Journal Published Online: 01 July 1983
Volume 11, Issue 4

A Basis for Predicting Longtime Behavior from Short-Time Tests of Geothermal Sealants



The failure of sealants aging in geothermal downwell atmospheres is usually a result of the cumulative effects of both the forming of cross-links and their destruction in the rubbery sealant materials. Methods are discussed to distinguish between these mechanisms using measurement of stress relaxation and permanent set. Some data on oxidative aging of natural rubber are recalled as a paradigm of chemically degrading elastomers and some simple scaling laws are described which (when they can be established) are useful for predicting longtime behavior from short-time tests.

Author Information

Kearsley, EA
Rheology Research, Gaithersburg, MD
Pages: 5
Price: $25.00
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Stock #: JTE10293J
ISSN: 0090-3973
DOI: 10.1520/JTE10293J