6533b7cefe1ef96bd125789e
RESEARCH PRODUCT
Bio-based rigid high-density polyurethane foams as a structural thermal break material
P. CabulisU. CabulisKaspars KalninsJanis AndersonsM. Kirplukssubject
chemistry.chemical_classificationMaterials science0211 other engineering and technologiesStiffness020101 civil engineering02 engineering and technologyBuilding and ConstructionPolymer0201 civil engineeringchemistry.chemical_compoundThermal conductivityPetrochemicalCompressive strengthchemistry021105 building & constructionThermalmedicineGeneral Materials Sciencemedicine.symptomComposite materialCivil and Structural EngineeringPolyurethaneThermal breakdescription
Abstract Sustainable development of building industry implies increasing usage of green materials. With this aim and for the intended application as a structural thermal break material, rigid high-density polyurethane foams have been manufactured using polyols derived from renewable resources - tall oil fatty acids. Thermal conductivity, compressive strength and stiffness of the foams of density ranging from ca. 100 to 680 kg/m3 have been determined. Comparison of the bio-based foams with reference foams derived from petrochemical resources demonstrated similar performance characteristics thus suggesting that bio-based foams can also serve as structural thermal break materials. Analytical models are shown to enable estimation of density dependence of the thermal and mechanical properties of foams using the respective experimentally determined characteristics of the monolithic polyurethane polymer.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-11-01 | Construction and Building Materials |