Surface characterization of an energetic material, pentaerythritoltetranitrate (PETN), having a thin coating achieved through a starved addition microencapsulation technique
The objective of this research was to: (1) determine the nature of a thin coating on an explosive material which was applied using a starved addition microencapsulation technique, (2) understand the coating/crystal bond, and (3) investigate the wettability/adhesion of plastic/solvent combinations using the coating process. The coating used in this work was a Firestone Plastic Company copolymer (FPC-461) of vinylchloride/trifluorochloroethylene in a 1.5/1.0 weight ratio. The energetic explosive examined was pentaerythritoltetranitrate (PETN). The coating process used was starved addition followed by a solvent evaporation technique. Surface analytical studies, completed for characterization of the coating process, show (1) evidence that the polymer coating is present, but not continuous, over the surface of PETN; (2) the average thickness of the polymer coating is between 16-32 A and greater than 44 A, respectively, for 0.5 and 20 wt % coated PETN; (3) no changes in surface chemistry of the polymer or the explosive material following microencapsulation; and (4) the presence of explosive material on the surface of 0.5 wt % FPC-461 coated explosives. 5 refs., 15 figs., 6 tabs.
- Research Organization:
- Mound Plant (MOUND), Miamisburg, OH (United States)
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 5630415
- Report Number(s):
- MLM-3348; ON: DE86012262
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPOLYMERS
ION SCATTERING ANALYSIS
X-RAY SPECTROSCOPY
PETN
ENCAPSULATION
SURFACE PROPERTIES
BINDING ENERGY
EXPERIMENTAL DATA
OPTICAL MICROSCOPY
PARTICLE SIZE
ROUGHNESS
SCANNING ELECTRON MICROSCOPY
SURFACE COATING
SURFACE TENSION
THIN FILMS
WETTABILITY
CHEMICAL ANALYSIS
CHEMICAL EXPLOSIVES
DATA
DEPOSITION
ELECTRON MICROSCOPY
ENERGY
ESTERS
EXPLOSIVES
FILMS
INFORMATION
MICROSCOPY
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NONDESTRUCTIVE ANALYSIS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERS
SIZE
SPECTROSCOPY
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)