http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112791596-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0079 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2020-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112791596-B |
| titleOfInvention | A kind of preparation method of polyvinylidene fluoride hydrophilic membrane with both acid, alkali and ethanol resistance |
| abstract | The invention discloses a preparation method of a polyvinylidene fluoride hydrophilic membrane which is resistant to acid, alkali and ethanol. The method comprises the following steps: (1) dissolving PVDF and TBAC in DMF, firstly heating and stirring for 3-4h, and then not heating and stirring for 18 ‑20h, obtain PVDF solution, electrospin into PVDF nanomembrane; (2) add PVP and KH560 into deionized water according to a certain amount and stir to prepare a hydrophilic finishing agent; (3) soak the PVDF nanomembrane in ethanol After being placed in a hydrophilic finishing agent, a polyvinylidene fluoride hydrophilic film is obtained after drying. The polyvinylidene fluoride membrane obtained by the invention has excellent hydrophilic effect and good resistance to acid (3-4% solution of sodium hypochlorite), alkali (0.4% NaOH solution) and ethanol (absolute ethanol), and can be used for liquid filtration, water filtration, etc. filtering, etc. |
| priorityDate | 2020-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.