Sealing materials permeation resistant

Rubber compositions (especially polychloroprene rubber) with boron nitride fillers serve as sealing materials, adhesives, gas-permeation-resistant materials for accumulator casing, and for pressure-sensitive conductive rubber composites [91 to 96]. [Pg.113]

Hydrogenated nitrile mbbers were evaluated for use in seals and hoses for automotive air conditioning systems. Studies were made of the resistance of these materials to hydrofluorocarbon refrigerants and polyalkylene glycol and mineral oil based lubricants, and permeation resistance, explosive decompression and low temperature performance characteristics were investigated. Designed experiments were undertaken to study the effect of compounding techniques on permeation and explosive decompression. 4 refs. [Pg.64]

Corrosion resistance is essential to the operation of RO systems constructed of metallic materials. This is because localized corrosion cannot be tolerated at the critical pressure seals which separate feedwater, brine, and the product water (permeate). Secondly, there is little tolerance for the generation of corrosion products, which can affect RO membrane performance. [Pg.572]