http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108905636-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-46 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0002 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2018-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108905636-B |
| titleOfInvention | Polytetrafluoroethylene composite microporous membrane and preparation method and preparation system thereof |
| abstract | The invention provides a polytetrafluoroethylene composite microporous membrane and a preparation method and a preparation system thereof. The preparation method of the polytetrafluoroethylene composite microporous membrane comprises the following steps: dipping a non-woven fabric in a film forming agent containing polyvinylidene fluoride and a solvent; compounding the impregnated non-woven fabric with a polytetrafluoroethylene microporous membrane to obtain a compound; removing the solvent in the compound to obtain a composite membrane; carrying out heat treatment on the composite membrane to obtain a polytetrafluoroethylene composite microporous membrane; wherein the solvent comprises a polar high boiling point solvent and a polar low boiling point solvent, and the surface tension of the solvent is less than or equal to 27.00 xL 0 ‑5 N/cm. The polytetrafluoroethylene composite microporous membrane prepared by the method has the characteristics of high flux, high uniformity, high composite strength, no residue and the like, and has wide application prospect. |
| priorityDate | 2018-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.