ELASTOMERIC INSULATION FOR SOLID PROPELLANT ROCKET MOTORS

Abstract

The development of flexible, elastomeric-based, solid propellant rocket motor case insulation is discussed. The effect on insulation properties of type of asbestos, of liquid versus solid elastomers, and of methods of dispersing fibrous compounding ingredients are reported. Oxyacetylene torch and static motor firing test data for some of the better insulation materials developed, as well as for some commercial materials, are presented. A material with 40 percent elongation, 1,34 gm/cc density, performance index of 95 sq cm sec/gm and erosion rate of 2.0 mils/sec was the most promising insulation developed. The material is a 55/45 butadiene/acrylonitrile compound containing phenol furfural resin, asbestos and oxyazoline wetting agent. It was satisfactorily bonded to aluminum and to steel by conventional bonding agent. The thermal properties of this vulcanizate are not affected by oven aging for one week at 70C.

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Document Details

Document Type
Technical Report
Publication Date
Oct 27, 1964
Accession Number
AD0609001

Entities

People

  • D. H. Sale

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force Facilities
  • Asbestos
  • Chemistry
  • Elastomers
  • Insulation
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Plastics
  • Polymers
  • Reinforced Plastics
  • Resins
  • Resistance
  • Rocket Engines
  • Test Facilities
  • Thermal Properties
  • Vulcanizates

Readers

  • Polymer Science and Engineering.
  • Rocket Propulsion.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems