Characterization of insulation performance, poststability, and foaming process of rigid polyurethane sandwich panel for cold storage warehouse

Jie Xu, Tao Wu, Wei Sun, Chuang Peng

    Research output: Journal PublicationArticlepeer-review

    4 Citations (Scopus)
    2 Downloads (Pure)

    Abstract

    Polyurethane (PU) is a commonly used insulation material for cold storage warehouses. The insulation performance of PU sandwich panels made from blended blowing agents were reassessed by k-factor measurements and insulation thickness calculation based on the cold warehouse design standard, which has proven the significant impact of blowing agent difference on energy saving. The foam poststability was also evaluated by mathematic profiling. The developed three-dimensional paraboloid model based on gridding measurements has provided a scientific method for panel shrinkage evaluation. Cell microstructure characterization and postgrowth angle coefficients calculation were further performed for better understanding the shrinkage problem at the microscopic level. The foaming process model of continuous panel production was developed based on reactivity profiling characterization which has provided a theoretical solution to panel processing.

    Original languageEnglish
    Article number04017138
    JournalJournal of Materials in Civil Engineering
    Volume29
    Issue number9
    DOIs
    Publication statusPublished - 1 Sep 2017

    Keywords

    • Cold warehouse
    • Insulation
    • Microstructure
    • Polyurethane
    • Sandwich panel
    • Shrinkage

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction
    • Materials Science (all)
    • Mechanics of Materials

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