Improved Ethyl Cellulose Membranes for Reverse Osmosis Application.

摘要

Ethyl cellulose, a very chemically stable polymer has been studied for the formation of asymmetric membranes for reverse osmosis. A solution prediction model has been developed which allows the formation of asymmetric membranes from a larger number of solvent combinations. The data from both flat sheet and tubular asymmetric ethyl cellulose membranes reveal an outstanding stability to alkaline solutions,good rejections for most solutes but relatively low flux. The compaction of these membranes is of the same degree as cellulose acetate. (Modified author abstract)