http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109224886-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2018-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109224886-B |
| titleOfInvention | Polytetrafluoroethylene tubular microporous membrane and preparation method thereof |
| abstract | The invention disclosesA tubular microporous teflon film is prepared through mixing dispersed teflon resin with solvent oil, ageing, blanking, extruding, deoiling, stretching and sinter shaping, and features hollow tubular structure with internal diameter of 30-200mm, wall thickness less than 2% of internal diameter, and multiple micropores distributed on its wall, pore diameter of 0.3-1.0 microns, porosity greater than or equal to 80%, and tensile strength 120N/mm 2 The above properties and the like; the lower wall thickness is beneficial to improving the membrane separation performance; the inner diameter is far larger than that of the hollow fiber membrane, and the microporous membrane has higher porosity, greatly expands the application range of the microporous membrane, and effectively has the advantages of both the tube and the filtering membrane; can be widely applied to the fields of sewage filtration, oil-water separation, membrane distillation and the like; the preparation method has the advantages of simple process, no environmental pollution, easy operation, suitability for industrial production, strong practicability and wide applicability. |
| priorityDate | 2018-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.