Development of Autoclave Moldable Addition-Type Polyimides.

Abstract

Chemistry and processing modifications of the poly(Diels Alder) polyimide (PDA) resin were performed to obtain structural composites suitable for 589K (600 deg F) service. This work demonstrated that the PDA resin formulation developed under Contract NAS 3-17770 is suitable for service at 589K (600 deg F) for up to 125 hours when used in combination with Hercules HTS graphite fiber. Sandwich panels were autoclave molded using PDA/HTS skins and polyimide/glass honeycomb core. Excellent adhesion between honeycomb core and the facing skins was demonstrated. Fabrication ease was demonstrated by autoclave molding three-quarter scale YF-12 wing panels. jg

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1976
Accession Number
ADA305333

Entities

People

  • G. A. Zakrzewski
  • M. K. O'rell
  • R. Jason Jones
  • R. W. Vaughan

Organizations

  • TRW Inc.

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Anhydrides
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Fabrication
  • Failure Mode And Effect Analysis
  • Flexural Strength
  • Honeycomb Cores
  • Jet Propulsion
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Melting Point
  • Military Research
  • Organic Chemistry
  • Sandwich Panels

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials