THE ALTERATION OF MECHANICAL PROPERTIES OF CORD UNDER THE INFLUENCE OF IONIZING RADIATION

Journal Article · Wed Feb 01 04:00:00 EST 1961 · Plaste u. Kautschuk

OSTI ID:4820276

Krejcik, M

The increasing use of ionizing radiation in the region from 1 to 5 x 10/ sup 7/ rep for the vulcanization of rubber tires has shown that in the manufacture of these tires the mechanical properties of cord are affected by irradiation within this region. In order to select the most resistant core types, samples from different cord materials were irradiated with Co/sup 60/ gamma rays in the region from 10/sup 4/ to 1O/sup 8/ rep. For this purpose. a special irradiation assembly was constructed using as the radiation source, 200 c of Co/sup 60/. Cord types, Terylen-,'' Dederon-,'' Kapron-,'' Silon-,'' Nylon-'' Rudnik-'' Cordenka-,'' and Egyptian cotton cord, were examined and after irradiation these samples were tested for stability, strength, elasticity, and extensibility. It was found that ionizing radiation in the presence of air reduced the strength and elasticity of all core types examined. The least resistance was shown by the polyamid cords (Silon, Kapron, and Nylon), while the highest was shown by Terylen (a polyester of terephthalic acid). (OID)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-024262
• OSTI ID: 4820276
• Journal Information: Plaste u. Kautschuk, Journal Name: Plaste u. Kautschuk Vol. Vol: 8
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIR
AMIDES
COBALT 60
COTTON
ELASTICITY
ENVIRONMENT
EXPANSION
GAMMA RADIATION
GAMMA SOURCES
HEAT TREATMENTS
IRRADIATION
MECHANICAL PROPERTIES
METALS, CERAMICS, AND OTHER MATERIALS
NYLON
PHTHALIC ACID
POLYESTERS
POLYMERS
RADIATION DOSES
RADIATION EFFECTS
RUBBER
SILOE
STABILITY
TENSILE PROPERTIES
TEREPHTHALIC ACID
TERYLENE
TESTING
TEXTILES
VULCANIZATION
WIRES