| 发明名称 |
CHITOSAN ULTRA-THIN FILM COMPOSITE NANOFILTRATION MEMBRANES |
| 摘要 |
A composite nanofiltration membrane that includes a support layer having a thickness of 100 nm to 10 mm and a cross-linked chitosan thin layer having a thickness of 10 to 1000 nm, in which the support layer is formed of a polymer; the cross-linked chitosan thin layer, disposed only on the top surface of the support layer, contains links each formed from a cross-linking agent, which is trimesoyl chloride, iso-phthaloyl dichloride, sebacoyl chloride, or a combination thereof; and the membrane has a mean pore size less than 1 nm. Also disclosed are a method for preparing such a composite nanofiltration membrane and a composite nanofiltration membrane prepared according to the method. |
| 申请公布号 |
US2016207007(A1) |
申请公布日期 |
2016.07.21 |
| 申请号 |
US201614996478 |
申请日期 |
2016.01.15 |
| 申请人 |
National University of Singapore |
发明人 |
Zhang Sui;Peh Ming Hui;Chung Tai-Shung |
| 分类号 |
B01D71/08;B01D69/12;B01D69/02;B01D61/02 |
主分类号 |
B01D71/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A composite nanofiltration membrane comprising:
a support layer having a thickness of 100 nm to 10 mm, and a cross-linked chitosan thin layer having a thickness of 10 to 1000 nm and disposed only on a top surface of the support layer,wherein
the support layer is formed of a polymer; the cross-linked chitosan thin layer contains links each formed from a cross-linking agent; and the composite nanofiltration membrane has a mean pore size less than 1 nm. |
| 地址 |
Singapore SG |
