RT info:eu-repo/semantics/article
T1 Thermal conductivity aging and mechanical properties of polyisocyanurate (PIR) foams produced with different contents of HFO
A1 Torres Regalado, Patricia
A1 Santiago Calvo, Mercerdes
A1 Gimeno, Josep
A1 Rodríguez Pérez, Miguel Ángel
K1 Environmentally friendly
K1 Hydrofluorolefins
K1 Modeling
K1 33 Ciencias Tecnológicas
AB Polyisocyanurate (PIR) foam is a thermal insulating material widely used in many industries such as construction, refrigeration, piping/tubing among others. In this research the production, characterization and modeling of the thermal conductivity of PIR foams synthesized with a hydrofluorolefin (HFO 1233zd (E)) as physical foaming agent have been studied. The results have shown that increasing the amount of HFO reduces the density, but the cellular structure is not modified. The relative mechanical properties are the same for the concentrations of HFO considered. In addition, the aging of thermal conductivity as a function of time has been studied in detail. The experimental results have been deeply analyzed using a theoretical model to predict the thermal conductivity The results show that the thermal conductivity and the rate of aging at early stages are reduced for the higher concentrations of HFO. This result has been related to the lower temperature reached during the foaming reaction for higher contents of the physical blowing agent.
PB Wiley
SN 0021-8995
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/61558
UL https://uvadoc.uva.es/handle/10324/61558
LA eng
NO Journal of Applied Polymer Science, 2023.
NO Producción Científica
DS UVaDOC
RD 22-dic-2024