X-ray investigation of polypropylene and poly(ethylene-co-vinyl acetate) blends irradiated with fast electrons WAXS investigation of irradiated i-PP/EVA blends

Citation
M. Mihailova et al., X-ray investigation of polypropylene and poly(ethylene-co-vinyl acetate) blends irradiated with fast electrons WAXS investigation of irradiated i-PP/EVA blends, RADIAT PH C, 56(5-6), 1999, pp. 581-589
Citations number
26
Categorie Soggetti
Physics
Journal title
RADIATION PHYSICS AND CHEMISTRY
ISSN journal
0969806X → ACNP
Volume
56
Issue
5-6
Year of publication
1999
Pages
581 - 589
Database
ISI
SICI code
0969-806X(199911/12)56:5-6<581:XIOPAP>2.0.ZU;2-B
Abstract
Blends consisting of poly(propylene-ethylene) (PP) and poly(ethylene-co-vin yl acetate) (EVA) copolymers were investigated. Specimens were irradiated w ith fast electrons at different doses. Some of the samples show thermo-shri nkable properties. The interplanar spacing, paracrystalline factor, degree of crystallinity and crystallite sizes were determined by WAXS measurements . Results have been reported in respect to PP content and irradiation dose. A decrease of the crystallite's imperfections with the rise of the irradia tion dose was observed. An interface built up of partially interpenetrated amorphous molecular chains of incompatible polymers and separate PP and EVA small crystallites is suggested. (C) 1999 Elsevier Science Ltd. All rights reserved.