Journal
JOURNAL OF POLYMERS AND THE ENVIRONMENT
Volume 26, Issue 6, Pages 2546-2554Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10924-017-1145-8
Keywords
Bio-based polyols; Crude glycerol; Rigid polyurethane foams; Photo-oxidative and thermo-oxidative aging
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In this work rigid polyurethane foams (PUR) were obtained by replacement of 0-70 wt% of petrochemical polyol with bio-polyol obtained via cellulose liquefaction in presence of crude glycerol. The foams with different content of a bio-polyol were prepared by single step method for NCO/OH ratio equals 1.5. The prepared materials were analyzed in terms of their morphology, chemical structure, thermal stability and basic physical and mechanical properties. The effects of photo-oxidative and thermo-oxidative aging on chemical structure, apparent density and mechanical properties of the biomass based rigid polyurethane foams were investigated and discussed.
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