Cross-Linked Thermoplastic Blends of Polyethylene with an Elastomer 2. Some Structural Characteristics and Their Relationship with Mechanical Properties |
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Authors: | O. Bocok J. Zicans I. Kalnins |
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Affiliation: | (1) Institute of Polymer Materials, Riga Technical University, Riga, LV-1048, Latvia |
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Abstract: | Results of an experimental investigation into the changes of some structural characteristics of binary blends of high-density polyethylene and low-density polyethylene with an elastomer (ethylene-propylene-dicyclopentadiene terpolymer, EPDM) in the course of γ-radiation and chemical cross-linking are reported for a wide range of component ratios. The data on changes in the crystallinity, density of the blends, content of the cross-linked part, as well the correlation of these characteristics with some mechanical properties, are discussed. Suggestions are put forward about the possibility of formation of a combined amorphous PE-EPDM phase with a higher structural arrangement than that in the individual components.__________Translated from Mekhanika Kompozitnykh Materialov, Vol. 41, No. 4, pp. 545–562, July–August, 2005. |
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Keywords: | polyethylene ethylene-propylene-dicyclopentadiene terpolymer polymer blend radiation cross-linking chemical cross-linking density crystallinity extent of cross-linking mechanical properties |
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