Synthesis of lignopolyurethane foams based on wastes from biochemical industries, both freshly obtained technical-grade hydrolytic lignins and those stored in dumps for a long time, was studied. It was found out that the lignopolyurethane foams obtained have high heat-insulating properties conforming to the standards of heat-insulating materials. It was shown for the first time that prolonged storage under atmospheric conditions of technical-grade hydrolytic lignin contained in lignopolyurethane foams has no significant effect on their physicomechanical properties.
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Krutov, S.M., Ipatova, E.V., Kosyakov, D.S. et al. Lignopolyurethane foam based on hydrolytic lignin. Russ J Appl Chem 89, 155–159 (2016). https://doi.org/10.1134/S1070427216010249
- Polyurethane Foam
- Thermal Destruction