http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112426894-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 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/B01D67-0079 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2021-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112426894-B |
| titleOfInvention | Preparation method of polyamide composite reverse osmosis membrane and obtained reverse osmosis membrane |
| abstract | The invention discloses a preparation method of a polyamide composite reverse osmosis membrane, which is characterized in that a carbon quantum nano porous layer crosslinked by a flexible chain is arranged on a polysulfone supporting layer to serve as an interfacial polymerization regulation layer, and finally, a functional layer is prepared. The interface polymerization regulation and control layer is formed by crosslinking and fixing aminated carbon quantum by a flexible chain crosslinking agent, can regulate and control the interface polymerization process and is used as an effective water channel after film forming; in the subsequent interfacial polymerization process, the m-phenylenediamine monomer solution adsorbed by the layer and the carbon-based amination quantum dot form a hydrogen bond, and the contraction-extension action of the flexible chain segment plays a role in regulating and controlling the diffusion and transmission of the m-phenylenediamine monomer, so that the formed aromatic polyamide layer is ultrathin and compact, and the water flux and the salt rejection rate of the membrane material are improved simultaneously. The invention also discloses a polyamide composite reverse osmosis membrane which is obtained by adopting the preparation method, has the characteristics of simple structure, large water flux and high desalination rate, and is suitable for industrial production. |
| priorityDate | 2021-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.