An experimental study was undertaken to investigate the commercial process development of polyimide foams for applications such as the thermal protection system for a cryogenic tank integrated structure. The objective of cryogenic foam development is to develop polyimide foams caused from the reaction of monomeric solutions with increased use temperature. Using the ASTM D - 3574 specification, different foam densities ranging from 0.5 to 8.0 PCF were tested for flatwise tensile and compression strength at room and cryogenic temperatures (-65 degree F). Mechanical property results showed that the higher density TEEK(trademark) foams would be more suitable for space applications that require foams with higher structural strength. However, if the thermal protection and lighter weight (density) is of primary concern, TEEK(trademark) foams with lower density would suffice. Results showed that the flatwise tensile and compression strength was virtually unaffected by cryogenic temperature testing. Only TEEK(trademark) foams with higher densities experienced reductions in compression strength compared to tensile strength.


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    Titel :

    Characterization of polyimide foams for ultra-lightweight space structures


    Beteiligte:
    Veazie, D.R. (Autor:in) / Vincent, S. (Autor:in) / Weiser, E. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    3 Seiten


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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