Polyols and rigid polyurethane foams derived from lignin side-streams of the pulp and paper industry

Lignin is one of the major components of the side-streams of the pulp and paper industries and of the emerging lignocellulosic biore neries. Find new strategies for lignin valorisation, apart from e vironmental issues, will contribute to close the lignocellulosic value-chain. In this context, this w...

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Detalhes bibliográficos
Autor principal: Fernandes, I.P. (author)
Outros Autores: Pinto, J.A. (author), Gomes, Elson (author), Oliveira, Cátia F. (author), Pinto, Paula C.R. (author), Mesquita, L.M.R. (author), Piloto, P.A.G. (author), Rodrigues, Alírio (author), Barreiro, M.F. (author)
Formato: conferenceObject
Idioma:eng
Publicado em: 2017
Assuntos:
Lignin valorisation
integrated process
Biopolyols
Polyurethane rigid foams
Texto completo:http://hdl.handle.net/10198/14094
País:Portugal
Oai:oai:bibliotecadigital.ipb.pt:10198/14094
Descrição
Resumo:Lignin is one of the major components of the side-streams of the pulp and paper industries and of the emerging lignocellulosic biore neries. Find new strategies for lignin valorisation, apart from e vironmental issues, will contribute to close the lignocellulosic value-chain. In this context, this work will focus on the synthesis of polyols through oxypropylation and their subsequent incorporation into rigid polyurethane (RPU) foam formulations. Two E. globulus lignin streams were tested: (i) lignin isolated from industrial kraft liquor and (ii) depolymerized lignin resulting from an oxidation process developed at the LA LSRE-LCM to produce vanillin and syringaldehyde. This work is therefore part of the LA LSRE-LCM global strategy towards the consolidation of the integrated process to valorise lignin from the kraft pulp industry, which accounts with more than 25 years of experience.

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