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Biodegradable nanocomposite films based on sodium alginate and cellulose nanofibrils

2016Journal article Open access
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dc.contributor.authorDeepa, B.
dc.contributor.authorAbraham, Eldho
dc.contributor.authorPothan, Laly
dc.contributor.authorCordeiro, Nereida
dc.contributor.authorFaria, Marisa
dc.contributor.authorThomas, Sabu
dc.date.accessioned2021-04-22T15:50:57Z
dc.date.available2021-04-22T15:50:57Z
dc.date.issued2016
dc.description.abstractBiodegradable nanocomposite films were prepared by incorporation of cellulose nanofibrils (CNF) into alginate biopolymer using the solution casting method. The effects of CNF content (2.5, 5, 7.5, 10 and 15 wt %) on mechanical, biodegradability and swelling behavior of the nanocomposite films were determined. The results showed that the tensile modulus value of the nanocomposite films increased from 308 to 1403 MPa with increasing CNF content from 0% to 10%; however, it decreased with further increase of the filler content. Incorporation of CNF also significantly reduced the swelling percentage and water solubility of alginate-based films, with the lower values found for 10 wt % in CNF. Biodegradation studies of the films in soil confirmed that the biodegradation time of alginate/CNF films greatly depends on the CNF content. The results evidence that the stronger intermolecular interaction and molecular compatibility between alginate and CNF components was at 10 wt % in CNF alginate films.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDeepa, B., Abraham, E., Pothan, L. A., Cordeiro, N., Faria, M., & Thomas, S. (2016). Biodegradable nanocomposite films based on sodium alginate and cellulose nanofibrils. Materials, 9(1), 50.pt_PT
dc.identifier.doi10.3390/ma9010050pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3321
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCellulose nanofibrilspt_PT
dc.subjectSodium alginatept_PT
dc.subjectNanocomposite filmspt_PT
dc.subjectSolvent castingpt_PT
dc.subjectMechanical propertiespt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleBiodegradable nanocomposite films based on sodium alginate and cellulose nanofibrilspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.startPage50pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume9pt_PT
person.familyNamecordeiro
person.familyNameFaria
person.givenNamenereida
person.givenNameMarisa Camacho Gonçalves
person.identifier1612636
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.ciencia-idD716-6F48-AD0E
person.identifier.orcid0000-0001-6006-3415
person.identifier.orcid0000-0002-9158-6961
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication57ef72f0-8e40-4853-b4ab-416884e127fa
relation.isAuthorOfPublication.latestForDiscovery57ef72f0-8e40-4853-b4ab-416884e127fa

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