http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107970782-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2017-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107970782-B |
| titleOfInvention | Polymer film with high interconnected pore structure and preparation method thereof |
| abstract | A polymer film having a high interconnected pore structure and a method for preparing the same, the method comprising: stirring the dried and dehumidified crystal or semi-crystal polymer, additive and organic solvent at constant temperature until the mixture is uniformly mixed, standing at constant temperature for defoaming, and forming uniform membrane casting solution; scraping the obtained membrane casting solution into a flat membrane or spinning into a hollow fiber membrane, and heating the flat membrane at a constant temperature of 40-80 ℃ for a period of time, or subjecting the hollow fiber membrane to an air bath with a certain length and a temperature of 40-80 ℃ so as to incompletely evaporate a solvent; and immersing the obtained primary membrane in a coagulating bath with water as a main body, and airing after soaking for a period of time. The prepared membrane has a highly-communicated surface and section structure, more mass transfer channels can be provided in the membrane process, and higher water yield flux is realized; the film has no obvious macroporous layer, has higher mechanical strength, ensures longer film service life, and has wide application prospect in the field of film preparation and application. |
| priorityDate | 2017-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.