناء البوزترون
Author
Source
Issue
Vol. 13, Issue 27 (31 Aug. 2015), pp.157-163, 7 p.
Publisher
University of Baghdad College of Science
Publication Date
2015-08-31
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Abstract EN
Positron annihilation lifetime (PAL) technique has been employed to study the microstructural changes of polyurethane (PU), EUXIT 101 and epoxy risen (EP), EUXIT 60 by Gamma-ray irradiation with the dose range (95.76 - 957.6) kGy.
The size of the free volume hole and their fraction in PU and EP were determined from ortho-positronium lifetime component and its intensity in the measured lifetime spectra.
The results show that the irradiation causes significant changes in the free volume hole size (Vh) and the fractional free volume (Fh), and thereby the microstructure of PU and EP.
The results indicate that the γ-dose increases the crystallinity in the amorphous regions of PU and increase the cross-linking of EP.
American Psychological Association (APA)
Husayn, Haydar Salim. 2015. Structure dependence of gamma ray irradiation effects on polyurethane and epoxy resin studied by PAL technique. Iraqi Journal of Physics،Vol. 13, no. 27, pp.157-163.
https://search.emarefa.net/detail/BIM-721563
Modern Language Association (MLA)
Husayn, Haydar Salim. Structure dependence of gamma ray irradiation effects on polyurethane and epoxy resin studied by PAL technique. Iraqi Journal of Physics Vol. 13, no. 27 (2015), pp.157-163.
https://search.emarefa.net/detail/BIM-721563
American Medical Association (AMA)
Husayn, Haydar Salim. Structure dependence of gamma ray irradiation effects on polyurethane and epoxy resin studied by PAL technique. Iraqi Journal of Physics. 2015. Vol. 13, no. 27, pp.157-163.
https://search.emarefa.net/detail/BIM-721563
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 162-163
Record ID
BIM-721563