http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110483994-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate | 2019-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110483994-B |
| titleOfInvention | Silicon oxide reinforced polyimide aerogel micro powder and preparation method thereof |
| abstract | The invention provides a silicon oxide reinforced polyimide aerogel micro powder and a preparation method thereof, belonging to the technical field of nano porous materials and heat insulation. The preparation method comprises the following steps: respectively dissolving a methyl ethyl vinyl ether-maleic anhydride copolymer, 3-aminopropyl triethoxysilane and aromatic diamine in a solvent; mixing the three solutions according to a certain proportion, stirring uniformly, standing for reaction to form gel, preparing micro powder gel by adopting a mechanical crushing method, and soaking the gel in a dehydrating agent; and finally, replacing the dehydrated gel solvent, and performing supercritical drying to obtain the silicon oxide nanoparticle reinforced linear polyimide aerogel micro powder. The polyimide aerogel micro powder obtained by the invention is brown, has an organic-inorganic double-network structure, has the rigidity of silicon oxide and the toughness of polyimide, and has low density (0.03-0.3 g/cm) 3 ) High specific surface area (200-600 m) 2 (g), good high temperature resistance and the like. |
| priorityDate | 2019-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.