The processing characteristics, mechanical properties and environmental resistance of fiber reinforced laminates based on a new family of amorphous thermoplastic polyimide matrix resins, designated K-polymers, are described,, Graphite fiber reinforced composites have been shown to possess excellent strength retention at temperatures as high as 232°C, excellent environmental resistance and unprecedented damage tolerance. Composites can be processed either by the vacuum bag/autoclave molding of tacky, drapable prepreg made using the polyimide precursor solutions or through automated tape laydown using a hot head acting on fully polymerized thermoplastic tape. These unique processing and product properties make K-polymers prime matrix resin candidates for use with high performance fibers such as graphite and “Kevlar” 49 for primary structures in aerospace applications.


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    Title :

    K-Polymer Composite Materials—A New Approach to Damage-Tolerant Aerospace Structures


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Congress and Exposition ; 1984



    Publication date :

    1984-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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