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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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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
02/07/1996 |
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Data da última atualização: |
08/04/2024 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
D'OLIVEIRA, L. O. B.; OLIVEIRA, J. J. |
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Afiliação: |
LUCIO OSORIO BASTOS D1OLIVEIRA, CPATSA; JOAO JOSE OLIVEIRA, CPATSA. |
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Título: |
Competição de dez híbridos e uma população de aspargo no Vale do Submédio São Francisco - 1o. e 2o. ano de colheita. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Petrolina: EMBRAPA-CPATSA, 1985. |
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Páginas: |
4 p. |
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Série: |
(EMBRAPA-CPATSA. Pesquisa em andamento, 36) |
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ISSN: |
0100-6118 |
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Idioma: |
Português |
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Conteúdo: |
Estudo do comportamento de dez híbridos de aspargo da França, e uma população de planta local, para identificar material agronomicamente superior, cujas caracteristicas indiquem elevado potencial produtivo e maior adaptação as condições edafoclimáticas da região. |
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Palavras-Chave: |
Asparagus; Aspargus; Brasil; Competição; Cultura alternativa; Hybrid; Nordeste; Northeast; San Francisco Sub-Middle Valley; Submédio Sao Francisco; Variety. |
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Thesagro: |
Asparagus Officinalis; Aspargo; Hibrido; Irrigação; População; Variedade. |
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Thesaurus NAL: |
Brazil; irrigation; population. |
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Categoria do assunto: |
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A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/131864/1/n-36-Competicao-de-dez-hibridos-e-uma-populacao-de-aspargo-no-Vale-do-Sub-Medio-Sao-Francisco-1-e-2-ano-de-colheita.pdf
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Marc: |
LEADER 01346nam a2200397 a 4500
001 1131864
005 2024-04-08
008 1985 bl uuuu u0uu1 u #d
022 $a0100-6118
100 1 $aD'OLIVEIRA, L. O. B.
245 $aCompetição de dez híbridos e uma população de aspargo no Vale do Submédio São Francisco - 1o. e 2o. ano de colheita.
260 $aPetrolina: EMBRAPA-CPATSA$c1985
300 $a4 p.
490 $a(EMBRAPA-CPATSA. Pesquisa em andamento, 36)
520 $aEstudo do comportamento de dez híbridos de aspargo da França, e uma população de planta local, para identificar material agronomicamente superior, cujas caracteristicas indiquem elevado potencial produtivo e maior adaptação as condições edafoclimáticas da região.
650 $aBrazil
650 $airrigation
650 $apopulation
650 $aAsparagus Officinalis
650 $aAspargo
650 $aHibrido
650 $aIrrigação
650 $aPopulação
650 $aVariedade
653 $aAsparagus
653 $aAspargus
653 $aBrasil
653 $aCompetição
653 $aCultura alternativa
653 $aHybrid
653 $aNordeste
653 $aNortheast
653 $aSan Francisco Sub-Middle Valley
653 $aSubmédio Sao Francisco
653 $aVariety
700 1 $aOLIVEIRA, J. J.
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Embrapa Semiárido (CPATSA) |
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