Mechanical and Thermal Behavior of Blends of Poly(hydroxybutyrate-co-hydroxyvalerate) with Ethylene Vinyl Acetate Copolymer |
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| Authors: | S. H. El-Taweel M. Khater |
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| Affiliation: | 1. Chemistry Department, Faculty of Science, Cairo University, Orman, Giza, Egypt;2. Chemistry Department, Faculty of Science, Taibah University, Madinah, Saudi Arabia;3. Engineering and Materials Science Department, German University in Cairo, New Cairo City, Egypt |
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| Abstract: | Ethylene vinyl acetate copolymer (EVA), with vinyl acetate contents of 60% or 80%, was used to improve the mechanical properties of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV). Blends of PHBV/EVA were prepared with the ratios of 90:10, 70:30, and 50:50. Stress–strain results indicated that the tensile strength, elongation at break, Young's modulus, and toughness of PHBV blends could be adjusted by changing the composition of blends and miscibility. It was found that high elongation at break, ca. 200%, was obtained for PHBV/EVA80 (50:50). |
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| Keywords: | Differential Scanning Calorimetry (DSC) ethylene vinyl acetate copolymer (EVA) miscibility poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) stress–strain relationship |
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