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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
12/08/2019 |
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Data da última atualização: |
12/08/2019 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
DELUCIS, R. de A.; AMICOS, S. C.; MAGALHAES, W. L. E.; PETZHOLD, C. L. |
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Afiliação: |
Rafael de Avila Delucis, Pós-graduando da UFRGS; Sandro Campos Amicos, Pós-graduando da UFRGS; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Cesar Liberato Petzhold, UFRGS. |
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Título: |
Construction: rigid bio-based polyurethane foams for sandwich panels. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: MISHRA, M. Encyclopedia of polymer applications. Boca Raton: CRC Press, 2018. v. 1, p. 624-638. |
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DOI: |
10.1201/9781351019422-140000307 |
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Idioma: |
Inglês |
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Conteúdo: |
Polyurethane (PU) foams are dominant materials in several markets due to their characteristics such as low cost, wide range of densities, low fragility, easy adhesion to coatings, thermal and acoustic insulation, and high versatility. Due to environmental concerns, bio-based polyester polyols have been used to partly replace traditional hydroxylated polyether polyols from petroleum. Biobased PU properties may be modified by chemically treating the polyol, or with the aid of chemical additives or synthetic and vegetable-based fillers, e.g., wood flour and its derivatives, which affect their rheological, morphological, thermal, and mechanical characteristics, even though this effect still lacks comprehensive studies, especially about filled foams. This review also encompasses the use of neat and filled PU foams as cores in structural insulation panels, including aspects such as processing, properties, advantages, and challenges. Indeed, although metallic profiles and composite plates are most used as face sheets of sandwich panels due to their high performance, solid wood and wood-based panels can be interesting alternatives to widen the range of applications of bio-based PU cores, retaining their sustainable character. Other applications are also discussed in this entry. |
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Palavras-Chave: |
Bio-based foams; Compósito; Espuma de base biológica; Espuma de poliuretano; Insulation material; Lightweight panels; Material isolante; Polyether polyols; Sandwich structures; Wood-based composites. |
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Thesagro: |
Madeira. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02237naa a2200301 a 4500
001 2111241
005 2019-08-12
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1201/9781351019422-140000307$2DOI
100 1 $aDELUCIS, R. de A.
245 $aConstruction$brigid bio-based polyurethane foams for sandwich panels.$h[electronic resource]
260 $c2018
520 $aPolyurethane (PU) foams are dominant materials in several markets due to their characteristics such as low cost, wide range of densities, low fragility, easy adhesion to coatings, thermal and acoustic insulation, and high versatility. Due to environmental concerns, bio-based polyester polyols have been used to partly replace traditional hydroxylated polyether polyols from petroleum. Biobased PU properties may be modified by chemically treating the polyol, or with the aid of chemical additives or synthetic and vegetable-based fillers, e.g., wood flour and its derivatives, which affect their rheological, morphological, thermal, and mechanical characteristics, even though this effect still lacks comprehensive studies, especially about filled foams. This review also encompasses the use of neat and filled PU foams as cores in structural insulation panels, including aspects such as processing, properties, advantages, and challenges. Indeed, although metallic profiles and composite plates are most used as face sheets of sandwich panels due to their high performance, solid wood and wood-based panels can be interesting alternatives to widen the range of applications of bio-based PU cores, retaining their sustainable character. Other applications are also discussed in this entry.
650 $aMadeira
653 $aBio-based foams
653 $aCompósito
653 $aEspuma de base biológica
653 $aEspuma de poliuretano
653 $aInsulation material
653 $aLightweight panels
653 $aMaterial isolante
653 $aPolyether polyols
653 $aSandwich structures
653 $aWood-based composites
700 1 $aAMICOS, S. C.
700 1 $aMAGALHAES, W. L. E.
700 1 $aPETZHOLD, C. L.
773 $tIn: MISHRA, M. Encyclopedia of polymer applications. Boca Raton: CRC Press, 2018.$gv. 1, p. 624-638.
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| 1. |  | BIANCHI, V. J.; ARGE, L. W. P.; BENEMANN, D. de P.; ARGENTA, J. C.; ESCOSTEGUY, I. L.; MAYER, N. A. Variabilidade genético-molecular de acessos de porta-enxertos de pessegueiros coletados nos municípios de pelotas e Morro Redondo-RS. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012.| Tipo: Artigo em Anais de Congresso |
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| 2. | | CORRÊA, N. S.; ARGENTA, J. C.; RODRIGUES, T. L.; SILVA, G. M. da; LARRÉ, C. F.; MARINI, P.; MORAES, D. M. de. Viabilidad y vigor de semillas de Lotus corniculatus L. bajo el efecto de Diclosulam. In: CONGRESO LATINOAMERICANO DE FISIOLOGÍA VEGETAL, 15.; REUNIÓN ARGENTINA DE FISIOLOGÍA VEGETAL, 30., 2014, Mar del Plata. Fisiología Vegetal: aportes a los desafíos energéticos, productivos y socio-ambientales de la próxima década. [La Plata]: SAFV, 2014. p. 218.| Tipo: Resumo em Anais de Congresso |
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