Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/116077
Autor(es): | Ana M. Ferreira João Pereira Margarida Almeida João Ferra Nádia Paiva Jorge Martins Fernão D. Magalhães Luísa H. Carvalho |
Título: | Biosourced Binder for Wood Particleboards Based on Spent Sulfite Liquor and Wheat Flour |
Data de publicação: | 2018 |
Resumo: | Currently, the majority of binders used in wood particleboard (PB) manufacturing are formaldehyde-based synthetic resins. Because of the toxicity of formaldehyde, there is a strong demand for eco-friendly alternatives with similar performances and economic viability. In this work, thick spent sulfite liquor (TSSL), an industrial byproduct from sulfite pulp mills, is proposed as a binder for fully bio-based PBs. The results showed that PBs bound with TSSL present appropriate mechanical performance, which was further improved when TSSL was combined with wheat flour at an 84:16 dry weight ratio and preheated to 94 degrees C prior to application. For 13.2% binder content per dry wood weight, the PB internal bond strength was 0.46 N mm(-2), which is above the standard requirements for PB type P2 (0.35 N mm(-2)). Optical microscopy showed that TSSL hinders the gelatinization of starch granules during preheating, allowing the binder mixture to maintain a low viscosity suitable for combination with wood particles and PB production. |
URI: | https://hdl.handle.net/10216/116077 |
Informação Relacionada: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE info:eu-repo/grantAgreement/Comissão de Coordenação e Desenvolvimento Regional do Norte/P2020|Norte2020-Projetos Integrados ICDT/NORTE-01-0145-FEDER-000005/LEPABE-2-ECO-INNOVATION/LEPABE-2-ECO-INNOVATION |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FEUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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291746.pdf Restricted Access | 3.63 MB | Adobe PDF | Request a copy from the Author(s) |
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