Effects of tritium gas exposure on the dynamic mechanical properties of EPDM elastomer

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Fusion Science and Technology

OSTI ID:22109414

Clark, E. A.; Staack, G. C. ^[1]

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1. Savannah River National Laboratory, Building 773-A, Aiken, SC 29808 (United States)

Samples of ethylene propylene diene monomer (EPDM) elastomer were exposed to tritium gas in closed containers at 101 kPa (1 atmosphere) pressure and ambient temperature for about one week. Tritium exposure effects on the samples were characterized by dynamic mechanical analysis (DMA) and radiolysis products were characterized by measuring the total final pressure and composition in the exposure containers at the end of exposure period. There was no effect of one week tritium exposure on the glass transition temperature, Tg, of the samples tested. Impurity gases produced in the closed containers included HT and lesser amounts of H{sub 2}, DTO, and CT{sub 4}. The total pressure remained the same during exposure. (authors)

• OSTI ID: 22109414
• Journal Information: Fusion Science and Technology, Vol. 54, Issue 2; Conference: 8. international conference on tritium science and technology, Rochester, NY (United States), 16-21 Sep 2007; Other Information: Country of input: France; 3 refs; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMBIENT TEMPERATURE
CONTAINERS
ETHYLENE
GASES
GLASS
IMPURITIES
MECHANICAL PROPERTIES
MONOMERS
PLASTICS
PROPYLENE
RADIOLYSIS
TRANSITION TEMPERATURE
TRITIUM