Accession Number:

AD0262655

Title:

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

Descriptive Note:

Corporate Author:

PICATINNY ARSENAL DOVER NJ FELTMAN RESEARCH LABS

Report Date:

1961-07-01

Pagination or Media Count:

26.0

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.

Subject Categories:

  • Properties of Metals and Alloys
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE