Accession Number : ADA306161

Title :   Evaluation of Polyimide/Glass Fiber Composites for Construction of Light Weight Pressure Vessels for Cryogenic Propellants.

Descriptive Note : Rept. for Jun 71-Sep 72,

Corporate Author : STRUCTURAL COMPOSITES INDUSTRIES INC POMONA CA

Personal Author(s) : Petker, I. ; Segimoto, M.

PDF Url : ADA306161

Report Date : SEP 1973

Pagination or Media Count : 150

Abstract : The application of polyimide resin as a matrix for glass filament-wound thin metal-lined pressure vessels was studied over a temperature range of -320 to 600 degrees F. Keramid 601 polyimide was found to perform quite well over the entire range of temperature. Hoop stress values of 425 ksi were determined at 75 degrees F which is equivalent to epoxy resin in similar structures. At -320 and 600 degrees F, 125 and 80% of this strength was retained. Thermal ageing at 500 degrees F for up to 50 hours was studied with severe reduction in strength, but there is evidence that this reduction could be improved. Another polyimide resin studied was P10PA which was found to have processing characteristics inappropriate for filament-winding. NOL ring tensile and shear data was determined from both resins with S-glass. Pressure vessel design, fabrication and test procedures are described in detail. (MM)

Descriptors :   *FIBER REINFORCED COMPOSITES, *PROPELLANT TANKS, *POLYIMIDE PLASTICS, *CRYOGENIC PROPELLANTS, SHEAR PROPERTIES, THERMAL PROPERTIES, FILAMENT WOUND CONSTRUCTION, POLYMERS, TENSILE PROPERTIES, STRENGTH(MECHANICS), LININGS, GLASS FIBERS, PRESSURE VESSELS, LIGHTWEIGHT, PREPREGS, EPOXY RESINS, POLYIMIDE RESINS.

Subject Categories : Laminates and Composite Materials
      Plastics
      Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE