Accession Number:

ADB000374

Title:

Exploratory Development of Processable Laminating Resins With Improved Toughness and Moderate Temperature Capability - Phase 2 and 3

Descriptive Note:

Final technical rept. 1 Jun 1973-1 Jun 1974

Corporate Author:

TRW SYSTEMS GROUP REDONDO BEACH CA

Report Date:

1974-07-01

Pagination or Media Count:

57.0

Abstract:

A new polyimide resin is developed that provides processing characteristics and basic mechanical properties equivalent to those of commercially available high performance epoxy resins. This new resin, DONA polyimide resin, provides high resistance to moisture thus overcoming a major problem associated with the high performance epoxy resins. An alternative polyimide resin, DAS polyimide resin, is also identified but not developed to the same level as the DONA resin. Fracture toughness studies are performed on DONAA-S GRAPHITE FIBER COMPOSITES AND COMPARISONS ARE DRAWN WITH EPOXYA-S graphite fiber composites. Strength retention at 365F of these composites is equivalent to that of high performance epoxy systems.

Subject Categories:

  • Polymer Chemistry
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE