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The Permeation Effect of Ethanol-containing Fuels on Fluoropolymers
Technical Paper
2007-01-2035
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The barrier properties of fluoropolymers exposed to ethanol-containing fuel blends were investigated using the permeation cup, weight loss method. More specifically, permeation constant data for Fuel C, CE10, CE15, CE22, CE50, CE85 and ethanol through fluoropolymers; THV, PVDF and FEP were measured at 20, 40 and 60°C. Additional techniques such as the measurement of vapor pressure of fuel-ethanol blends using a permeation cup equipped with a pressure transducer are discussed. Vapor pressures for fuel blends were also derived using equations of state such as UNIQUAC, NRTL and Peng-Robinson models. The weight changes and volume changes of fluoropolymers in ethanol-containing fuels were measured. Finally, the crystallinity index and glass transition temperature of fluoropolymers were also measured.
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Citation
Ando, N., Harrison, P., Fukushi, T., Duchesne, D. et al., "The Permeation Effect of Ethanol-containing Fuels on Fluoropolymers," SAE Technical Paper 2007-01-2035, 2007, https://doi.org/10.4271/2007-01-2035.Also In
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