http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108939950-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-025 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2018-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108939950-B |
| titleOfInvention | Preparation method of aromatic polyamide film |
| abstract | The invention relates to a preparation method of an aromatic polyamide membrane, belonging to the field of membrane separation and the field of new materials. The preparation method of the aromatic polyamide membrane comprises the steps of preparing a membrane casting solution and preparing the aromatic polyamide membrane, wherein the preparation method of the membrane casting solution comprises the following steps: mixing inorganic salt and an organic solvent to obtain a mixed solvent, then adding aromatic polyamide into the mixed solvent, and dissolving and stirring uniformly to obtain a polymer solution; and (3) dropwise adding a cosolvent into the polymer solution by adopting a cloud point titration method, determining the upper limit of the addition amount of the cosolvent in the polymer solution, calculating the mass fraction of the cosolvent in the casting solution when the proximity ratio alpha is 0.01-0.99, and configuring the casting solution according to the calculated value. The preparation method provided by the invention has the advantages of simple process and easy operation, and the membrane regulated and controlled by the pore structure has good permeation and separation performance and good application prospect in the fields of membrane separation and water treatment. |
| priorityDate | 2018-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.