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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
24/06/2024 |
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Data da última atualização: |
31/07/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCATOLINO, M. V.; MELO, R. R. de; PAULA, E. A. O.; MARTINS, M. A.; TONOLI, G. H. D.; ESPOSITO, A.; MENDES, L. M. |
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Afiliação: |
FEDERAL UNIVERSITY OF THE SEMI-ARID REGION- UFERSA; FEDERAL UNIVERSITY OF THE SEMI-ARID REGION- UFERSA; FEDERAL UNIVERSITY OF THE SEMI-ARID REGION- UFERSA; MARIA ALICE MARTINS, CNPDIA; FEDERAL UNIVERSITY OF LAVRAS - UFLA; UNIV ROUEN NORMANDIE, INSA ROUEN NORMANDIE; FEDERAL UNIVERSITY OF LAVRAS - UFLA. |
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Título: |
Mechanical and surface properties of standard writing and printing papers coated with alternating layers of Amazonian Paricá nanofibrils and cassava starch. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Materials Science, 2024 |
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Páginas: |
1 - 19 |
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DOI: |
htps://doi.org/10.1007/s10853-024-09827-7 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT Using nanostructured materials issued from renewable resources could be the key to the development of good-quality low-cost products that help reduce pollution. Cellulose nanofbrils (CNFs) were obtained by alkaline and bleaching treatments of Amazonian Paricá hardwood sawdust, a waste material from the Brazilian forestry industry. This study evaluated a process consisting in alternating layers of Paricá CNFs and cassava starch to coat standard writing and printing (W&P) papers with a skim-coating method, in which one face of each paper sample is passed over the surface of a suspension containing either CNFs or cassava starch, alternatively. The coated samples were then compared to the uncoated paper in terms of mechanical and surface properties. The mechanical properties of the papers coated with alkaline CNFs showed a declining trend as the number of coating layers increased (from 47 to 31 MPa). The papers coated with starch layers showed improved mechanical performance compared to the samples only coated with alkaline and alkaline bleached CNFs. All the coated samples showed excellent resistance to water degradation. The worst degradation (4%) was observed for the samples coated with a single layer of alkaline CNFs. A signifcant improvement in surface wetability was observed when gelatinized cassava starch was applied to the paper samples, irrespective of the type of CNFs eventually present on the surface. All in all, these results suggest that using gelatinized cassava starch as an alternating layer between successive CNFs layers on the surface of W&P paper samples may be promising for improving their overall properties. MenosABSTRACT Using nanostructured materials issued from renewable resources could be the key to the development of good-quality low-cost products that help reduce pollution. Cellulose nanofbrils (CNFs) were obtained by alkaline and bleaching treatments of Amazonian Paricá hardwood sawdust, a waste material from the Brazilian forestry industry. This study evaluated a process consisting in alternating layers of Paricá CNFs and cassava starch to coat standard writing and printing (W&P) papers with a skim-coating method, in which one face of each paper sample is passed over the surface of a suspension containing either CNFs or cassava starch, alternatively. The coated samples were then compared to the uncoated paper in terms of mechanical and surface properties. The mechanical properties of the papers coated with alkaline CNFs showed a declining trend as the number of coating layers increased (from 47 to 31 MPa). The papers coated with starch layers showed improved mechanical performance compared to the samples only coated with alkaline and alkaline bleached CNFs. All the coated samples showed excellent resistance to water degradation. The worst degradation (4%) was observed for the samples coated with a single layer of alkaline CNFs. A signifcant improvement in surface wetability was observed when gelatinized cassava starch was applied to the paper samples, irrespective of the type of CNFs eventually present on the surface. All in all, these results suggest that using gelatinized c... Mostrar Tudo |
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Palavras-Chave: |
Good-quality low-cost products; Reduce pollution. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02455naa a2200241 a 4500
001 2165057
005 2024-07-31
008 2024 bl uuuu u00u1 u #d
024 7 $ahtps://doi.org/10.1007/s10853-024-09827-7$2DOI
100 1 $aSCATOLINO, M. V.
245 $aMechanical and surface properties of standard writing and printing papers coated with alternating layers of Amazonian Paricá nanofibrils and cassava starch.$h[electronic resource]
260 $c2024
300 $a1 - 19
520 $aABSTRACT Using nanostructured materials issued from renewable resources could be the key to the development of good-quality low-cost products that help reduce pollution. Cellulose nanofbrils (CNFs) were obtained by alkaline and bleaching treatments of Amazonian Paricá hardwood sawdust, a waste material from the Brazilian forestry industry. This study evaluated a process consisting in alternating layers of Paricá CNFs and cassava starch to coat standard writing and printing (W&P) papers with a skim-coating method, in which one face of each paper sample is passed over the surface of a suspension containing either CNFs or cassava starch, alternatively. The coated samples were then compared to the uncoated paper in terms of mechanical and surface properties. The mechanical properties of the papers coated with alkaline CNFs showed a declining trend as the number of coating layers increased (from 47 to 31 MPa). The papers coated with starch layers showed improved mechanical performance compared to the samples only coated with alkaline and alkaline bleached CNFs. All the coated samples showed excellent resistance to water degradation. The worst degradation (4%) was observed for the samples coated with a single layer of alkaline CNFs. A signifcant improvement in surface wetability was observed when gelatinized cassava starch was applied to the paper samples, irrespective of the type of CNFs eventually present on the surface. All in all, these results suggest that using gelatinized cassava starch as an alternating layer between successive CNFs layers on the surface of W&P paper samples may be promising for improving their overall properties.
653 $aGood-quality low-cost products
653 $aReduce pollution
700 1 $aMELO, R. R. de
700 1 $aPAULA, E. A. O.
700 1 $aMARTINS, M. A.
700 1 $aTONOLI, G. H. D.
700 1 $aESPOSITO, A.
700 1 $aMENDES, L. M.
773 $tJournal of Materials Science, 2024
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Embrapa Instrumentação (CNPDIA) |
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| 1. |  | SIQUEIRA, L. G. B.; REIS, L. G.; NEVES, A. L. A.; SANTOS, R. D. dos; TABOSA, J. N.; MACHADO, F. S.; MOREIRA, E. DE A.; RODRIGUES, J. A. S. Produtividade e características agronômicas de cinco variedades de milho para silagem. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Tipo: Artigo em Anais de Congresso |
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