Radiation effects on poly(propylene) (PP)/ethylene–vinyl acetate copolymer (EVA) blends | Zendy

Dalai Siqin | Zendy; Wenxiu Chen | Zendy

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Radiation effects on poly(propylene) (PP)/ethylene–vinyl acetate copolymer (EVA) blends

Author(s) -

Dalai Siqin,

Wenxiu Chen

Publication year - 2002

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.11365

Subject(s) - copolymer , materials science , ethylene vinyl acetate , vinyl acetate , polymer blend , polymer chemistry , thermogravimetric analysis , amorphous solid , ethylene , irradiation , gravimetric analysis , thermal stability , composite material , polymer , chemical engineering , chemistry , organic chemistry , catalysis , physics , nuclear physics , engineering

Radiation effects on poly(propylene)/ethylene–vinyl acetate copolymer (PP/EVA) blends are discussed. Increasing the EVA content enhanced the crosslinking effect of radiation in PP/EVA blends. This effect was significant when the EVA content was ≥50% in PP/EVA blends that were exposed to γ‐ray irradiation in air. This phenomenon is discussed in relation to the compatibility, morphology, and thermal properties of PP/EVA blends. The results indicate that the effect is dependent on the compatibility, the increase in the amorphous region content, and the EVA content in PP/EVA blends. The possible mechanism of radiation crosslinking or degradation in irradiated PP/EVA blends was studied quantitatively by a novel method, a “step analysis” process, and thermal gravimetric analysis. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 3420–3424, 2002

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