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| 12. |  | BERGER, R.; SCHNEIDER, P. R.; FINGER, C. A. G.; HASELEIN, C. R. Efeito do espacamento e da fertilizacao sobre o crescimento e qualidade da madeira de um clone de Eucalyptus saligna Smith. In: SIMPOSIO LATINO-AMERICANO SOBRE MANEJO FLORESTAL, 1., 2000, Santa Maria. Anais. Santa Maria: Universidade Federal de Santa Maria, Centro de Ciencias Rurais, Programa de Pos-Graduacao em Engenharia Florestal, 2000. p.209-236.| Biblioteca(s): Embrapa Florestas. |
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| 13. | | TREVISAN, R.; HASELEIN, C. R.; SANTINI, E. J.; SCHNEIDER, P. R.; MENEZES, L. F. de. Efeito da intensidade de desbaste nas características dendrométricas e tecnológicas da madeira de Eucalyptus grandis. Ciência Florestal, Santa Maria, v. 17, n. 3/4, p. 377-387, jul./dez. 2007.| Biblioteca(s): Embrapa Florestas. |
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| 16. | | CALEGARI, L.; HASELEIN, C. R.; HACK, C.; GATTO, D. A.; BARROS, M. V.; SANTINI, E. J. Monitoramento da temperatura no interior de chapas aglomeradas durante o processo de prensagem. Ciência Florestal, Santa Maria, v. 15, n. 1/2, p. 157-166, mar. 2005.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 69 | |
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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 |
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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. |
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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. |
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Thesagro: |
Propriedade Mecânica; Tanino. |
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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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