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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
18/03/2022 |
Data da última atualização: |
24/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
Título: |
Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 29, 2022. |
Páginas: |
8665-8683 |
DOI: |
https://doi.org/10.1007/s11356-021-16203-4 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Agro-industrial wastes; Bio-based material; Cellulose nanofibrils; Microfibrillated cellulose (MFC). |
Categoria do assunto: |
-- |
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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Embrapa Instrumentação (CNPDIA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
10/06/1997 |
Data da última atualização: |
26/04/2022 |
Autoria: |
OLIVEIRA JUNIOR, B. C. de; REYES, A. de LOS; MAGNABOSCO, C. de U.; CORDEIRO, C. T.; LOBO, R. B. |
Afiliação: |
EMBRAPA-CENARGEN. |
Título: |
Analise da composicao familiar em um rebanho da raca Nelore. |
Ano de publicação: |
1994 |
Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 31., 1994, Maringa, PR, Anais. Maringa: Sociedade Brasileira de Zootecnia, 1994. p.145. |
Páginas: |
p.145 |
Idioma: |
Português |
Palavras-Chave: |
Bovine; Breed; Genetic; Raca nelore. |
Thesagro: |
Bovino; Genética. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00728nam a2200229 a 4500 001 1171029 005 2022-04-26 008 1994 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA JUNIOR, B. C. de 245 $aAnalise da composicao familiar em um rebanho da raca Nelore.$h[electronic resource] 260 $aIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 31., 1994, Maringa, PR, Anais. Maringa: Sociedade Brasileira de Zootecnia, 1994. p.145.$c1994 300 $ap.145 650 $aBovino 650 $aGenética 653 $aBovine 653 $aBreed 653 $aGenetic 653 $aRaca nelore 700 1 $aREYES, A. de LOS 700 1 $aMAGNABOSCO, C. de U. 700 1 $aCORDEIRO, C. T. 700 1 $aLOBO, R. B.
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