http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110735230-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F8-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D04H1-728 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D04H1-4382 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D46-543 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D39-1623 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06C7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-0092 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06C7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D04H1-4382 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F8-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D04H1-728 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D46-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D39-16 |
| filingDate | 2019-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110735230-B |
| titleOfInvention | Water-resistant polyvinyl alcohol nanofiber membrane, preparation method thereof and composite filter material |
| abstract | The invention discloses a polyvinyl alcohol nanofiber membrane with excellent water resistance, a preparation method thereof and a composite filter material. Mixing water and polyvinyl alcohol, heating and stirring until the mixture is completely dissolved to obtain a polyvinyl alcohol solution; mixing an organic solvent and polyvinyl formal to obtain a polyvinyl formal solution; mixing the polyvinyl alcohol solution and the polyvinyl formal solution to obtain an electrostatic spinning solution; preparing a polyvinyl alcohol nanofiber membrane by using the electrostatic spinning solution through an electrostatic spinning process; and carrying out heat treatment on the polyvinyl alcohol nanofiber membrane to obtain the polyvinyl alcohol nanofiber membrane with excellent water resistance. The invention adds the macromolecular nucleating agent polyvinyl formal, thereby improving the crystallinity of the polyvinyl alcohol nano fiber, increasing the physical crosslinking point and greatly improving the water resistance of the fiber. The polyvinyl alcohol with ultrahigh water resistance can be used as a filter material of a mask filter layer, can efficiently adsorb salt and oily particles in air, and has basically no attenuation of the filtering performance. |
| priorityDate | 2019-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.