BIBLIOS

Document type
Journal articles

Document subtype
Full paper

Title
Replacement of petroleum-derived diols by sustainable biopolyols in one component polyurethane foams

Participants in the publication
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

Summary
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.


Where published
Journal of Cleaner Production

Publication Identifiers
ISSN - 0959-6526

Publisher
Elsevier BV



Document Identifiers
DOI - https://doi.org/10.1016/j.jclepro.2018.12.088
URL - http://dx.doi.org/10.1016/j.jclepro.2018.12.088

Rankings
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