Open-cell rigid polyurethane bio-foams based on modified used cooking oil
Maria Kurańska , Krzysztof Polaczek , Monika Auguścik , Aleksander Prociak , Joanna Ryszkowska
In the present work, we report on rigid polyurethane foams based on modified used cooking oil. The bio-polyols with different hydroxyl values and viscosities as well as number average molecular weights from municipal waste were obtained by epoxidation and ring-opening reaction with diethylene glycol. The bio-polyols were used to prepare open-cell polyurethane foams for applications in construction industry. It was noticed that the structures of the bio-polyols do not have a significant effect on the reactivity of the resultant polyurethane systems. The apparent densities of the final foams were comparable and in the range of 12–17 kg/m3. Beneficial effects of both the bio-polyols on the cellular structures as well as on the mechanical properties and thermal conductivity of the modified foams were observed, especially when a petrochemical polyol was replaced with 40–60 wt% of the bio-polyols.
|Journal series||Polymer, ISSN 0032-3861, e-ISSN 1873-2291|
|Publication size in sheets||0.5|
|Keywords in English||Cleaner production of bio-polyols; Open-cell foams; Polyurethanes|
|Score||= 100.0, 16-07-2020, ArticleFromJournal|
|Publication indicators||= 3; : 2017 = 1.163; : 2018 = 3.771 (2) - 2018=3.77 (5)|
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