EVALUATION OF NITROCELLULOSE-BASE SPONGE PROPELLANTS PREPARED WITH THE USE OF BLOWING AGENTS

Abstract

Preparation of sponge propellants by inclusion of a chemical blowing agent in a nitrocellulose-solvent system was investigated. With fibrous nitrocellulose poor grains were obtained due to the difficulty in removing the solvent. The use of nitrocellulose in the form of ball powder permitted inclusion of all the ingredients and plasticizer in a mold and thorough dispersion of blowing agent in the mix. Results indicated that a wide variety of foam densities could be obtained by different plasticizer systems and concentration of flowing agent. The finished grains were unsatisfactory due to the presence of large voids within the matrix. Closed bomb data indicated no effect of porosity on burning rate. Thermal stability tests were unsatisfactory.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0262655

Entities

People

  • Ernest F. Stevenson
  • Frank J. Masuelli
  • Joseph S. Stack
  • Russell L. Trask

Organizations

  • Picatinny Arsenal

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Burning Rate
  • Cells
  • Closed Bomb Tests
  • Combustion
  • Decomposition
  • Explosives
  • Films
  • Government Procurement
  • Low Temperature
  • Materials
  • Materials Laboratories
  • Melting Point
  • Munitions
  • Nitrocellulose
  • Propellant Grains
  • Propellants
  • Thermal Stability

Readers

  • Polymer Science and Engineering.
  • Rocket Propulsion.