The Effect of Fuel Components and Standard Test Fuels on the Mechanical Properties and Glass Transition Temperatures of Polymers used in Multi-Layer Fuel Line Tubing
Restricted accessResearch articleFirst published online December, 2000
The Effect of Fuel Components and Standard Test Fuels on the Mechanical Properties and Glass Transition Temperatures of Polymers used in Multi-Layer Fuel Line Tubing
With the advent of more stringent legislation for fuel and fuel vapor emissions from vehicles, it has been necessary to introduce a barrier polymer into the fuel line as a means of reducing emissions. This paper investigates the changes in mechanical properties, such as tensile modulus, of a range of plasticized nylons, tie layer polymer systems and fluoropolymers which were immersed in various mixtures of fuel components and standard fuels at a temperature of 250C. The percentage mass uptake and extent of swelling were also determined in addition to changes in glass transition temperature up to a period of 31 weeks.
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