http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111253614-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111253614-B |
| titleOfInvention | A kind of ultra-light polyimide airgel and preparation method thereof |
| abstract | The present invention proposes an ultra-light polyimide airgel and a preparation method thereof. A polyamic acid solution is prepared by using a rigid aromatic diamine monomer and a highly rigid aromatic dianhydride monomer, and a polyamic acid with a low solid content is prepared. solution, preparation of polyimide wet gel with low solid content, solvent replacement and supercritical drying to obtain ultra-light polyimide airgel. The invention solves the technical problem that polyimide with low solid content is difficult to form a high-strength stable gel, and reduces the minimum density of polyimide airgel from 20 mg/cm 3 to 2 mg/cm 3 , which is a world-wide The lightest polyimide airgel material reported. |
| priorityDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.