公开(公告)号：US20160303524A1

公开(公告)日：2016-10-20

申请号：US15064301

申请日：2016-03-08

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Saira BANO ,  Asif MAHMOOD ,  Seong-Joong KIM ,  Kew Ho LEE

IPC: B01D71/82 ,  B01D71/08 ,  B01D69/12 ,  B01D61/02 ,  B01D67/00 ,  B01D63/10 ,  C02F1/44 ,  B01D71/42

CPC classification number: B01D69/125 ,  B01D61/027 ,  B01D69/12 ,  B01D71/021 ,  B01D71/08 ,  B01D71/42 ,  B01D2323/30 ,  C02F1/442

Abstract: Provided is a polyacrylonitrile/chitosan composite nanofiltration membrane, including: a polyacrylonitrile support; and a chitosan coating layer modified with graphene oxide, or a polyacrylonitrile/chitosan composite nanofiltration membrane, including: a polyacrylonitrile support modified with graphene oxide; and a chitosan coating layer or chitosan coating layer modified with graphene oxide. The polyacrylonitrile/chitosan composite nanofiltration membrane containing graphene oxide shows high permeability and a high salt rejection ratio, has excellent anti-fouling property and chlorine resistance, and thus may be manufactured in the form of a spirally wound type membrane module applied to a water treatment system so that it may be utilized for an actual nanofiltration separation process.

Abstract translation: 提供了一种聚丙烯腈/壳聚糖复合纳滤膜，包括：聚丙烯腈载体; 和用氧化石墨烯改性的壳聚糖涂层，或聚丙烯腈/壳聚糖复合纳滤膜，包括：用石墨烯氧化物改性的聚丙烯腈载体; 和用氧化石墨烯改性的壳聚糖涂层或壳聚糖涂层。 含有石墨烯氧化物的聚丙烯腈/壳聚糖复合纳滤膜显示出高渗透性和高耐盐性比，具有优异的防污性和耐氯性，因此可以以螺旋卷绕型膜组合物的形式制造，应用于水处理 系统，使其可用于实际的纳滤过程分离过程。

公开(公告)号：US20160339395A1

公开(公告)日：2016-11-24

申请号：US15064317

申请日：2016-03-08

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Saira BANO ,  Asif MAHMOOD ,  Seong-Joong KIM ,  Kew Ho LEE

IPC: B01D69/12 ,  B01D61/02 ,  C02F1/44 ,  B01D67/00 ,  B01D71/08 ,  B01D71/38 ,  B01D63/10 ,  B01D61/08

CPC classification number: B01D69/125 ,  B01D61/027 ,  B01D67/0006 ,  B01D71/08 ,  B01D71/38 ,  B01D2323/30 ,  C02F1/442

Abstract: Provided is a double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane, including: a porous polymer support; and a sodium alginate/polyvinyl alcohol blend coating layer formed on the porous polymer support and having a first crosslinking structure formed by complexation with divalent metal ions and a second crosslinking structure formed by acetalization with aldehyde groups. The double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane disclosed herein not only shows excellent chlorine resistance but also has improved water permeation flux and salt rejection ratio, and thus may be manufactured in the form of a spirally wound type membrane module and applied to a water treatment system in which it may be utilized for an actual nanofiltration separation process.

Abstract translation: 提供双交联海藻酸钠/聚乙烯醇复合纳滤膜，包括：多孔聚合物载体; 和形成在多孔聚合物载体上的藻酸钠/聚乙烯醇混合物涂层，并且具有通过与二价金属离子络合形成的第一交联结构和通过醛基缩醛形成的第二交联结构。 本文公开的双交联海藻酸钠/聚乙烯醇复合纳滤膜不仅显示出优异的耐氯性，而且还具有改善的水渗透通量和抑盐率，因此可以以螺旋卷绕型膜组件的形式制造并应用于 水处理系统，其可用于实际的纳滤过程分离过程。

公开(公告)号：US20160303518A1

公开(公告)日：2016-10-20

申请号：US15064280

申请日：2016-03-08

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Saira BANO ,  Asif MAHMOOD ,  Seong-Joong Kim ,  Kew Ho Lee

IPC: B01D71/42 ,  B01D69/12 ,  B01D67/00 ,  B01D61/14

Abstract: Provided is a nanocomposite ultrafiltration membrane including a hydrophobic polymer matrix impregnated with graphene oxide or reduced graphene oxide. The PAN/GO nanocomposite ultrafiltration membrane has improved mechanical properties, high permeability and a high salt rejection ratio, and excellent anti-fouling property and durability. Thus, the nanocomposite ultrafiltration membrane may be manufactured in the form of a membrane module applied to a water treatment system so that it may be utilized in an actual ultrafiltration separation process.

Abstract translation: 提供了一种纳米复合超滤膜，其包括浸渍有氧化石墨烯或氧化还原型石墨烯的疏水性聚合物基体。 PAN / GO纳米复合超滤膜具有改善的机械性能，高渗透性和高脱盐率，优异的防污性能和耐久性。 因此，纳米复合超滤膜可以以应用于水处理系统的膜组件的形式制造，从而可以在实际的超滤分离过程中使用。