Blends of ethylene-co-vinyl acetate and poly(3-hydroxybutyrate) with adhesion property
| Autor: | Andrés Jesús Yáñez-Pacios, Laura Marín-Perales, Sara Sancho-Querol, Alfonso De Lucas-Freile, José Miguel Martín-Martínez |
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| Přispěvatelé: | Universidad de Alicante. Departamento de Química Inorgánica, Adhesión y Adhesivos |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Química Inorgánica
Ethylene Materials science Polymers and Plastics General Chemical Engineering Organic Chemistry Poly-3-hydroxybutyrate Tack Adhesion lcsh:Chemical technology chemistry.chemical_compound chemistry Chemical engineering Polymer blends and alloys Ethylene-co-vinyl acetate Materials Chemistry Vinyl acetate Poly (3-hydroxybutyrate) lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials lcsh:TP1-1185 Physical and Theoretical Chemistry Poly(3-hydroxybutyrate) |
| Zdroj: | eXPRESS Polymer Letters, Vol 12, Iss 7, Pp 600-615 (2018) RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| Popis: | The structure and properties of ethylene-co-vinyl acetate (EVA) and poly(3-hydroxybutyrate) (PHB) blends depended on their PHB content, i.e. PHB phase dominated the structure for amounts of PHB higher than 50 wt%, whereas EVA phase is dominant for PHB content lower than 50 wt%. EVA/PHB (70:30) blend showed unexpected different structure because of higher miscibility and the creation of new interfacial interactions between C=O and CH3 groups of PHB and CH3 and C=O groups of EVA, these interactions led changing of the phase structure of ethylene and vinyl acetate domains in EVA. As a consequence, improved thermal, viscoelastic and morphological properties were obtained. EVA+PHB blends containing 60 wt% or more PHB did not show tack and, interestingly, the addition of 20–30 wt% PHB enhanced the tack and displaced the maximum tack of pure EVA to lower temperature. The tack of EVA/PHB (70:30) blend was the highest among all blends because of its particular structure, fibrillation was also shown. Finally, the adhesion of EVA+PHB blends containing 20–30 wt% PHB to polypropylene (PP) substrate was higher than the one of pure EVA because of the interactions between the ethylene domains in EVA phase of the blend and PP substrate surface. |
| Databáze: | OpenAIRE |
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