发明授权
US4909943A Rejection enhancing coatings for reverse osmosis membranes 失效
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Rejection enhancing coatings for reverse osmosis membranes
摘要:
Reverse osmosis membranes treated with polymers bearing carboxylic acid groups and optionally pendant hydroxyl or amide moieties display enhanced salt rejection and/or increased water flux. This treatment is particularly useful for improving the membrane characteristics of cellulose acetate and polyamide membranes.
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