Browse Publications Technical Papers 2007-01-2035
2007-07-23

The Permeation Effect of Ethanol-containing Fuels on Fluoropolymers 2007-01-2035

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Impact of New Evaporative Emission Requirements (Euro III/IV) on Gasoline Fuel Systems

2007-01-2661

View Details

TECHNICAL PAPER

Effects of Low-Purge Vehicle Applications and Ethanol-Containing Fuels on Evaporative Emissions Canister Performance

2007-01-1929

View Details

TECHNICAL PAPER

Effects of Gasoline Vapour Pressure and Ethanol Content on Evaporative Emissions from Modern European Cars

2007-01-1928

View Details

X