http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112892235-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-48 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-442 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-00 |
| filingDate | 2021-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112892235-B |
| titleOfInvention | A preparation method of chlorine-resistant and antibacterial low-pressure polyamide composite nanofiltration membrane |
| abstract | The invention belongs to the technical field of water treatment membranes, and discloses a preparation method of a chlorine-resistant and antibacterial low-pressure polyamide composite nanofiltration membrane. The aqueous phase solution and the organic phase solution are respectively prepared, and the ultrafiltration support membrane is immersed in the aqueous phase solution to maintain After a certain period of time, remove the residual aqueous phase solution, and then immerse it in the organic phase solution for polymerization reaction, remove the residual organic phase solution, form a nascent polyamide composite nanofiltration membrane, and then the nascent polyamide composite nanofiltration membrane The membrane is immersed in the polypeptide amino acid aqueous solution for surface grafting treatment, and the treated polyamide composite nanofiltration membrane is washed with water to obtain the final product. The invention significantly improves the separation selectivity, chlorine resistance and antibacterial properties of the polyamide composite nanofiltration membrane; at the same time, the preparation process is simple, the operability is strong, the process conditions are easy to control, and it has broad industrial application prospects. |
| priorityDate | 2021-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.