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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | University of Toronto | - |
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Beijing University of Chemical Technology | - |
Autor(es): dc.contributor | TOTAL American Services Inc. | - |
Autor(es): dc.creator | Dias, Otavio Augusto Titton | - |
Autor(es): dc.creator | Konar, Samir | - |
Autor(es): dc.creator | Leão, Alcides Lopes [UNESP] | - |
Autor(es): dc.creator | Yang, Weimin | - |
Autor(es): dc.creator | Tjong, Jimi | - |
Autor(es): dc.creator | Jaffer, Shaffiq | - |
Autor(es): dc.creator | Cui, Teng | - |
Autor(es): dc.creator | Filleter, Tobin | - |
Autor(es): dc.creator | Sain, Mohini | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:53:16Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:53:16Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-04-15 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.jclepro.2021.126141 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/208379 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/208379 | - |
Descrição: dc.description | In 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.description | Natural Sciences and Engineering Research Council of Canada | - |
Descrição: dc.description | Ontario Research Foundation | - |
Descrição: dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
Descrição: dc.description | Centre for Biocomposites and Biomaterials Processing John H. Daniels Faculty of Architecture Landscape and Design University of Toronto, Toronto | - |
Descrição: dc.description | Department of Mechanical and Industrial Engineering University of Toronto, Toronto | - |
Descrição: dc.description | College of Agricultural Sciences São Paulo State University (Unesp), Botucatu | - |
Descrição: dc.description | College of Mechanical and Electrical Engineering Beijing University of Chemical Technology | - |
Descrição: dc.description | TOTAL American Services Inc. | - |
Descrição: dc.description | College of Agricultural Sciences São Paulo State University (Unesp), Botucatu | - |
Descrição: dc.description | CNPq: 202275/2015–9 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Journal of Cleaner Production | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Biomaterial | - |
Palavras-chave: dc.subject | Cellulose nanofibrils | - |
Palavras-chave: dc.subject | Clean manufacturing | - |
Palavras-chave: dc.subject | Composite films ethylene vinyl alcohol | - |
Palavras-chave: dc.subject | Nano-slurry | - |
Palavras-chave: dc.subject | Polyethylene | - |
Palavras-chave: dc.subject | Sustainability | - |
Título: dc.title | Clean manufacturing of nanocellulose-reinforced hydrophobic flexible substrates | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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