| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62B18-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D04H1-728
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D04H1-728
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M10-02 |
| filingDate |
2018-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109731483-B |
| titleOfInvention |
Multi-dimensional hydrophilic-hydrophobic structure composite nanofiber membrane and preparation method thereof |
| abstract |
The invention discloses a multi-dimensional hydrophilic-hydrophobic structure composite nanofiber membrane and a preparation method thereof. The composite nanofiber membrane with the multi-dimensional hydrophilic-hydrophobic structure comprises a first hydrophobic layer, a first hydrophilic layer, a second hydrophilic layer and a second hydrophobic layer which are sequentially arranged from top to bottom; the water contact angles of the first hydrophobic layer and the second hydrophobic layer are respectively larger than 90 degrees, and the water contact angles of the first hydrophilic layer and the second hydrophilic layer are respectively smaller than 70 degrees; the second hydrophobic layer is a nanofiber-based membrane. Also discloses a preparation method of the composite nanofiber membrane with the multi-dimensional hydrophilic-hydrophobic structure. The invention can prepare the composite nanofiber membrane with the multi-dimensional hydrophilic-hydrophobic gradient structure by utilizing the plasma technology and the electrostatic spinning technology, and the membrane material can realize the directional adsorption and fixation of particles and has better filtering effect. The preparation process of the invention is safe and environment-friendly, no wastewater and waste chemical reagent are generated, and the preparation method is simple and easy to implement. |
| priorityDate |
2018-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |