http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112774466-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20111e0831a3fb7b905955c9df2d3f04 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 |
| classificationCPCInventive | 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/B01D67-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36 |
| classificationIPCInventive | 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/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-36 |
| filingDate | 2020-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04001b9ae2d70b36d1fae99e6f933cad |
| publicationDate | 2021-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112774466-A |
| titleOfInvention | A kind of high-flux and high-strength polytetrafluoroethylene hollow fiber membrane and preparation method thereof |
| abstract | The invention discloses a high-flux and high-strength polytetrafluoroethylene hollow fiber membrane and a preparation method thereof. The preparation method includes the following steps: mixing polytetrafluoroethylene dispersion resin, glass fiber, nano-silica and silicone oil uniformly , and stand at 50-70°C for 1-2 hours to obtain a mixed material; press the mixed material into a cylindrical blank, and then extrude the blank to obtain a polytetrafluoroethylene hollow tube; put the polytetrafluoroethylene in The empty tube is stretched 1.2 to 1.8 times at 200 to 250 °C, then stretched 1 to 2 times at 290 to 360 °C, and then stretched 2 to 4 times at 370 to 390 °C, and then stretched at 350 to 400 °C. Sintering and molding at ℃; placing the sintered polytetrafluoroethylene hollow tube in a polytetrafluoroethylene emulsion for soaking and drying, and then sintering again to obtain the polytetrafluoroethylene hollow fiber membrane; the preparation method The prepared polytetrafluoroethylene hollow cellulose membrane has high porosity and membrane flux, and at the same time can improve the mechanical strength of the polytetrafluoroethylene cellulose membrane. |
| priorityDate | 2020-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.