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dc.contributor.authorLópez Gil, Alberto
dc.contributor.authorRodríguez Pérez, Miguel Ángel
dc.contributor.authorde Saja, José Antonio
dc.contributor.authorBellucci, Felipe Silva
dc.contributor.authorArdanuy Raso, Mònica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera
dc.date.accessioned2014-10-09T10:38:05Z
dc.date.available2014-10-09T10:38:05Z
dc.date.created2014-07-14
dc.date.issued2014-07-14
dc.identifier.citationLópez, A. [et al.]. Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement. "Polímeros: Ciência e Tecnologia", 14 Juliol 2014, vol. 24, p. 36-42.
dc.identifier.issn0104-1428
dc.identifier.urihttp://hdl.handle.net/2117/24316
dc.description.abstractBiodegradable polymers are starting to be introduced as raw materials in the food-packaging market. Nevertheless, their price is very high. Starch, a fully biodegradable and bioderived polymer is a very interesting alternative due to its very low price. However, the use of starch as the polymer matrix for the production of rigid food packaging, such as trays, is limited due to its poor mechanical properties, high hidrophilicity and high density. This work presents two strategies to overcome the poor mechanical properties of starch. First, the plasticization of starch with several amounts of glycerol to produce thermoplastic starch (TPS) and second, the production of biocomposites by reinforcing TPS with promising fibers, such as barley straw and grape waste. The mechanical properties obtained are compared with the values predicted by models used in the field of composites; law of mixtures, Kerner-Nielsen and Halpin-Tsai. To evaluate if the materials developed are suitable for the production of food-packaging trays, the TPS-based materials with better mechanical properties were compared with commercial grades of oil-based polymers, polypropylene (PP) and polyethylene-terphthalate (PET), and a biodegradable polymer, polylactic acid (PLA)
dc.format.extent7 p.
dc.language.isoeng
dc.rightsAttribution 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria paperera::Productes paperers
dc.subjectÀrees temàtiques de la UPC::Enginyeria paperera::Indústria paperera
dc.subject.lcshPolymers--Biodegradation
dc.subject.lcshFood--Packaging--Materials
dc.subject.lcshStarch--Thermal properties
dc.subject.otherBiodegradable
dc.subject.otherStarch
dc.subject.otherThermoplastic starch
dc.subject.otherBiocomposites
dc.subject.otherFood packaging
dc.subject.otherNatural fibres
dc.subject.otherBarley
dc.subject.otherGrape
dc.titleStrategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement
dc.typeArticle
dc.subject.lemacPolímers -- Biodegradació
dc.subject.lemacEnvasos d'aliments -- Innovacions tecnològiques
dc.subject.lemacMidó -- Propietats tèrmiques
dc.contributor.groupUniversitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil
dc.identifier.doi10.4322/polimeros.2014.054
dc.relation.publisherversionhttp://revistapolimeros.org.br/
dc.rights.accessOpen Access
local.identifier.drac14995298
dc.description.versionPostprint (published version)
local.citation.authorLópez, A.; Rodríguez-Pérez , M.A.; de Saja, J.; Bellucci, F.S.; Ardanuy, M.
local.citation.publicationNamePolímeros: Ciência e Tecnologia
local.citation.volume24
local.citation.startingPage36
local.citation.endingPage42


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