Compatibility of Seven Biologically Derivable Diesel Blendstocks (1-Octanol, 2-Nonanone, Hexyl Hexanoate, n-Undecane, Di-isobutylene, Biodiesel and Renewable Diesel) with Fuel System Plastics
The compatibility of seven bioderivable diesel blendstocks with 21 plastic materials common to fuel storage, dispensing, and delivery systems was evaluated though volume and hardness measurements. The blendstocks included one alcohol (1-octanol), one acid ester (hexyl hexanoate), one ketone (2-nonanone), dibutoxymethane, and three akanes (n-undecane, biodiesel, and renewable diesel). Each blendstock was blended with diesel in concentrations of 0, 10, 20, and 30 wt %. The plastics included resins, nylons, acetals, high density polyethylene, polypropylene, polyetheretherketone, polyphthalamides polyphenylene sulfide, polyethylene terephthalate, polytetrafluoroethylene, ethylene-tetrafluoroethylene, polyvinylidene fluoride, polyetherimide, polyphthalamides, Polyacrylamide, and polybutylene terephthalate. Specimens of each plastic material were immersed in the test fuels for a period of 16 weeks and measured for volume and hardness.