DEVELOPMENT OF FLEXIBLE POLYMERS AS THERMAL INSULATION IN SOLID-PROPELLANT ROCKET MOTORS

Abstract

The flexibilization of epoxy, melamine, phenolic, urethane, and furan resins for use as thermal insulation binders in end-burning, solid-propellant rocket motors is described. The effect of aging on the mechanical properties of two externally plasticized epoxy resins was determined. For several resins, asbestos fibers, potassium oxalate, and magnesium carbonate fillers were evaluated in the oxyacetylene-torch test and static-motor firings. The char rates (from motor firings) and densities for the motor promising systems were: 3.0 mil/sec, 1.41 gm/cu cm for an asbestos-filled Epon 328-Nadic methyl anhydride-castor oil formulation; 2.4 mil/sec, 1.52 gm/cu cm for an asbestos- filled Araldite DP-437 NMA formulation; 2.7 mil/sec, 1.37 gm/cu cm for an asbestos-filled nonyl phenol-formaldehyde-Syl-Kem 90 formulation and 2.1 mil/sec, 1.50 gm/cu cm for asbestos-oxalate-filled phenolformaldehyde-Syl-Kem 90 formulation.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1962
Accession Number
AD0282730

Entities

People

  • J. Duff
  • N. Vasileff
  • T. Walton

Organizations

  • ARCO

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alcohols
  • Asbestos
  • Biomedical And Dental Materials
  • Body Weight
  • Composite Materials
  • Epoxy Resins
  • Furan Resins
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Physical Properties
  • Plasticizers
  • Plastics
  • Polymeric Films
  • Resins
  • Tensile Strength
  • Thermosetting Plastics

Readers

  • Reinforced Composite Materials
  • Rocket Propulsion.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems