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| 1. |  | IEDE, E. T.; PENTEADO, S. R. C. do; REIS FILHO, W. Uso do entomopatógeno, Deladenus siricidicola, em pinus. In: CONGRESSO BRASILEIRO DE NEMATOLOGIA, 24.; MEETING OF THE BRAZILIAN SOCIETY OF NEMATOLOGY, 2003, Petrolina. [Anais.]. Petrolina: Sociedade Brasileira de Nematologia: Embrapa Semi-Árido, 2003. p. 47-49. Editores: Moreira, W. A.; Kiill, L. H. P.| Biblioteca(s): Embrapa Florestas. |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
18/03/2022 |
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Data da última atualização: |
24/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
GUIMARÃES, B. M. R.; SCATOLINO, M. V.; MARTINS, M. A.; FERREIRA, S. R.; MENDES, L. M.; LIMA, J. T.; GUIMARÃES JUNIOR, M.; TONOLI, G. H. D. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 29, 2022. |
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Páginas: |
8665-8683 |
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DOI: |
https://doi.org/10.1007/s11356-021-16203-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability, and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability, besides low cost, could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes. |
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Palavras-Chave: |
Agro-industrial wastes; Bio-based material; Cellulose nanofibrils; Microfibrillated cellulose (MFC). |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02393naa a2200277 a 4500
001 2141029
005 2022-06-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-021-16203-4$2DOI
100 1 $aGUIMARÃES, B. M. R.
245 $aBio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials.$h[electronic resource]
260 $c2022
300 $a8665-8683
520 $aThe growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability, and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability, besides low cost, could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes.
653 $aAgro-industrial wastes
653 $aBio-based material
653 $aCellulose nanofibrils
653 $aMicrofibrillated cellulose (MFC)
700 1 $aSCATOLINO, M. V.
700 1 $aMARTINS, M. A.
700 1 $aFERREIRA, S. R.
700 1 $aMENDES, L. M.
700 1 $aLIMA, J. T.
700 1 $aGUIMARÃES JUNIOR, M.
700 1 $aTONOLI, G. H. D.
773 $tEnvironmental Science and Pollution Research$gv. 29, 2022.
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