http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114028958-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ad7bbbf80252e4e5253daca96b87684 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-441 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 |
| filingDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d08e2b44ceee225515081d7a5040a16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b3e7733ccbf3dc2069b16d666014525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_586615e3772408bb8ebe41900de99bd9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac6a14164d9b67a71693397cd561b679 |
| publicationDate | 2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114028958-A |
| titleOfInvention | Preparation method for improving desalination rate of reverse osmosis membrane |
| abstract | A preparation method for improving the desalination rate of a reverse osmosis membrane. Provides a preparation method for improving the desalination rate of the reverse osmosis membrane, which has simple preparation process and stable desalination performance. The method comprises the following steps: s1: preparing a water phase solution and an oil phase solution for later use; s2: preparing a membrane casting solution, coating the membrane casting solution on non-woven fabric, and preparing a porous supporting base membrane by a phase inversion method; s3: dipping the non-woven fabric side of the porous support base membrane into the water phase solution, and simultaneously dipping the polyether sulfone layer side of the porous support base membrane into the oil phase solution; s4: and (3) dipping for 10-60 s, taking out, drying in a 55 ℃ oven, obtaining a polyamide layer on the polyether sulfone layer side, and forming the composite reverse osmosis membrane by the polyamide layer and the porous support base membrane. The invention avoids the inevitable defect of the drying process on the membrane surface after the water phase coating, and improves the desalting performance of the reverse osmosis membrane. |
| priorityDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.