Accession Number : ADA302415

Title :   Hybridized Polymer Matrix Composites.

Descriptive Note : Final rept. Jun 78-Jun 80,

Corporate Author : GRUMMAN AEROSPACE CORP BETHPAGE NY

Personal Author(s) : London, Arnold

PDF Url : ADA302415

Report Date : JUL 1981

Pagination or Media Count : 119

Abstract : This study program has defined design approaches and materials from which can be fabricated pyrostatic graphite/epoxy (Gr/Ep) laminates that show improved retention of graphite particulates when subjected to burning. Sixteen hybridized plus two standard Gr/Ep laminates were designed, fabricated, and tested in an effort to eliminate the release of carbon (graphite) fiber particles from burned/ burning, mechanically disturbed samples. (The term pyrostatic is defined as meaning mechanically intact in the presence of fire.) The main thrust of this program was aimed at the formulation of graphite particulate retentive laminates whose constituent materials, cost of fabrication, and physical and mechanical properties were not significantly different from existing Gr/Ep composites. Therefore, all but one laminate (a Celion graphite/bis-maleimide polyimide) were based on an off-the-shelf Gr/Ep, the AS-1/35O1-5A system. Of the 16 candidates studied, four thin (10-ply) and four thick (50-ply) hybridized composites are recommended. Panels of the selected laminates were delivered to the NASA-Lewis Research Center. jg p.3

Descriptors :   *POLYMERS, *COMPOSITE MATERIALS, *MATRIX MATERIALS, *HYBRID SYSTEMS, FIBERS, MECHANICAL PROPERTIES, PHYSICAL PROPERTIES, LAMINATES, FABRICATION, GRAPHITE, CARBON, COSTS, COMBUSTION, PARTICLES, RETENTION(GENERAL), SAMPLING, RELEASE, PARTICULATES, EPOXY COMPOSITES.

Subject Categories : Laminates and Composite Materials
      Inorganic Chemistry
      Polymer Chemistry
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE