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RESEARCH ON IMPROVED EPOXY RESINS.
UNION CARBIDE CORP BOUND BROOK N J PLASTICS DIV
The purpose of this program is to define the correlation of novel polyepoxide molecular configurations with the physical properties of cured resins as the initial step in providing significant improvements in filament reinforced plastics for deep submergence structures. The synthesis and evaluation of new epoxy resin configurations was continued. Increased emphasis was placed on greater realization of the potential performance of the more promising epoxy resins through such variables as formulation, handling technique, resin quality and curing schedules. Significant improvement in the interlaminar shear strength of ERRA-0300 was achieved through formulation. Preliminary data for shear strength after water boil and for flexural stress rupture properties in salt water are reported for ERLA-0400, ERRA0300 and ERNA-0386 to indicate the type of performance to be expected under service conditions. Physical property data accumulated under the program were compared to the molecular spacing within each epoxy resin configuration. Author
Quarterly progress rept. no. 7, 1 Oct 64-1 Jan 65,
See also AD-607 295.