CASTABLE EXPLOSIVE COMPOSITIONS BASED ON DINITROPROPYLACRYLATE AND HMX
Abstract
The castable explosive, HMX/dinitropropylacrylate, was improved by formulation modifications to obtain higher energy, better physical properties and stability, and greater efficiency in preparation. Use of volatile liquids in mixing operations, special casting techniques, and selection of optimum HMX particle size blends resulted in solids loadings of 87 percent and higher with corresponding detonation velocities exceeding 8600 meters per second. Optimization of monomer inhibitor concentration made it possible to eliminate pre-processing DNPA purification, yet at the same time obtain adequate storage stability. Use of a new curative, cobalt acetyl acetonate, greatly facilitated curing by reducing time and temperature and eliminating the necessity for oxygen exclusion. Resulting castings were harder, more uniform, and more stable, with 150 C VTS values as low as 2.4 cc/g/48 hours. Two new copolymers of DNPA were prepared and evaluated as energetic binders, one with difluoraminopropylacrylate, the other with dodecafluoroheptylacrylate. Detonation velocities, as predicted by computation, were comparable to those for DNPA homopolymer at equivalent HMX loadings.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1967
- Accession Number
- AD0385014
Entities
People
- Barbara A. Stott
Organizations
- Naval Air Weapons Station China Lake