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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/61558

    Título
    Thermal conductivity aging and mechanical properties of polyisocyanurate (PIR) foams produced with different contents of HFO
    Autor
    Torres Regalado, Patricia
    Santiago Calvo, Mercerdes
    Gimeno, Josep
    Rodríguez Pérez, Miguel ÁngelAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    Wiley
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Applied Polymer Science, 2023.
    Zusammenfassung
    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.
    Materias Unesco
    33 Ciencias Tecnológicas
    Palabras Clave
    Environmentally friendly
    Hydrofluorolefins
    Modeling
    ISSN
    0021-8995
    Revisión por pares
    SI
    DOI
    10.1002/app.54504
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (grant DIN2019-010840)
    Ministerio de Ciencia, Innovación y Universidades (MCIU) - (RTI2018 – 098749-B-I00, PID2021-127108OB-I00, TED2021-130965B-I00 y PDC2022-133391-I00)
    Junta de Castilla y León y programa EU-FEDER (VA202P20)
    Version del Editor
    https://onlinelibrary.wiley.com/doi/full/10.1002/app.54504
    Propietario de los Derechos
    © 2023 The Author(s)
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/61558
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • Cellmat - Artículos de Revista [4]
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    Nombre:
    Thermal-conductivity-aging.pdf
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    Universidad de Valladolid

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