Phosphonitrilic Fluoroelastomer Coated Fabrics for Collapsible Fuel Storage Tanks

Abstract : This report describes the preparation of fuel resistant coated fabric materials that are serviceable at temperatures as low as -70 F. The coated fabric materials were made from a phosphonitrilic fluoroelastomer compound coated on nylon fabric. Efforts were directed toward attainment of calenderable compounds and test evaluations of the coated fabric. High filler loaded materials proved to be better processable materials. These showed good diffusion rates with test fluids (TT-S-735, Type II and Fuel S). Even better diffusion rates were seen with Arctic diesel fuel. The low temperature flexibility of the vulcanizates and coated fabric was promising for PNF-200 compounds. The seam adhesion strength and the fabric-to-rubber adhesion and need to be improved before utilization of this material in tank constructions. (Author)