http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102824859-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-24 |
| filingDate | 2012-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ded9d29686319f2dc3598df4ccb18532 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5c00f82229a14c76ebcde65b785aff4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8188dea361c19b5a6119fc27e5653afc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48c56abcc77ed89fcd0a74fa9b4a72de |
| publicationDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102824859-B |
| titleOfInvention | Method for preparing hollow fiber nanofiltration membrane by using thermally induced phase separation/interface cross linking synchronization method |
| abstract | The invention discloses a method for preparing a hollow fiber nanofiltration membrane by using a thermally induced phase separation/interface cross linking synchronization method; the preparation method comprises the following steps: 1) mixing polymer, a diluting agent and a cross linking agent to form a homogeneous phase membrane casting solution; 2) extruding the membrane casting solution and core solution, or the membrane casting solution and nitrogen by a ring-shaped spinning head, then conducting the thermally induced phase separation in a cooling bath so as to obtain a hollow primary membrane; 3) soaking the hollow primary membrane in extracting solution containing cross linking pre-polymer, conducting the interface cross linking at the same time with removing diluting agent, thereby obtaining a hollow fiber nanofiltration membrane. According to the method provided by the invention, the preparations of holing and separation layer is finished, and the difficulty point of high require of bonding property between a separation layer and a supporting layer of a combining method in the prior art can be avoided, and meanwhile the thickness and the evenness of the separation layer are easy to control; the simple new method for preparing the hollow fiber nanofiltration membrane with excellent property by using the thermally induced phase separation/interface cross linking synchronization method is provided; and the prepared nanofiltration membrane is little in defect, high in stability and high in controllability. |
| priorityDate | 2012-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.