Properties of Paperboard Coated with Natural Polymers and Polymer Blends: Effect of the Number of Coating Layers

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorNaitzel, Thaís de Cássia-
Autor(es): dc.creatorGarcia, Vitor Augusto dos Santos-
Autor(es): dc.creatorLourenço, Carla Alves Monaco-
Autor(es): dc.creatorVanin, Fernanda Maria-
Autor(es): dc.creatorYoshida, Cristiana Maria Pedroso-
Autor(es): dc.creatorCarvalho, Rosemary Aparecida de-
Data de aceite: dc.date.accessioned2025-08-21T18:06:22Z-
Data de disponibilização: dc.date.available2025-08-21T18:06:22Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/foods12142745-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306919-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306919-
Descrição: dc.descriptionPaper is one of the packaging materials that presents a biodegradable character, being used in several areas; however, its barrier properties (gases and fat) and mechanics are reduced, which limits its application. Coating papers with synthetic polymers improve these properties, reducing their biodegradability and recyclability. The objective of this work was to develop and characterize coated paperboard, using the tape casting technique, with different ratios of film form agar–agar/chitosan (AA:CHI, 100:0, 50:50, and 0:100) and different numbers of coating layers (operating times for application of 14.25 min and 28.5 min for one and two layers, respectively). A significant reduction in water absorption capacity was found by applying a 0:100 coating (approximately 15%). Considering all coating formulations, the water vapor permeability reduced by 10 to 60% compared to uncoated paperboard, except for two layers coated with 0:100. The tensile index (independent of AA:CHI) was higher in the machine direction (22.59 to 24.99 MPa) than in the cross-section (11.87–13.01 MPa). Paperboard coated only with chitosan showed superior properties compared to the other formulation coatings evaluated.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFaculty of Animal Science and Food Engineering USP—University of São Paulo, Street Duque de Caxias Norte 225-
Descrição: dc.descriptionFaculty of Agricultural Sciences UNESP—São Paulo State University, Street José Barbosa de Barros 1780-
Descrição: dc.descriptionInstitute of Environmental Chemical and Pharmaceutical Sciences UNIFESP—Federal University of São Paulo, Rua São Nicolau 210-
Descrição: dc.descriptionFaculty of Agricultural Sciences UNESP—São Paulo State University, Street José Barbosa de Barros 1780-
Descrição: dc.descriptionCNPq: 306542/2022-6-
Descrição: dc.descriptionCNPq: 313795/2021-5-
Idioma: dc.languageen-
Relação: dc.relationFoods-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectagar-
Palavras-chave: dc.subjectbarrier properties-
Palavras-chave: dc.subjectchitosan-
Palavras-chave: dc.subjectgrease resistance-
Palavras-chave: dc.subjectpaperboard-
Título: dc.titleProperties of Paperboard Coated with Natural Polymers and Polymer Blends: Effect of the Number of Coating Layers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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