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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Alimentos e Territórios. |
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Data corrente: |
30/04/2024 |
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Data da última atualização: |
14/10/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PAIVA, E. M. DE; MATTOS, A. L. A.; SILVA, G. S. DA; CANUTO, K. M.; LEITAO, R. C.; ALVES, J. L. F.; BRITO, E. S. de. |
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Afiliação: |
EVANICE MEDEIROS DE PAIVA, FEDERAL UNIVERSITY OF CEARA; ADRIANO LINCOLN ALBUQUERQUE MATTOS, CNPAT; GISELE SILVESTRE DA SILVA, CNPQ; KIRLEY MARQUES CANUTO, CNPAT; RENATO CARRHA LEITAO, CNPAT; JOSÉ LUIZ FRANCISCO ALVES, FEDERAL UNIVERSITY OF PARAÍBA; EDY SOUSA DE BRITO, CNAT. |
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Título: |
Valorizing cashew nutshell residue for sustainable lignocellulosic panels using a bio-based phenolic resin as a circular economy solution. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Industrial Crops & Products, 212, 118379, 2024 . |
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DOI: |
https://doi.org/10.1016/j.indcrop.2024.118379 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
he motivation for this study stems from the significant annual amount of cashew nutshells produced worldwide, which has raised growing concerns about proper environmental disposal. One alternative is to utilize the nutshells to produce particleboards and eco-friendly resin, thereby contributing to the circular economy. The present study proposes an innovation by providing the first insights into particleboard production, utilizing pressed cashew nutshell and a phenolic resin derived from the reaction of cashew nutshell liquid (CNSL) with formaldehyde. The mass proportions of CNSL to formaldehyde were varied at 1:0.25, 1:0.5, and 1:0.75 (w/w) without the necessity for isolating chemical compounds at 105 °C. The resin was characterized using rheology, DSC, FTIR, HPLC, and NMR techniques. The mechanical properties of the particleboard were evaluated through density, tensile, flexural, water absorption, and thickness swelling tests. The formaldehyde emission and biodegradability content of the particleboards were also evaluated. Eco-friendly phenol-formaldehyde resin promoted the modulus of elasticity (MOE) from 707 to 1866 MPa and the modulus of rupture (MOR) from 6.4 to 14.3 MPa. In addition, using adhesive with CNSL to formaldehyde mass ratios of 1:0.25 and 1:0.50 resulted in particleboards of class E1 in terms of formaldehyde emissions. The biodegradability of panels PB25, PB50 and PB75 was 30%, 21% and 20%, respectively, in 30 days. These findings demonstrate the potential of cashew nutshell biomass and eco-friendly resin as an adhesive in the particleboard industry. Menoshe motivation for this study stems from the significant annual amount of cashew nutshells produced worldwide, which has raised growing concerns about proper environmental disposal. One alternative is to utilize the nutshells to produce particleboards and eco-friendly resin, thereby contributing to the circular economy. The present study proposes an innovation by providing the first insights into particleboard production, utilizing pressed cashew nutshell and a phenolic resin derived from the reaction of cashew nutshell liquid (CNSL) with formaldehyde. The mass proportions of CNSL to formaldehyde were varied at 1:0.25, 1:0.5, and 1:0.75 (w/w) without the necessity for isolating chemical compounds at 105 °C. The resin was characterized using rheology, DSC, FTIR, HPLC, and NMR techniques. The mechanical properties of the particleboard were evaluated through density, tensile, flexural, water absorption, and thickness swelling tests. The formaldehyde emission and biodegradability content of the particleboards were also evaluated. Eco-friendly phenol-formaldehyde resin promoted the modulus of elasticity (MOE) from 707 to 1866 MPa and the modulus of rupture (MOR) from 6.4 to 14.3 MPa. In addition, using adhesive with CNSL to formaldehyde mass ratios of 1:0.25 and 1:0.50 resulted in particleboards of class E1 in terms of formaldehyde emissions. The biodegradability of panels PB25, PB50 and PB75 was 30%, 21% and 20%, respectively, in 30 days. These findings demonstrate the potential ... Mostrar Tudo |
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Palavras-Chave: |
Adesivo ecológico; Biodegradabilidade; CNSL; Eco-friendly adhesive; Emissão de formaldeído; Formaldehyde emission; LNC; Propriedades mecânicas. |
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Thesagro: |
Desperdício; Propriedade Mecânica. |
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Thesaurus Nal: |
Agricultural wastes; Biodegradability; Mechanical properties; Wastes. |
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Categoria do assunto: |
--
W Química e Física |
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Marc: |
LEADER 02755naa a2200373 a 4500
001 2167925
005 2024-10-14
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.indcrop.2024.118379$2DOI
100 1 $aPAIVA, E. M. DE
245 $aValorizing cashew nutshell residue for sustainable lignocellulosic panels using a bio-based phenolic resin as a circular economy solution.$h[electronic resource]
260 $c2024
520 $ahe motivation for this study stems from the significant annual amount of cashew nutshells produced worldwide, which has raised growing concerns about proper environmental disposal. One alternative is to utilize the nutshells to produce particleboards and eco-friendly resin, thereby contributing to the circular economy. The present study proposes an innovation by providing the first insights into particleboard production, utilizing pressed cashew nutshell and a phenolic resin derived from the reaction of cashew nutshell liquid (CNSL) with formaldehyde. The mass proportions of CNSL to formaldehyde were varied at 1:0.25, 1:0.5, and 1:0.75 (w/w) without the necessity for isolating chemical compounds at 105 °C. The resin was characterized using rheology, DSC, FTIR, HPLC, and NMR techniques. The mechanical properties of the particleboard were evaluated through density, tensile, flexural, water absorption, and thickness swelling tests. The formaldehyde emission and biodegradability content of the particleboards were also evaluated. Eco-friendly phenol-formaldehyde resin promoted the modulus of elasticity (MOE) from 707 to 1866 MPa and the modulus of rupture (MOR) from 6.4 to 14.3 MPa. In addition, using adhesive with CNSL to formaldehyde mass ratios of 1:0.25 and 1:0.50 resulted in particleboards of class E1 in terms of formaldehyde emissions. The biodegradability of panels PB25, PB50 and PB75 was 30%, 21% and 20%, respectively, in 30 days. These findings demonstrate the potential of cashew nutshell biomass and eco-friendly resin as an adhesive in the particleboard industry.
650 $aAgricultural wastes
650 $aBiodegradability
650 $aMechanical properties
650 $aWastes
650 $aDesperdício
650 $aPropriedade Mecânica
653 $aAdesivo ecológico
653 $aBiodegradabilidade
653 $aCNSL
653 $aEco-friendly adhesive
653 $aEmissão de formaldeído
653 $aFormaldehyde emission
653 $aLNC
653 $aPropriedades mecânicas
700 1 $aMATTOS, A. L. A.
700 1 $aSILVA, G. S. DA
700 1 $aCANUTO, K. M.
700 1 $aLEITAO, R. C.
700 1 $aALVES, J. L. F.
700 1 $aBRITO, E. S. de
773 $tIndustrial Crops & Products, 212, 118379, 2024 .
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Embrapa Agroindústria Tropical (CNPAT) |
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| 6. |  | SUÑÉ, R. W. Onde criar as terneiras? Bagé: Embrapa Pecuária Sul, 2002. 3 p. (Embrapa Pecuária Sul. Comunicado técnico, 52).| Tipo: Comunicado Técnico/Recomendações Técnicas |
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