Publication Type Journal Article
Title Replacement of petroleum-derived diols by sustainable biopolyols in one component polyurethane foams
Authors Mario Vale Maria Margarida Mateus Rui Galhano dos Santos CA Nieto de Castro Aster De Schrijver Joao C. Bordado Ana C. Marques
Groups MTFT
Journal JOURNAL OF CLEANER PRODUCTION
Year 2019
Month March
Volume 212
Number
Pages 1036-1043
Abstract This work reports on the development of eco-innovative and high performance one component polyurethane foams, 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 (197-272 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. (C) 2018 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.jclepro.2018.12.088
ISBN
Publisher
Book Title
ISSN 0959-6526
EISSN 1879-1786
Conference Name
Bibtex ID ISI:000457952500087
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