http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107224882-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-10 |
| filingDate | 2017-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107224882-B |
| titleOfInvention | Preparation method of braided tube enhanced polyvinylidene fluoride hollow fiber membrane |
| abstract | The invention discloses a preparation method of a braided tube reinforced polyvinylidene fluoride hollow fiber membrane, which comprises the following steps: (1) preparing S-twisted multi-filament yarns by polyvinylidene fluoride filaments and PET filaments in an S-twisted mode, twisting the S-twisted multi-filament yarns into bundles, and then weaving the bundles into a hollow braided tube, wherein the polyvinylidene fluoride filaments exposed on the surface of the hollow braided tube are in a punctiform and uniform distribution; (2) dissolving polyvinylidene fluoride and an additive in a solvent to prepare a membrane casting solution; (3) extruding the hollow braided tube and the membrane casting solution through a spinning nozzle, coating the membrane casting solution on the surface of the hollow braided tube to obtain membrane wires, and then carrying out phase conversion on the membrane wires in a coagulating bath to obtain the braided tube reinforced polyvinylidene fluoride hollow fiber membrane; the improved polyvinylidene fluoride hollow fiber membrane has the advantages of excellent mechanical property, high peel strength, good water flux and strong hydrophilicity. |
| priorityDate | 2017-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.