THE INFLUENCE OF $gamma$-RADIATION AND NEUTRONS ON LACQUER COATINGS
An investigation was made of the influence of gamma radiation and of neutrons on protective coatings of various filmforming materials, such as chlorinated rubber, chlorinated polyvinyl chloride, polyvinyl butyral, copolymer of vinyl chloride and isobutyl ether or polyvinyl alcohol, alkyd resin, phenol- formaldehyde resin and polymerized linseed oil. The radiation time was 3 mo (2,160 hr) at 10,800 r. Thoroughly cleaned test plates were coated twice at 24-hr intervals. Twelve plates were coated with each lacquer; 4 of them were irradiated, 4 were aged under normal atmospheric conditions, and 4 were examined at the beginning of the experiment for physicochemical properties. Samples for irradiation were fastened to a regular 16-wall drum 26 cm in dia., equidistant from the radiation source. In the center of the drum a Pt needle with 100 mg of Ra/sup 226/ screened by Be was placed. Results showed that coatings made of polyvinyl butyral, copolymer of vinyl chloride and isobutyl ether of polyvinyl alcohol, alkyd resin or polymerized linseed oil had much better elasticity and shock resistance than samples aged under normal atmospheric conditions. Irradiated samples of coatings made of chlorinated rubber, chlorinated polyvinyl chloride and phenolformaldehyde resins lost their elasticity and adhesion. (OID)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-024263
- OSTI ID:
- 4818304
- Journal Information:
- Przemyst Chem., Journal Name: Przemyst Chem. Vol. Vol: 39
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
AGING
ALCOHOLS
ALDEHYDES
BERYLLIUM
BUTYL RADICALS
CHLORIDES
CHLORINATION
CLEANING
COATING
CONFIGURATION
ELASTICITY
ETHERS
FILMS
GAMMA RADIATION
HEAT TREATMENTS
IMPACT SHOCK
IRRADIATION
LACQUERS
METALS, CERAMICS, AND OTHER MATERIALS
NEUTRON SOURCES
NEUTRONS
OILS
PHENOLS
PLATES
POLYMERS
POLYVINYLS
RADIATION EFFECTS
RADIUM 226
RESINS
RUBBER
SENSITIVITY
VINYL RADICALS