Clean manufacturing of nanocellulose-reinforced hydrophobic flexible substrates

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of Toronto-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorBeijing University of Chemical Technology-
Autor(es): dc.contributorTOTAL American Services Inc.-
Autor(es): dc.creatorDias, Otavio Augusto Titton-
Autor(es): dc.creatorKonar, Samir-
Autor(es): dc.creatorLeão, Alcides Lopes [UNESP]-
Autor(es): dc.creatorYang, Weimin-
Autor(es): dc.creatorTjong, Jimi-
Autor(es): dc.creatorJaffer, Shaffiq-
Autor(es): dc.creatorCui, Teng-
Autor(es): dc.creatorFilleter, Tobin-
Autor(es): dc.creatorSain, Mohini-
Data de aceite: dc.date.accessioned2022-02-22T00:53:16Z-
Data de disponibilização: dc.date.available2022-02-22T00:53:16Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-04-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jclepro.2021.126141-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208379-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208379-
Descrição: dc.descriptionIn this study, for the first time, a flexible substrate made from nanofibrillated cellulose in slurry form was fabricated using a hydrophobic polymer base. Previous studies practiced energy-intensive dry cellulose nanofiber dispersion to produce olefin-based composites: ecological and economic viability and industrial practicability are often neglected due to lack of innovation in cleaner production processes. In this context, a low-energy process, which is economically attractive and free of harmful organic solvents, was developed to achieve homogeneous distribution of nanofibrillated cellulose (NFC) in high-density polyethylene (HDPE). The dual interfacial role of the ethylene vinyl alcohol copolymer (EVAL – 48 mol% ethylene content) enhanced interfacial adhesion through the formation of nanobridges between HDPE and NFC. This method led to well-dispersed NFC in the HDPE, at 5 wt% NFC concentration, without the need of any chemical modification, solvent exchange or freeze-drying of NFC. The low interfacial tension between HDPE and EVAL and the presence of NFC in the ternary system led to enhanced dispersion during melt-mixing. Improvement in mechanical properties was achieved, with a 22% and 98% increase in the tensile strength and Young's modulus, respectively, without significantly compromising thermal stability and barrier properties. The results shown in this study indicate a significant potential to replace synthetic and costly reinforcement additives while making nanofiber-reinforced flexible composites more sustainable and mechanically robust. In this context, a paradigm shift from fossil-based production technology to a cleaner production strategy such as those exemplified in this study will help achieve a circular production economy concept without hindering functionalities.-
Descrição: dc.descriptionNatural Sciences and Engineering Research Council of Canada-
Descrição: dc.descriptionOntario Research Foundation-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCentre for Biocomposites and Biomaterials Processing John H. Daniels Faculty of Architecture Landscape and Design University of Toronto, Toronto-
Descrição: dc.descriptionDepartment of Mechanical and Industrial Engineering University of Toronto, Toronto-
Descrição: dc.descriptionCollege of Agricultural Sciences São Paulo State University (Unesp), Botucatu-
Descrição: dc.descriptionCollege of Mechanical and Electrical Engineering Beijing University of Chemical Technology-
Descrição: dc.descriptionTOTAL American Services Inc.-
Descrição: dc.descriptionCollege of Agricultural Sciences São Paulo State University (Unesp), Botucatu-
Descrição: dc.descriptionCNPq: 202275/2015–9-
Idioma: dc.languageen-
Relação: dc.relationJournal of Cleaner Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiomaterial-
Palavras-chave: dc.subjectCellulose nanofibrils-
Palavras-chave: dc.subjectClean manufacturing-
Palavras-chave: dc.subjectComposite films ethylene vinyl alcohol-
Palavras-chave: dc.subjectNano-slurry-
Palavras-chave: dc.subjectPolyethylene-
Palavras-chave: dc.subjectSustainability-
Título: dc.titleClean manufacturing of nanocellulose-reinforced hydrophobic flexible substrates-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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