| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b992e5f7a0ebce9c8b6dff49206f2764 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44
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
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 |
| filingDate |
2020-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41dfc4fb240b59dd65093e6db1be71a9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a6aaf5106a6f2b2b8577e29054ac7aa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5469884db7fe02565f4c042c59f4befb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e35d3896d6a5c9a9a1440a813e5c407
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea1cd6d9dca31da1b5502f823b0d73e6 |
| publicationDate |
2022-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114053885-A |
| titleOfInvention |
High-pressure-resistant polyamide membrane and preparation method thereof |
| abstract |
The invention provides a high pressure resistant polyamide membrane and a preparation method thereof, wherein the preparation method comprises the following steps: (1) mixing polyaspartic acid or salt thereof and m-phenylenediamine with water to prepare an aqueous solution, coating the aqueous solution on the surface of a basement membrane, and then separating and removing liquid on the surface of the basement membrane; (2) preparing oil phase solution of trimesoyl chloride, coating the oil phase solution on the surface of the basement membrane treated in the step (1), carrying out interfacial polymerization reaction, and then separating and removing the liquid on the surface of the membrane to obtain the high-pressure-resistant polyamide membrane. The method has simple process and easy operation, and the obtained polyamide membrane not only has higher salt rejection rate and boron removal rate, but also has obvious high pressure resistance. |
| priorityDate |
2020-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |