http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105013345-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2014-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105013345-B |
| titleOfInvention | A kind of preparation method of polytetrafluoroethylene (PTFE) super-hydrophobic film |
| abstract | Sintered the invention provides a kind of preparation method of poly tetrafluoroethylene, including into fine carrier system fibre, it is characterised in that：Sintering is using temperature programmed control zonal cooling sintering, under flowing atmosphere, and with 3~10 DEG C/min speed from room temperature to 120 DEG C~200 DEG C, 30~120min is incubated at 120 DEG C~200 DEG C；360 DEG C~400 DEG C are warming up to from 120 DEG C~200 DEG C with 2~8 DEG C/min speed, 5~120min is incubated at 360 DEG C~400 DEG C；Cooling treatment is carried out after sintering, it is described to be cooled under flowing atmosphere, 150~200 DEG C are cooled to from 360 DEG C~400 DEG C with 3~15 DEG C/min speed, 30~120min is incubated at 150~200 DEG C, then natural cooling.The present invention has been made with beading superfine fibre poly tetrafluoroethylene, forms the hydrophobic surface with multistage coarse structure together；Surface water contact angle >=150 °, porosity is up to more than 80%；And the givey problem of fiber in polytetrafluoroethylene (PTFE) precursor film sintering is solved, fibre morphology and surface are intact, and intensity and toughness also improve a lot, and can bear certain vacuum pressure. |
| priorityDate | 2014-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.