Strength and deformation characteristics of poly(ethylene terephtalate)/elastomer blends |
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| Authors: | R Merijs Meri T Bocoka J Zicans M Kalnins V Kalkis A K Bledzki |
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| Institution: | (1) Institute of Polymer Materials, Riga Technical University, Riga, Latvia;(2) Latvian University, Riga, Latvia;(3) Institute of Materials Technology, Kassel University, Kassel, Germany |
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| Abstract: | Changes in the toughness of crystalline poly(ethylene terephtalate) upon addition of two elastomers — ethylene-propylene-diene
terpolymer and ethylene-α-octene copolymer — are investigated. Blends with increasing elastomer content (up to 30 wt.%) were obtained and modified
by γ-radiation up to a 300-kGy absorbed dose. The interrelation between the toughness and certain tensile characteristics (elastic
modulus, yield stress, ultimate stress, elongation at break, and specific fracture energy) of the blends, with various structural
features of components (crystallinity and the degree of cross-linking) and morphology of the blends, is discussed.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 44, No. 4, pp. 521–534, July–August, 2008. |
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| Keywords: | poly(ethylene terephtalate) ethylene-α -octene copolymer ethylene-propylene-diene termoplymer blends morphology mechanical characteristics |
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