发明名称 |
Water-treatment separating membrane of high flux having good chlorine resistance and method of manufacturing the same |
摘要 |
A method of manufacturing a water-treatment separating membrane includes forming an aqueous amine solution layer on a porous support, and forming a polyamide active layer by dropping droplets of an organic solution including an acyl halide compound on the aqueous amine solution layer. A water-treatment separating membrane manufactured by the same also is provided. |
申请公布号 |
US9211507(B2) |
申请公布日期 |
2015.12.15 |
申请号 |
US201414260647 |
申请日期 |
2014.04.24 |
申请人 |
LG CHEM, LTD. |
发明人 |
Kim Jae-Hong;Ko Young-Hoon;Shin Chong-Kyu;Lee Phill |
分类号 |
B01D39/00;B01D63/00;B01D61/00;B05D5/00;B01D71/56;B01D67/00;B01D69/12;B01D69/02 |
主分类号 |
B01D39/00 |
代理机构 |
Dentons US LLP |
代理人 |
Dentons US LLP |
主权项 |
1. A method of manufacturing a water-treatment separating membrane, the method comprising:
forming an aqueous amine solution layer on a porous support; and forming a polyamide active layer by dropping a droplet of an organic solution comprising an acyl halide compound on the aqueous amine solution layer, wherein a volume of the organic solution per droplet is from 0.001 ml to 5 ml, wherein at least one curve pattern formed by connecting two or more arcs in at least a partial area of the polyamide active layer is revealed when the polyamide active layer is dyed using a 0.5% aqueous solution of Rhodamine B for showing the curve pattern, and wherein an arithmetic mean roughness (Ra) of a surface of the polyamide active layer is from 60 nm to 100 nm. |
地址 |
Seoul KR |