Application of chitosan emulsion as a coating on Kraft paper

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dc.contributor.authorReis, Arlete B.
dc.contributor.authorYoshida, Cristiana M. P. [UNIFESP]
dc.contributor.authorReis, Ana Paula C.
dc.contributor.authorFranco, Telma T.
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionFed Univ Vale Jequitinhonha & Mucuri
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionPackaging Technol Ctr
dc.date.accessioned2016-01-24T14:16:48Z
dc.date.available2016-01-24T14:16:48Z
dc.date.issued2011-06-01
dc.description.abstractKraft paper was coated with chitosan emulsion film. the novelty of this paper is the formation of a packaging bilayer system in only one drying step, which combines a biodegradable polymer emulsion (chitosan and palmitic acid) with Kraft paper. This system is described in detail and characterized for barrier properties (water vapor permeability rate (WVPR), air permeability and water absorption capacity (Cobb test)), mechanical properties (tensile properties, Taber stiffness and tear strength) and structural properties. the application of chitosan coating (3.5 gm(-2), wet basis) on Kraft paper sheets provides a significantly lower WVPR (by ca 43%) and water absorption capacity (by ca 35%) as compared to uncoated Kraft paper. the incorporation of palmitic acid into the chitosan film solutions at 1.8 gm(-2) improves the properties of Kraft paper even more by further reducing the WVPR and water absorption capacity by 51 and 41%, respectively. the air resistance of the coated Kraft systems is lower by 8- and 11-fold compared to uncoated Kraft paper, which could be associated with the chitosan film acting as a gas barrier and as a coating agent that fills the pores between cellulose fibers. (C) 2011 Society of Chemical Industryen
dc.description.affiliationUniv Estadual Campinas, Sch Chem Engn, UNICAMP, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationFed Univ Vale Jequitinhonha & Mucuri, Inst Sci & Technol, Diamantina, MG, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Exact & Earth Sci, Diadema, SP, Brazil
dc.description.affiliationPackaging Technol Ctr, ITAL, Inst Food Technol, CETEA, BR-13070178 Campinas, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Exact & Earth Sci, Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipAlpha POLYLIFE
dc.format.extent963-969
dc.identifierhttp://dx.doi.org/10.1002/pi.3023
dc.identifier.citationPolymer International. Malden: Wiley-Blackwell, v. 60, n. 6, p. 963-969, 2011.
dc.identifier.doi10.1002/pi.3023
dc.identifier.issn0959-8103
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33735
dc.identifier.wosWOS:000291062100016
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofPolymer International
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.subjectchitosan emulsionen
dc.subjectKraft paperen
dc.subjectcoatingen
dc.subjectmechanical propertiesen
dc.subjectmoisture barrieren
dc.titleApplication of chitosan emulsion as a coating on Kraft paperen
dc.typeinfo:eu-repo/semantics/article
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