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dc.contributor.authorVentura Casellas, Heura
dc.contributor.authorLaguna-Gutiérrez, Ester
dc.contributor.authorRodríguez Pérez, Miguel Ángel
dc.contributor.authorArdanuy Raso, Mònica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera
dc.date.accessioned2016-10-17T11:43:48Z
dc.date.available2018-10-02T00:30:35Z
dc.date.issued2016-10-01
dc.identifier.citationVentura, H., Laguna-Gutiérrez, E., Rodríguez-Pérez , M., Ardanuy, M. Effect of chain extender and water-quenching on the properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) foams for its production by extrusion foaming. "European polymer journal", 1 Octubre 2016, vol. 85, p. 14-25.
dc.identifier.issn0014-3057
dc.identifier.urihttp://hdl.handle.net/2117/90797
dc.description.abstractBacterial polyesters such as polyhydroxyalkanoates (PHAs) are of great interest for a large number of applications both because of their properties and because they come from renewable resources, despite having a higher cost than commodity polymers. Their foaming—although it presents some difficulties—could be an option to increase their competitiveness. In this work, two strategies have been studied to enhance the poly(3-hydoxybutyrate-co-4-hydroxybutyrate) (P3HB4HB) foamability by extrusion foaming. The effect of the cooling system (water-quenching or air-cooling), chain extender (CE) addition and chemical blowing agent (CBA) amount were evaluated. Density, cellular morphology, mechanical and thermal properties were studied. Optimal density reduction was achieved with use of CE and 3–4 wt.% of CBA masterbatch. The most effective strategy on density reduction was the addition of CE, while the water quenching had only a slight influence on the samples in which CE was not present. CE addition decreased the viscosity and the degradation rate of the polymer, thus leading to lighter foams with larger cells but with equal or even slightly better resistance to compressive and tensile stress, in general terms
dc.format.extent12 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Indústries químiques::Química tèxtil
dc.subject.lcshPoly-beta-hydroxybutyrate
dc.subject.lcshBiopolymers
dc.subject.lcshExtrusion process
dc.subject.lcshPolyesters
dc.subject.otherPoly(3-hydoxybutyrate-co-4-hydroxybutyrate)
dc.subject.otherBiopolymer
dc.subject.otherChain extender
dc.subject.otherExtrusion foaming
dc.subject.otherMechanical characterisation
dc.titleEffect of chain extender and water-quenching on the properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) foams for its production by extrusion foaming
dc.typeArticle
dc.subject.lemacBiopolímers
dc.subject.lemacPolièsters
dc.subject.lemacExtrusió
dc.contributor.groupUniversitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil
dc.identifier.doi10.1016/j.eurpolymj.2016.10.001
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0014305716303743
dc.rights.accessOpen Access
local.identifier.drac19159020
dc.description.versionPostprint (author's final draft)
local.citation.authorVentura, H.; Laguna-Gutiérrez, E.; Rodríguez-Pérez, M.; Ardanuy, M.
local.citation.publicationNameEuropean polymer journal
local.citation.volume85
local.citation.startingPage14
local.citation.endingPage25


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