Improved High-Temperature Resistant Matrix Resins.

Abstract

A study was performed with the objective of developing matrix resins that exhibit improved thermo-oxidative stability over state of the art high temperature resins for use at temperatures up to 544K (700 deg F) and air pressures up to 0.7 MPa (100 psia). The work was based upon a TRW discovered family of polyimides currently licensed to and marketed by Ethyl Corporation as EYMYDR resins. The approach investigated to provide improved thermo-oxidative properties was to use halogenated derivatives of the diamine, 2,2-bis4-(4-AMINOPHENOXY)PHENYL)HEXAFLUOROPROPANE (4-BDAF). Polyimide neat resins and CelionR 12,000 composites prepared from fluorine substituted 4-BDAF demonstrated unexpectedly lower glass transition temperatures (Tg) and thermo-oxidative stabilities than the baseline 4-BDAF/PMDA polymer.

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Document Details

Document Type
Technical Report
Publication Date
Apr 21, 1989
Accession Number
ADA310395

Entities

People

  • G. E. Chang
  • H. E. Green
  • K. Ueda
  • M. K. O'rell
  • W. F. Wright

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Air Pressure
  • Alcohols
  • Anhydrides
  • Chemical Synthesis
  • Chemistry
  • Composite Material Fabrication
  • Composite Materials
  • Glass Transition Temperature
  • High Temperature
  • Infrared Spectra
  • Jet Propulsion
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.