http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110538581-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2019-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110538581-B |
| titleOfInvention | Polyamide composite reverse osmosis membrane and preparation method thereof |
| abstract | The invention provides a polyamide composite reverse osmosis membrane which comprises a supporting layer, wherein a crosslinked polyamide layer is arranged on the supporting layer, and a hydrophilic polymer is arranged on the crosslinked polyamide layer by a grafting method. The polyamide composite reverse osmosis membrane is characterized in that a hydrophilic polymer is arranged on a crosslinked polyamide layer by a grafting method, so that the composite reverse osmosis membrane which is hydrophilic, high in flux and strong in pollution resistance is formed; hydrophilic polymer molecules in the hydrophilic polymer are connected with polyamide molecules in the cross-linked polyamide layer through covalent bonds, and the membranes are good in stability and not easy to dissolve or fall off. The invention also discloses a preparation method of the polyamide composite reverse osmosis membrane, which has the advantages of simple manufacturing process steps, easy control of process parameters and suitability for industrial production. |
| priorityDate | 2019-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.