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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
28/01/2002 |
Data da última atualização: |
28/01/2002 |
Autoria: |
FONSECA, T. C.; SILVA; R. M. B. da; MORETTI, A. C. de C. C.; BONILHA, N. A.; da S.; BERGMAN, E. C.; BRISOLA, A. D.; SILVA, E. C. A. da; MORAES, R. M. de. |
Título: |
Insetos uteis; programa integrado de pesquisa. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
Sao Paulo: CPA, 1985. |
Páginas: |
25 p. |
Idioma: |
Português |
Palavras-Chave: |
Insetos; Sao Paulo. |
Thesagro: |
Programa de Pesquisa. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00635nam a2200253 a 4500 001 1063541 005 2002-01-28 008 1985 bl uuuu u0uu1 u #d 100 1 $aFONSECA, T. C. 245 $aInsetos uteis; programa integrado de pesquisa. 260 $aSao Paulo: CPA$c1985 300 $a25 p. 650 $aPrograma de Pesquisa 653 $aInsetos 653 $aSao Paulo 700 1 $aSILVA 700 1 $aR. M. B. da 700 1 $aMORETTI, A. C. de C. C. 700 1 $aBONILHA, N. A. 700 1 $ada S. 700 1 $aBERGMAN, E. C. 700 1 $aBRISOLA, A. D. 700 1 $aSILVA, E. C. A. da 700 1 $aMORAES, R. M. de
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
17/12/2018 |
Data da última atualização: |
22/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MISSIO, A. L.; MATTOS, B. D.; CADEMARTORI, P. H. G. de; MAGALHAES, W. L. E.; BERGER, C.; HASELEIN, C. R.; GATTO, D. A.; PETUTSCHNIGG, A.; TONDI, G. |
Afiliação: |
Andre L. Missio, UFSM; Bruno D. Mattos, Doutorando da UFPR; Pedro H. G. de Cademartori, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Camila Berger, UFSM; Clovis R. Haselein, UFSM; Darci A. Gatto, UFSM; Alexander Petutschnigg, Salzburg University of Applied Sciences; Gianluca Tondi, Salzburg University of Applied Sciences. |
Título: |
Impact of tannin as sustainable compatibilizer for wood-polypropylene composites. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Polymer Composites, v. 39, n. 2, p. 4275-4284, Dec. 2018. |
DOI: |
10.1002/pc.24498 |
Idioma: |
Inglês |
Conteúdo: |
Wood Plastic Composites (WPCs) are well-known products which combine the high mechanical properties of wood with the high hydrophobicity and formability of polypropylene (PP). They are largely used for decking, cladding and flooring for outdoor constructions but they still present some drawbacks due to the limited chemical affinity of the two materials. In this paper, the addition of mimosa (Acacia mearnsii) tannin as compatibilizer was tested and these composites were characterized via SEM, TGA, DSC, DMA, mechanical testing, water absorption and contact angle. The tannin-containing WPC presented lower interspaces between PP and lignocellulosic matrix, higher hydrophobicity and comparable mechanical performances. These results were due to the high compatibilization effect of the tannin, which allow getting similar results with 15% less lignocellulosic material. The lower crystallinity observed for PP in tannin-containing composites allowed a better contact between the wooden fractions. Although good physical compatibilization was obtained no evidences of chemical bonding were observed by FT-IR. The enhanced interphase contact and the higher hydrophobicity registered for the tannin-containing WPCs suggest that this natural, easily available extract can be a cheap and green additive to enhance the service-life for outdoor applications. |
Palavras-Chave: |
Chemical bonds; Compatibilizers; Compósito; Formability; Green additives; High mechanical properties; Lignocellulosic material; Material lignocelulósico; Mechanical testing; Plastic products; Water absorption; Wood-plastic composites. |
Thesagro: |
Propriedade Mecânica; Tanino. |
Thesaurus NAL: |
Flavonoids; Hydrophobicity; Polypropylenes; Tannins; Wood products. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02653naa a2200457 a 4500 001 2101740 005 2019-01-22 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1002/pc.24498$2DOI 100 1 $aMISSIO, A. L. 245 $aImpact of tannin as sustainable compatibilizer for wood-polypropylene composites.$h[electronic resource] 260 $c2018 520 $aWood Plastic Composites (WPCs) are well-known products which combine the high mechanical properties of wood with the high hydrophobicity and formability of polypropylene (PP). They are largely used for decking, cladding and flooring for outdoor constructions but they still present some drawbacks due to the limited chemical affinity of the two materials. In this paper, the addition of mimosa (Acacia mearnsii) tannin as compatibilizer was tested and these composites were characterized via SEM, TGA, DSC, DMA, mechanical testing, water absorption and contact angle. The tannin-containing WPC presented lower interspaces between PP and lignocellulosic matrix, higher hydrophobicity and comparable mechanical performances. These results were due to the high compatibilization effect of the tannin, which allow getting similar results with 15% less lignocellulosic material. The lower crystallinity observed for PP in tannin-containing composites allowed a better contact between the wooden fractions. Although good physical compatibilization was obtained no evidences of chemical bonding were observed by FT-IR. The enhanced interphase contact and the higher hydrophobicity registered for the tannin-containing WPCs suggest that this natural, easily available extract can be a cheap and green additive to enhance the service-life for outdoor applications. 650 $aFlavonoids 650 $aHydrophobicity 650 $aPolypropylenes 650 $aTannins 650 $aWood products 650 $aPropriedade Mecânica 650 $aTanino 653 $aChemical bonds 653 $aCompatibilizers 653 $aCompósito 653 $aFormability 653 $aGreen additives 653 $aHigh mechanical properties 653 $aLignocellulosic material 653 $aMaterial lignocelulósico 653 $aMechanical testing 653 $aPlastic products 653 $aWater absorption 653 $aWood-plastic composites 700 1 $aMATTOS, B. D. 700 1 $aCADEMARTORI, P. H. G. de 700 1 $aMAGALHAES, W. L. E. 700 1 $aBERGER, C. 700 1 $aHASELEIN, C. R. 700 1 $aGATTO, D. A. 700 1 $aPETUTSCHNIGG, A. 700 1 $aTONDI, G. 773 $tPolymer Composites$gv. 39, n. 2, p. 4275-4284, Dec. 2018.
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