Ethylene-propylene-diene monomer (EPDM) and fluorocarbon (FKM) elastomers in the geothermal environment
Thermal and hydrolytic processes that are likely to occur when hydrocarbon and fluorocarbon elastomers are subjected to geothermal conditions are discussed. Polyhydrocarbon backbones have good chemical resistance, but many cross-links present in cured polyhydrocarbons can be hydrolyzed under geothermal conditions. Perfluorinated elastomers have excellent thermal and hydrolytic stability, although they are potentially susceptible to hydrolytic degradation. The cross-links present in cured perfluorocarbon elastomers are probably also susceptible to hydrolysis under severe conditions. It seems that improvements can be made in geothermal seals if they can be cured by processes that yield chemically stable cross-links.
- Research Organization:
- University of Akron, Institute of Polymer Science, 304 E. Buchtel Ave., Akron, OH 44325
- OSTI ID:
- 5318243
- Journal Information:
- J. Test. Eval.; (United States), Journal Name: J. Test. Eval.; (United States) Vol. 11:4; ISSN JTEVA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
150903* -- Geothermal Engineering-- Corrosion
Scaling & Materials Development
BRINES
CARBON COMPOUNDS
CARBON FLUORIDES
CHEMICAL REACTIONS
CROSS-LINKING
CURING
DECOMPOSITION
ELASTOMERS
ETHYLENE PROPYLENE DIENE POLYMERS
FLUORIDES
FLUORINE COMPOUNDS
GEOTHERMAL SYSTEMS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROLYSIS
LYSIS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
POLYMERIZATION
POLYMERS
SOLVOLYSIS
STABILITY
THERMODYNAMIC PROPERTIES