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US 11,883,785 B2Granted
Reverse osmosis membrane, manufacturing method therefor, and water treatment module
AssigneeLG Chem, Ltd.
InventorsAyoung Lee, Yun Seok Choe, Chong Kyu Shin, Phill Lee
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Abstract
Provided is a reverse osmosis membrane comprising: a support layer comprising a support and a polysulfone layer; and an active layer, wherein a compression modulus is from 20 MPa to 40 MPa, to a method for manufacturing the same, and a water-treatment module.
Claims9
A reverse osmosis membrane, comprising:
- a support layer comprising a support and a polysulfone layer, wherein the support has a thickness of 93 μm to 95 μm, and 1 g/m2 to 5 g/m2 of polysulfone from the polysulfone layer is impregnated into the support, and the polysulfone layer has a thickness of 60 μm to 80 μm;
- and
- an active layer,
- wherein a compression modulus of the reverse osmosis membrane
- is from 20 MPa to 40 MPa, wherein a rate of defect occurrence in the reverse osmosis membrane is in a range from 0% to 5%, and wherein the support comprises a non-woven fabric.
2 more elements
Dependencies are inferred from the claim text.