http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111408277-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0093 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-009 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 | 2020-03-11^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111408277-B |
| titleOfInvention | Rapid crosslinking preparation method of super-hydrophilic polyvinylidene fluoride microporous membrane |
| abstract | The invention discloses a rapid crosslinking preparation method of a super-hydrophilic polyvinylidene fluoride microporous membrane, which relates to the field of hydrophilic modification of a polymer separation membrane and comprises the following preparation steps: (1) preparing a polyvinyl alcohol aqueous solution and a siloxane solution; (2) slowly adding a siloxane solution into a polyvinyl alcohol aqueous solution to obtain a polyvinylidene fluoride microporous membrane modified solution; (3) adding an initiator into a polyvinylidene fluoride microporous membrane modification solution to obtain a modified initiation solution; (4) completely soaking the polyvinylidene fluoride microporous membrane into the modified priming solution to prepare a wet modified polyvinylidene fluoride microporous membrane; (5) placing the wet modified polyvinylidene fluoride microporous membrane under ultraviolet irradiation for crosslinking; (6) and washing and drying to obtain the super-hydrophilic polyvinylidene fluoride microporous membrane. The invention realizes the super-hydrophilic modification of the polyvinylidene fluoride microporous membrane, and has excellent super-hydrophilicity and long-acting acid, alkali and oxidant resistance cleaning stability; and the production period of the membrane product is shortened, and the membrane has good industrial application prospect. |
| priorityDate | 2020-03-11^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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