| Title | Thermal Insulation and Sound Absorption Properties of Open-Cell Polyurethane Foams Modified with Bio-Polyol Based on Used Cooking Oil |
|---|---|
| ID_Doc | 26926 |
| Authors | Kuranska, M; Barczewski, R; Barczewski, M; Prociak, A; Polaczek, K |
| Title | Thermal Insulation and Sound Absorption Properties of Open-Cell Polyurethane Foams Modified with Bio-Polyol Based on Used Cooking Oil |
| Year | 2020 |
| Published | Materials, 13, 24 |
| Abstract | The main goal of this work was to evaluate the thermal insulation and sound absorption properties of open-cell rigid polyurethane foams synthesized with different contents of cooking oil-based polyol. The content of the applied bio-polyol as well as flame retardant (triethyl phosphate) in the foam formulation had a significant influence on the cellular structures of the materials. The open-cell polyurethane foams were characterized by apparent densities in the range 16-30 kg/m(3). The sound absorption coefficients of the polyurethanes with various contents of bio-polyol were determined using the standing wave method (Kundt's tube) in the frequency range of 100-6300 Hz. The effect of the content of the bio-polyol and flame retardant on the coefficient of thermal conductivity (at average temperatures of 0, 10 and 20 degrees C) as well as the compressive strength (at 20 and -10 degrees C) was analyzed. Different trends were observed in terms of the thermal insulation properties and sound absorption ability of the open-cell polyurethanes due to the addition of bio-polyol. In conclusion, it is necessary to use systems containing both petrochemical and bio-based raw materials. |
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