| Title | Closed Cell Rigid Polyurethane Foams Based on Low Functionality Polyols: Research of Dimensional Stability and Standardised Performance Properties |
|---|---|
| ID_Doc | 25885 |
| Authors | Kairyte, A; Kremensas, A; Balciunas, G; Czlonka, S; Strakowska, A |
| Title | Closed Cell Rigid Polyurethane Foams Based on Low Functionality Polyols: Research of Dimensional Stability and Standardised Performance Properties |
| Year | 2020 |
| Published | Materials, 13, 6 |
| Abstract | Currently, polyurethane foam producers come across the several problems when petroleum-based polyols are replaced with low functionality biomass, or waste-based, polyols. In addition, the dilemma is intensified with regulations that require full or partial replacement of blowing agents that can cause high ozone depletion with alternatives like water, which causes the formation of CO2. Therefore, these gases diffuse out of the foam so quickly that the polymeric cell walls cannot withstand the pressure, consequently causing huge dimensional changes at ambient temperature and humidity. Even though the theoretical stoichiometric balance is correct, the reality shows that it is not enough. Therefore, polyethylene terephthalate waste-based polyol was chosen as a low functionality polyol which was modified with high functionality sucrose-based polyol in order to obtain dimensionally stable polyurethane foams in the density range of 30-40 kg/m(3). These more stable foams are characterized by linear changes no higher than 0.5%, short-term water absorption by partial immersion no higher than 0.35 kg/m(2), and water vapor resistance factors up to 50. In order to obtain thermally efficient polyurethane foams, conventional blowing agents and water systems were implemented, thus, assuring thermal conductivity values in the range of 0.0198-0.0204 W/(m.K) and obtaining products which conform to all the requirements for performance of sprayed and factory-made polyurethane foam standards EN 14315-1 and EN 13165. |
| https://www.mdpi.com/1996-1944/13/6/1438/pdf?version=1584860291 |
Similar Articles
| ID | Score | Article |
|---|---|---|
23887
|
Amundarain, I; Miguel-Fernández, R; Asueta, A; García-Fernández, S; Arnaiz, S Synthesis of Rigid Polyurethane Foams Incorporating Polyols from Chemical Recycling of Post-Industrial Waste Polyurethane Foams(2022)Polymers, 14, 6 | |
| 16832
|
Kuranska, M; Leszczynska, M; Malewska, E; Prociak, A; Ryszkowska, J Implementation of Circular Economy Principles in the Synthesis of Polyurethane Foams(2020)Polymers, 12, 9 | |
| 27235
|
Kuranska, M; Leszczynska, M; Kubacka, J; Prociak, A; Ryszkowska, J Effects of Modified Used Cooking Oil on Structure and Properties of Closed-Cell Polyurethane foams(2020)Journal Of Polymers And The Environment, 28.0, 10 | |
| 21897
|
Njuguna, JK; Muchiri, P; Mwema, FM; Karuri, NW; Herzog, M; Dimitrov, K Determination of thermo-mechanical properties of recycled polyurethane from glycolysis polyol(2021) | |
| 13106
|
Sarim, M; Nikje, MMA; Dargahi, M Preparation and Characterization of Polyurethane Rigid Foam Nanocomposites from Used Cooking Oil and Perlite(2023) | |
| 9557
|
Leszczynska, M; Malewska, E; Ryszkowska, J; Kuranska, M; Gloc, M; Leszczynski, MK; Prociak, A Vegetable Fillers and Rapeseed Oil-Based Polyol as Natural Raw Materials for the Production of Rigid Polyurethane Foams(2021)Materials, 14.0, 7 | |
| 9016
|
Ivdre, A; Abolins, A; Volkovs, N; Vevere, L; Paze, A; Makars, R; Godina, D; Rizikovs, J Rigid Polyurethane Foams as Thermal Insulation Material from Novel Suberinic Acid-Based Polyols(2023)Polymers, 15.0, 14 | |
| 13977
|
Paciorek-Sadowska, J; Borowicz, M; Chmiel, E; Lubczak, J Use of a Mixture of Polyols Based on Metasilicic Acid and Recycled PLA for Synthesis of Rigid Polyurethane Foams Susceptible to Biodegradation(2021)International Journal Of Molecular Sciences, 22, 1 | |
| 5441
|
Kowalczyk, L; Korol, J; Chmielnicki, B; Laska, A; Chuchala, D; Hejna, A One More Step towards a Circular Economy for Thermal Insulation Materials-Development of Composites Highly Filled with Waste Polyurethane (PU) Foam for Potential Use in the Building Industry(2023)Materials, 16, 2 | |
| 26926
|
Kuranska, M; Barczewski, R; Barczewski, M; Prociak, A; Polaczek, K Thermal Insulation and Sound Absorption Properties of Open-Cell Polyurethane Foams Modified with Bio-Polyol Based on Used Cooking Oil(2020)Materials, 13, 24 |