Tipo
Artigos em Revista
Tipo de Documento
Artigo Completo
Título
Replacement of petroleum-derived diols by sustainable biopolyols in one component polyurethane foams
Participantes na publicação
Mário Vale (Author)
INSTITUTO SUPERIOR TÉCNICO
Maria Margarida Mateus (Author)
INSTITUTO SUPERIOR TÉCNICO
Rui Galhano dos Santos (Author)
INSTITUTO SUPERIOR TÉCNICO
Carlos Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
Aster de Schrijver (Author)
João C. Bordado (Author)
INSTITUTO SUPERIOR TÉCNICO
Ana C. Marques (Author)
INSTITUTO SUPERIOR TÉCNICO
Resumo
This work reports on the development of eco-innovative and high performance one component polyurethane\\nfoams, originated from biopolyols, which were obtained from liquefaction of biomass, industry by-products, namely cork powder and eucalyptus bark. This effort consists of a cleaner production method to enable more sustainable materials and industry by-products valorisation, but also a reduction of the dependency on fossil oil derivatives. Low-value industrial cork powder and eucalyptus bark shreds were successfully liquefied into polyols, by a process based on acid-catalysed liquefaction, at atmospheric pressure, with conversion ratios up to 79%. The obtained biopolyols exhibited low acid values (1 mg KOH/g) and relatively high hydroxyl numbers (197e272 mg KOH/g) and were introduced into one component polyurethane formulations, fully replacing the petroleum-derived polyether and polyester diols in the formulation. The resultant rigid polyurethane foams exhibited a high output (16 g/s) and acceptable physical quality, assessed by optical and scanning electron microscopy. Their chemical structure, mechanical and thermal properties were evaluated through Fourier Transformed infrared spectroscopy, compression mechanical testing and thermogravimetric analysis, respectively.
Data de Publicação
2019-03
Suporte
Journal of Cleaner Production
Identificadores da Publicação
ISSN - 0959-6526
Editora
Elsevier BV
Número de Páginas
7
Página Inicial
1036
Página Final
1043
Identificadores do Documento
DOI -
https://doi.org/10.1016/j.jclepro.2018.12.088
URL -
http://dx.doi.org/10.1016/j.jclepro.2018.12.088
Identificadores de Qualidade
SCIMAGO Q1 (2018) - 1.62 - Renewable Energy, Sustainability and the Environment
Web Of Science Q1 (2018) - 6.395 - GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY - SCIE
SCOPUS Q1 (2017) - 1.467 - Renewable Energy, Sustainability and the Environment
Keywords
Lignopolyols
Biopolyols
Biomass Liquefaction
Polyurethane foam
Eco-innovative