Reverse osmosis membrane and manufacturing method therefor
AssigneeSK Innovation Co., Ltd.
InventorsMin Sang PARK, Sang Hyun PARK
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Abstract
The present invention relates to a reverse osmosis membrane using a polyolefin-based microporous membrane and a production method therefor. The present invention relates to a method for forming a polyamide layer by interfacial polymerization on a polyolefin-based microporous membrane without separate hydrophilization treatment, wherein reaction solutions are fed in a specified order upon the interfacial polymerization to effectively form the polyamide layer on a polyolefin-based microporous membrane having hydrophobicity.
Claims10
A production method for a reverse osmosis membrane comprising:
- contacting a polyolefin-based microporous membrane with a polyfunctional acyl halide organic solution, and then contacting the polyolefin-based microporous membrane with a polyfunctional amine aqueous solution to form a polyamide active layer.
A reverse osmosis membrane comprising:
- a polyamide active layer formed on a polyolefin-based microporous membrane,
- wherein the polyolefin-based microporous membrane has a water contact angle of more than 90 degrees.
Dependencies are inferred from the claim text.