Plasma and ion fluorination for chemical hardening of synthetic rubbers. Final report, 30 September 1988-30 September 1989
Technical Report
·
OSTI ID:7154072
The purpose of this Phase I SBIR program was to investigate ways of fluorinating the surfaces of rubber materials to reduce their susceptibility to wetting and permeation by chemical warfare agents. Nitrile, butyl, and neoprene rubbers were studied. Fluorination was accomplished by direct implantation of ions into the surface and by rf plasma fluorination with freon gases. The rubber materials were examined for contact angle of diethyl malonate (DEM) drops, critical surface tension, and DEM uptake, and were characterized microscopy and ESCA. Ion implantation led to embrittlement and cracking of the surfaces, causing more rapid wetting by DEM. Plasma fluorination tended to deposit a fluorocarbon film on the surface rather than to introduce fluorine into the material. Some of the fluorinated films exhibited greater DEM initial contact angles and slower absorption, although after three hours the absorption rate increased to that of the untreated rubbers. Hence, this treatment provided some temporary improvement, but it was insufficient for proper protection.
- Research Organization:
- Ionic Atlanta, Inc., GA (USA)
- OSTI ID:
- 7154072
- Report Number(s):
- AD-A-216388/9/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
360605 -- Materials-- Radiation Effects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450600* -- Military Technology
Weaponry
& National Defense-- Chemical & Biological-- (1990)
ABSORPTION
ALKYL RADICALS
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMICAL REACTIONS
CHEMICAL WARFARE AGENTS
CRACKS
DICARBOXYLIC ACIDS
DOCUMENT TYPES
ELASTOMERS
ELEMENTS
EMBRITTLEMENT
ETHYL RADICALS
FILMS
FLUIDS
FLUORINATION
FLUORINE
GASES
HALOGENATION
HALOGENS
HARDENING
HYDROCARBONS
ION IMPLANTATION
IONS
MALONIC ACID
MATERIALS
MICROSCOPY
NEOPRENE
NONMETALS
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
PLASMA
POLYMERS
PROGRESS REPORT
RADICALS
RESEARCH PROGRAMS
RUBBERS
SALTS
SURFACE PROPERTIES
SURFACE TENSION
SURFACES
SYNTHETIC MATERIALS
WEAPONS
WETTABILITY
360603 -- Materials-- Properties
360605 -- Materials-- Radiation Effects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450600* -- Military Technology
Weaponry
& National Defense-- Chemical & Biological-- (1990)
ABSORPTION
ALKYL RADICALS
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMICAL REACTIONS
CHEMICAL WARFARE AGENTS
CRACKS
DICARBOXYLIC ACIDS
DOCUMENT TYPES
ELASTOMERS
ELEMENTS
EMBRITTLEMENT
ETHYL RADICALS
FILMS
FLUIDS
FLUORINATION
FLUORINE
GASES
HALOGENATION
HALOGENS
HARDENING
HYDROCARBONS
ION IMPLANTATION
IONS
MALONIC ACID
MATERIALS
MICROSCOPY
NEOPRENE
NONMETALS
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
PLASMA
POLYMERS
PROGRESS REPORT
RADICALS
RESEARCH PROGRAMS
RUBBERS
SALTS
SURFACE PROPERTIES
SURFACE TENSION
SURFACES
SYNTHETIC MATERIALS
WEAPONS
WETTABILITY