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- Title
Open-Cell Spray Polyurethane Foams Based on Biopolyols from Fruit Seed Oils.
- Authors
Kurańska, Maria; Malewska, Elżbieta; Ożóg, Hubert; Sędzimir, Julia; Put, Aleksandra; Kowalik, Natalia; Michałowski, Sławomir; Zemła, Marcin; Kucała, Michał; Prociak, Aleksander
- Abstract
Natural oils from watermelon, cherry, black currant, grape and pomegranate fruit seeds were applied in the synthesis of biopolyols using the transesterification reaction. In this manuscript, the preparation possibility of open-cell foams from a polyurethane system in which petrochemical polyol was fully replaced with biopolyols is analyzed. Firstly, polyurethane foam systems were developed on a laboratory scale, and they were next tested under industrial conditions. It was shown that the foaming method has a significant impact on the foaming process and the cell structure of obtained foams as well as their thermal insulation properties. Based on the conducted research, it was found that the method of processing the polyurethane system has a significant impact on the properties of open-cell spray foams. Foams produced under industrial conditions have a much higher cell density, which has a positive effect on their selected physical–mechanical properties compared to foams produced on a laboratory scale. The open-cell biofoams obtained using a high-pressure machine had apparent densities 12–17 kg/m3, thermal conductivity coefficients 35–37 mW/m·K, closed-cell contents < 10% and were dimensionally stable at low and high temperatures.
- Subjects
FRUIT seeds; URETHANE foam; THERMAL conductivity; THERMAL insulation; FOAM cells; WATERMELONS; POMEGRANATE; OILSEEDS
- Publication
Polymers (20734360), 2024, Vol 16, Issue 8, p1145
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym16081145