http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112852005-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0071 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate | 2020-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112852005-B |
| titleOfInvention | Graphene/polyimide microcrystalline ball composite material and preparation method and application thereof |
| abstract | The invention relates to a graphene/polyimide microcrystalline ball composite material and a preparation method and application thereof, wherein the preparation method comprises the following steps: (1) adding high-purity graphene and a thermal expansion microsphere foaming agent into a soluble polyimide solution, and stirring at a high speed to prepare a low-viscosity mixed solution; (2) pouring the mixed solution on a metal plate, evaporating the solvent, and then carrying out non-contact heating to obtain the graphene/polyimide microcrystalline ball composite material; the high-purity graphene is prepared by calcining graphite powder at a high temperature of 2850 ℃, intercalating and mechanically stripping, wherein the number of laminas is less than 10, and the carbon content is more than 99.9 wt%; the graphene/polyimide microcrystalline ball composite material prepared by the method is a graphene/polyimide microcrystalline ball film, and the sunlight absorption efficiency is 90-95%. The graphene/polyimide microcrystalline ball composite material prepared by the method has high sunlight absorption rate and high heat conductivity, and has good application prospect in solar water heaters and photovoltaic power generation. |
| priorityDate | 2020-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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