Antibacterial and antifouling polymeric separation membrane and preparation method thereof
US10016729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Nov 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention provides a polymeric separation membrane that has excellent durable antibacterial effect and stain resistance, and a preparation method thereof. The polymeric separation membrane can be widely applied for water treatment, which belongs to the field of water treatment and membrane separation science and technology. The polymeric separation membrane containing quaternary ammonium salt is prepared by the immersion precipitation phase inversion method, using quaternary ammonium salt mixed with polymer and additives. This modification method effectively improves the antibacterial and antifouling ability of the polymeric separation membrane prolongs the service life of membranes and significantly inhibits the reproduction of bacterial and microbial. The preparation method has the advantages of simple process, easy operation, easy for promotion, and also avoids expensive equipment. The polymeric separation membrane has great antibacterial ability and stain resistance, therefore, it has potential application in the field of water treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.