http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109803522-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K9-00 |
| filingDate | 2017-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109803522-B |
| titleOfInvention | Double-layer wave-absorbing material and preparation method thereof |
| abstract | The invention provides a double-layer wave-absorbing material and a preparation method thereof, wherein the method comprises the following steps: performing first ball milling on carbonyl iron powder, soaking the carbonyl iron powder in an organic solvent, and filtering to obtain first ball-milled carbonyl iron powder, and performing second ball milling on carbon powder, soaking the carbon powder in acid, and filtering to obtain second ball-milled carbon powder; mixing the first ball-milled carbonyl iron powder with epoxy resin, a first diluent, a first curing agent and a first anti-settling agent, and curing and forming to obtain an impedance layer of the double-layer wave-absorbing material; and mixing the carbon powder subjected to the second ball milling with epoxy resin, a second diluent, a second curing agent and a second anti-settling agent, and curing and molding the mixture above the impedance layer to be used as a matching layer of the double-layer wave-absorbing material, thereby obtaining the double-layer wave-absorbing material. The double-layer wave-absorbing material has the advantages of wide wave-absorbing frequency band and strong wave-absorbing performance, is low in density and light in weight, and can be applied to the fields of aerospace, ships and warships, radar antennas, electronic shielding and the like. |
| priorityDate | 2017-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.