Polymeric coatings effect on surface activity and mechanical behavior of high explosives
There is a continuing effort at Lawrence Livermore National Laboratory to formulate new plastic-bonded explosives (PBX) with enhanced energy and improved safety characteristics. We have found that these parameters depend mainly upon the polymer or plastic chosen as binder. Typically, these materials have 5 to 10 vol % polymer and the explosive may be treated as a solid coated with a polymeric film. In an effort to determine which properties of a polymer are advantageous here, we have examined in depth three polymers (Kel-F 800, Phenoxy PKHJ, and Kraton G 1650) and an insensitive explosive (1,3,5-triamino-2,4,6-trinitrobenzene (TATB)). We determined mechanical and rheological properties, surface characteristics, and acid-base behavior of the pure materials and composites (PBX). It was found that extensibility, glass transition temperature, and Lewis acidity surface wettability of the components of a PBX are governing factors in safety characteristics. 7 tables.
- Research Organization:
- Lawrence Livermore National Lab., CA
- OSTI ID:
- 7066030
- Journal Information:
- Ind. Eng. Chem., Prod. Res. Dev.; (United States), Vol. 19:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ORGANIC POLYMERS
MECHANICAL PROPERTIES
SURFACE PROPERTIES
TRANSITION TEMPERATURE
WETTABILITY
TATB
SURFACE COATING
AMINES
BINDERS
CHEMICAL EXPLOSIVES
EXPERIMENTAL DATA
NITRO COMPOUNDS
PH VALUE
PLASTICS
SAFETY
DATA
DEPOSITION
EXPLOSIVES
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POLYMERS
THERMODYNAMIC PROPERTIES
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives
360404 - Materials- Polymers & Plastics- Physical Properties- (-1987)