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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
31/03/2017 |
Data da última atualização: |
24/04/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
KUMODE, M. M. N.; BOLZON DE MUNIZ, G. I.; MAGALHAES, W. L. E.; KESTUR, S. G. |
Afiliação: |
MARINA MIEKO NISHIDATE KUMODE, Pontifícia, Universidade Católica; GRACIELA I. MUNIZ BOLZON, Departamento de Engenharia e Tecnologia Florestal, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; SATYANARAYANA G. KESTUR, Poornaprajna Institute of Scientific Research (PPISR). |
Título: |
Microfibrillated nanocellulose from balsa tree as potential reinforcement in the preparation of 'green' composites with castor seed cake. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of Cleaner Production, v. 149, p. 1157-1163, Apr. 2017. |
DOI: |
http://dx.doi.org/10.1016/j.jclepro.2017.02.083 |
Idioma: |
Inglês |
Conteúdo: |
The search for and development of eco-friendly materials such as 'green' composites results from twin issues of sustainability and ?environmental impact?. Towards achieving this goal, the use of industrial residues such as plant fibers as reinforcement along with natural polymers has been yielding good results. However, due to limitations of industrial uptake of these materials in structural applications, reducing the size of fibers below the normal micro level offers advantages because of the improved behavior and functionality exhibited by the nano-sized cellulosic fibrous materials. Considering successful previous efforts to develop biodegradable composites using castor seed cake, this paper focuses on the possibility of developing ?green? composites using this material as matrix and nanocellulose prepared from balsa tree as reinforcement. The preparation of nanofibrillar cellulose through mechanical fibrillation and its characterization as well as preparation of nanocomposites by thermo-molding with a matrix plasticized by glycerin are presented. The incorporation of nanocellulose resulted in increased flexural modulus, swelling thickness, and water absorption with increasing addition of nanocellulose, while both apparent density and flexural strength remained unchanged. The observed properties are discussed based on fractographic studies. |
Palavras-Chave: |
Flexural strength; Nanocompósito; Tecnologia sustentável; Thermo-molding. |
Thesaurus Nal: |
castor bean cake; Nanocomposites; Sustainable technology. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02228naa a2200253 a 4500 001 2067968 005 2017-04-24 008 2017 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/j.jclepro.2017.02.083$2DOI 100 1 $aKUMODE, M. M. N. 245 $aMicrofibrillated nanocellulose from balsa tree as potential reinforcement in the preparation of 'green' composites with castor seed cake.$h[electronic resource] 260 $c2017 520 $aThe search for and development of eco-friendly materials such as 'green' composites results from twin issues of sustainability and ?environmental impact?. Towards achieving this goal, the use of industrial residues such as plant fibers as reinforcement along with natural polymers has been yielding good results. However, due to limitations of industrial uptake of these materials in structural applications, reducing the size of fibers below the normal micro level offers advantages because of the improved behavior and functionality exhibited by the nano-sized cellulosic fibrous materials. Considering successful previous efforts to develop biodegradable composites using castor seed cake, this paper focuses on the possibility of developing ?green? composites using this material as matrix and nanocellulose prepared from balsa tree as reinforcement. The preparation of nanofibrillar cellulose through mechanical fibrillation and its characterization as well as preparation of nanocomposites by thermo-molding with a matrix plasticized by glycerin are presented. The incorporation of nanocellulose resulted in increased flexural modulus, swelling thickness, and water absorption with increasing addition of nanocellulose, while both apparent density and flexural strength remained unchanged. The observed properties are discussed based on fractographic studies. 650 $acastor bean cake 650 $aNanocomposites 650 $aSustainable technology 653 $aFlexural strength 653 $aNanocompósito 653 $aTecnologia sustentável 653 $aThermo-molding 700 1 $aBOLZON DE MUNIZ, G. I. 700 1 $aMAGALHAES, W. L. E. 700 1 $aKESTUR, S. G. 773 $tJournal of Cleaner Production$gv. 149, p. 1157-1163, Apr. 2017.
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Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
12/01/1993 |
Data da última atualização: |
07/08/2012 |
Autoria: |
SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. |
Título: |
Resumos... |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Belém, PA: EMBRAPA-CPATU, 1984. |
Páginas: |
474 p. |
Série: |
(EMBRAPA-CPATU. Documentos, 31). |
Idioma: |
Português |
Conteúdo: |
Clima. Solo. Flora e floresta. Culturas temporárias. Culturas perenes. Pastagem e produção animal. Multidisciplinar. |
Palavras-Chave: |
Agrpecuaria; Brasil; Congress; Congresso; CPATU; Cultura perene; Cultura temporária; Regiao tropical umida; Regiao umida; Trópico; Tropico Umido; Umid Tropcis; Uso. |
Thesagro: |
Agricultura; Botânica; Clima; Floresta; Pastagem; Produção; Produção Animal; Recurso Natural; Solo; Vegetação. |
Thesaurus NAL: |
agriculture; Brazil; humid tropics; tropics. |
Categoria do assunto: |
-- X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/63170/1/CPATU-Doc31.pdf
|
Marc: |
LEADER 01208nam a2200457 a 4500 001 1393065 005 2012-08-07 008 1984 bl uuuu u01u1 u #d 100 1 $aSIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. 245 $aResumos... 260 $aBelém, PA: EMBRAPA-CPATU$c1984 300 $a474 p. 490 $a(EMBRAPA-CPATU. Documentos, 31). 520 $aClima. Solo. Flora e floresta. Culturas temporárias. Culturas perenes. Pastagem e produção animal. Multidisciplinar. 650 $aagriculture 650 $aBrazil 650 $ahumid tropics 650 $atropics 650 $aAgricultura 650 $aBotânica 650 $aClima 650 $aFloresta 650 $aPastagem 650 $aProdução 650 $aProdução Animal 650 $aRecurso Natural 650 $aSolo 650 $aVegetação 653 $aAgrpecuaria 653 $aBrasil 653 $aCongress 653 $aCongresso 653 $aCPATU 653 $aCultura perene 653 $aCultura temporária 653 $aRegiao tropical umida 653 $aRegiao umida 653 $aTrópico 653 $aTropico Umido 653 $aUmid Tropcis 653 $aUso
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