STP1116

    Fundamental Aspects of Thermal Conductivity Aging and Dimensional Stability of Rigid Polyurethane Foams

    Published: Jan 1991


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    Abstract

    One of the possible alternatives to eliminate the future use of CFC-11 as an essential blowing agent in rigid polyurethane foams, consists of a partial or complete replacement by carbon dioxide. The two major problems associated with the use of high levels of CO2 are first, a significant deterioration of thermal insulation capacity with time, and second, a potential loss of dimensional stability due to the rapid effusion of CO2. The paper gives an overview of the scope and limitations of this approach based on the results of extensive computational analysis and simulation.

    Keywords:

    Polyurethane foams, thermal conductivity, thermal insulation, aging, dimensional stability, CFC-replacement


    Author Information:

    Smits, GF
    Sr. Research ChemistSr. Associate Scientist, Dow Europe's Polyurethane R&D laboratories, Terneuzen,

    Thoen, JA
    Sr. Research ChemistSr. Associate Scientist, Dow Europe's Polyurethane R&D laboratories, Terneuzen,


    Paper ID: STP16346S

    Committee/Subcommittee: C16.30

    DOI: 10.1520/STP16346S


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