Effects of Long-Term Flex-Fuel Exposure on Fluorocarbon Elastomers 900118
Long-term exposure of typical fluorocarbon elastomers in methanol fuel mixtures indicates three very important results for the automotive fuel-system design engineer:
(1)
Fluorocarbon elastomers reach an equilibrium in those solutions after a short exposure, usually within 48 hours to 1 week of initial immersion, depending upon the fuel mixture and the test temperature.
(2)
The low-temperature flexibility (as measured by TR-10) of fluorocarbon elastomers is improved by a short immersion in these fuels.
(3)
“High fluorine” (greater than 66% F) fluoroelastomers are preferable over the standard grades for their superior resistance to methanol/gasoline blended fuels over an extended term.
Citation: Balzer, J. and Sohlo, A., "Effects of Long-Term Flex-Fuel Exposure on Fluorocarbon Elastomers," SAE Technical Paper 900118, 1990, https://doi.org/10.4271/900118. Download Citation
Author(s):
James R. Balzer, Allen M. Sohlo
Pages: 44
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions Journal of Passenger Cars-V99-6
Related Topics:
Elastomers
Methanol
Gasoline
Drag
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