Blended membranes for water vapor transport and methods for preparing same专利检索- 过滤材料专利检索查询-专利查询网

Blended membranes for water vapor transport and methods for preparing same
申请号	US15319483	申请日	2015-06-16	公开(公告)号	US10139116B2	公开(公告)日	2018-11-27
申请人	CORE Energy Recovery Solutions Inc.;			发明人	Ryan Nicholas Huizing; Hao Chen; Frankie Kin Bong Wong;
摘要	Water vapor transport membranes for ERV and other water vapor transport applications are provided. The membranes include a substrate and an air impermeable selective layer coated on the substrate, the selective layer including a cellulose derivative and a sulfonated polyaryletherketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the selective layer includes s PEEK and CA in an s PEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3. Methods for making such membranes are provided. The methods include applying a coating solution/dispersion to a substrate and allowing the coating solution/dispersion to dry to form an air impermeable selective layer on the substrate, the coating solution/dispersion including a cellulose derivative and a sulfonated polyarylether ketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the coating solution/dispersion includes s PEEK and CA in an sPEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3.
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