Journal
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
Volume 56, Issue 4, Pages 421-434Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2016.1227843
Keywords
Creep; dynamic vulcanization; electron beam irradiation; polymer blend; rheology
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The present study focuses on the variation of the melt rheological characteristics and the creep behavior of both electron beam-cross-linked and peroxide-cured ethylene vinyl acetate/thermoplastic polyurethane blends. The variation of complex viscosity, complex modulus, storage modulus, and loss modulus was evaluated over a wide range of frequency and strain amplitude using rubber process analyzer and the effect of radiation dose and peroxide concentration was investigated in detail. The creep study using dynamic mechanical analyzer shows that the creep behavior of the blends significantly improves after cross-linking and the creep compliance gradually decreases with the increasing radiation dose and peroxide content. An attempt was also made to pursue a comparative rheological and creep study among the peroxide-cured, electron beam-cross-linked and the coagent-treated dynamically vulcanized samples.
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