http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110078521-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-62605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-587 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-626 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-587 |
| filingDate | 2019-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110078521-B |
| titleOfInvention | Submicron silicon nitride hollow microsphere and preparation method thereof |
| abstract | The invention relates to a submicron silicon nitride hollow microsphere and a preparation method thereof, which is technically characterized by comprising the steps of (1) synthesizing SiO by taking silicon dioxide microspheres synthesized by a stober method as a silicon source and phenolic resin synthesized by resorcinol and formaldehyde as a carbon source 2 @ RF (Resorcinol-formaldehyderesin) core-shell structure as precursor; (2) taking a certain amount of the precursor prepared in the step (1) to perform carbothermic reduction nitridation reaction at a certain temperature; (3) and (3) carrying out oxidation decarbonization and acid washing on the powder prepared in the step (2) to remove silicon dioxide, thus obtaining the silicon nitride hollow microspheres. The technical scheme provided by the invention can prepare the submicron silicon nitride hollow microsphere with controllable particle size, uniform microstructure and morphology and purer components. The preparation process developed by the invention is stable, high in repeatability and low in cost, and is beneficial to batch production of the silicon nitride hollow microspheres. |
| priorityDate | 2019-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.