Accession Number : ADP007473

Title :   High Compressive Strength Ordered Polymer Fibers and Films Via Sol Gel Microcomposite Processing,

Corporate Author : FOSTER-MILLER INC WALTHAM MA

Personal Author(s) : Covino, J. ; Klemm, K. ; Dykema, J.

Report Date : FEB 1991

Pagination or Media Count : 14

Abstract : Sol-gel glass microcomposite processing of polybenzobisthiazole (PBZT) films increased the compressive strength of PBZT/PEEK film laminates by more than four times. The presence of glass within microfibrillar regions of PBZT/sol-gel glass microcomposite films inhibited microbuckling during compression and greatly increased resistance to compressive failure. Studies of PBZT/sol-gel glass microcomposite film morphology conducted at UMass by E.L. Thomas and at Penn State by C. Pantano indicated sol-gel glass precursor solutions had condensed within PBZT to produce a fine-scale (100 to 300A) granular structure, homogeneously distributed throughout PBZT lamellae of microfibrils. In a parallel effort, we have successfully extended sol-gel microcomposite processing technology for the improvement of compressive strength in ordered polymer fibers. Details concerning our results will be discussed.

Descriptors :   *COMPRESSIVE PROPERTIES, COMPRESSION, FAILURE, FIBERS, FILMS, FINES, GELS, GLASS, LAMINATES, MORPHOLOGY, POLYMERS, PRECURSORS, PROCESSING, REGIONS, RESISTANCE, STRUCTURES.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE