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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: |
30/04/2024 |
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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 CEARÁ; ADRIANO LINCOLN ALBUQUERQUE MATTOS, CNPAT; GISELE SILVESTRE DA SILVA; KIRLEY MARQUES CANUTO, CNPAT; RENATO CARRHA LEITAO, CNPAT; JOSE 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 and Products, 212, 118379, 2024. |
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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. |
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Thesaurus Nal: |
Biodegradability; Mechanical properties; Wastes. |
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Categoria do assunto: |
--
W Química e Física |
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Marc: |
LEADER 02615naa a2200337 a 4500
001 2164004
005 2024-04-30
008 2024 bl uuuu u00u1 u #d
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 $aBiodegradability
650 $aMechanical properties
650 $aWastes
650 $aDesperdício
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 and Products, 212, 118379, 2024.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
01/12/2022 |
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Data da última atualização: |
01/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PIRES, M. de F. M.; SOUZA, H. A. de; MEDERIOS, J. C.; ROSA, J. D.; MARTINS, R. V. de S.; SOBRAL, A. H. S.; CARVALHO, S. P.; VERA, G. de S.; VIEIRA, P. F. de M. J.; SAGRILO, E. |
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Afiliação: |
MARIA DE FÁTIMA MARQUES PIRES, FEDERAL UNIVERSITY OF PIAUÍ; HENRIQUE ANTUNES DE SOUZA, CPAMN; JOÃO CARLOS MEDERIOS, FEDERAL UNIVERSITY OF SOUTHERN BAHIA; JAQUELINE DALLA ROSA, FEDERAL UNIVERSITY OF SOUTHERN BAHIA; RAPHAEL VINICIUS DE SOUZA MARTINS, FEDERAL UNIVERSITY OF PIAUÍ; AMANDA HÉLLEN SALES SOBRAL, FEDERAL UNIVERSITY OF PIAUÍ; SUZANE PEREIRA CARVALHO, FEDERAL INSTITUTE OF EDUCATION, SCIENCE AND TECHNOLOGY OF PIAUÍ; GEANIA DE SOUSA VERA, FEDERAL UNIVERSITY OF PIAUÍ; PAULO FERNANDO DE MELO JORGE VIEIRA, CPAMN; EDVALDO SAGRILO, CPAMN. |
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Título: |
Nutrient uptake by soybean plants in succession of cover crops in Northeast of Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, 2022. Online. |
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DOI: |
https://doi.org/10.1080/00103624.2022.2137183 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to estimate the nutrient absorption rate in soybean plants cultivated in succession to cover crops and under soil management systems. |
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Palavras-Chave: |
Redistribuição; Sistema de manejo do solo. |
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Thesagro: |
Glycine Max; Nutriente; Plantio Direto. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01071naa a2200301 a 4500
001 2149092
005 2022-12-01
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00103624.2022.2137183$2DOI
100 1 $aPIRES, M. de F. M.
245 $aNutrient uptake by soybean plants in succession of cover crops in Northeast of Brazil.$h[electronic resource]
260 $c2022
520 $aThis study aimed to estimate the nutrient absorption rate in soybean plants cultivated in succession to cover crops and under soil management systems.
650 $aGlycine Max
650 $aNutriente
650 $aPlantio Direto
653 $aRedistribuição
653 $aSistema de manejo do solo
700 1 $aSOUZA, H. A. de
700 1 $aMEDERIOS, J. C.
700 1 $aROSA, J. D.
700 1 $aMARTINS, R. V. de S.
700 1 $aSOBRAL, A. H. S.
700 1 $aCARVALHO, S. P.
700 1 $aVERA, G. de S.
700 1 $aVIEIRA, P. F. de M. J.
700 1 $aSAGRILO, E.
773 $tCommunications in Soil Science and Plant Analysis, 2022. Online.
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