http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256725-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2429-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2401-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2301-28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-286 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L29-04 |
| filingDate | 2019-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110256725-B |
| titleOfInvention | HEC/PVA interpenetrating network aerogel and preparation method thereof |
| abstract | The invention provides an HEC/PVA interpenetrating network aerogel and a preparation method thereof, which comprises the steps of firstly mixing polyisocyanate with a nano cellulose microcrystalline solution, and stirring to obtain a mixed solution; then mixing the mixed solution with a hydroxyethyl cellulose solution, stirring, and ultrasonically degassing; secondly, freezing and drying the HEC/CNC/polyisocyanate solution to obtain HEC/CNC/polyisocyanate aerogel; finally, soaking HEC/CNC/polyisocyanate aerogel by using a polyvinyl alcohol/glutaraldehyde solution, freezing and drying to obtain HEC/PVA interpenetrating network aerogel; the invention adopts hydroxyethyl cellulose as a matrix material and nano-cellulose microcrystal as a reinforcing framework; crosslinking and reinforcing a large amount of hydroxyl groups of the hydroxyethyl cellulose and the nano cellulose microcrystals by adopting polyisocyanate; cross-linking is carried out through glutaraldehyde to successfully prepare HEC/PVA interpenetrating network aerogel; the method is simple to operate and low in cost, and the mechanical property, the recoverability and the recycling frequency of the prepared HEC/PVA interpenetrating network aerogel are greatly improved. |
| priorityDate | 2019-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.