Morphology and mechanical properties of poly(ethylene brassylate)/cellulose nanocrystal composites

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dc.contributor.authorButron, Amaia
dc.contributor.authorLlorente, Olatz
dc.contributor.authorFernandez, Jorge
dc.contributor.authorMeaurio, Emilio
dc.contributor.authorSarasua, Jose Ramon
dc.contributor.institutionBIOECONOMÍA Y CO2
dc.date.accessioned2024-07-24T12:00:07Z
dc.date.available2024-07-24T12:00:07Z
dc.date.issued2019-10-01
dc.descriptionPublisher Copyright: © 2019 Elsevier Ltd
dc.description.abstractPoly(ethylene brassylate), a novel inexpensive biodegradable polyester, has been reinforced with cellulose nanocrystals (CNCs) with the aim of improving its thermal stability and mechanical properties. The composites have been characterized through calorimetry, tensile tests, thermogravimetry and electron microscopy. The addition of small amounts of CNCs improves both the stiffness and the ductility of the composites, suggesting the existence of some compatibilizing effect. Adding large CNC amounts increases the Young modulus (e.g., 150% for 50 wt% CNCs), but now the material shows brittle behavior. Degradation of the CNCs starts at lower temperature suggesting mutual reactivity. The SEM analysis of the composites with ductile behavior reveals the formation of a percolating network crossing through the interconnected domains that conform a PEB-rich continuous phase. Processing consisting on reinforcement dispersion by sonication followed by melt processing results in composites in which the improvement of mechanical properties does not involve any trade-off.en
dc.description.sponsorshipThe authors are thankful for funds from the Basque Government, Department of Education ( IT-927-16 ) and from the Spanish Ministry of Innovation and Competitiveness MINECO ( MAT2016-78527-P ).
dc.description.statusPeer reviewed
dc.format.extent9
dc.identifier.citationButron , A , Llorente , O , Fernandez , J , Meaurio , E & Sarasua , J R 2019 , ' Morphology and mechanical properties of poly(ethylene brassylate)/cellulose nanocrystal composites ' , Carbohydrate Polymers , vol. 221 , pp. 137-145 . https://doi.org/10.1016/j.carbpol.2019.05.091
dc.identifier.doi10.1016/j.carbpol.2019.05.091
dc.identifier.issn0144-8617
dc.identifier.urihttps://hdl.handle.net/11556/3013
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85066602394&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofCarbohydrate Polymers
dc.relation.projectIDDepartment of Education, IT-927-16
dc.relation.projectIDSpanish Ministry of Innovation and Competitiveness MINECO, MAT2016-78527-P
dc.relation.projectIDEusko Jaurlaritza
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCellulose nanocrystals (CNC)
dc.subject.keywordsMechanical properties
dc.subject.keywordsNanocomposites
dc.subject.keywordsPoly(ethylene brassylate) (PEB)
dc.subject.keywordsOrganic Chemistry
dc.subject.keywordsPolymers and Plastics
dc.subject.keywordsMaterials Chemistry
dc.titleMorphology and mechanical properties of poly(ethylene brassylate)/cellulose nanocrystal compositesen
dc.typejournal article
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