http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114628143-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F41-0253 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J15-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-445 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J15-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F41-02 |
| filingDate | 2022-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114628143-B |
| titleOfInvention | A kind of preparation method of low volatility and high temperature resistant magnetic fluid |
| abstract | The invention discloses a method for preparing a low-volatility and high-temperature-resistant magnetic fluid, which belongs to the technical field of magnetic fluid preparation. The method is as follows: adding iron acetylacetonate and manganese acetylacetonate into the oleic acid solution, stirring and heating to obtain a reaction solution I; adding an ester solvent to the reaction solution I, stirring and heating to obtain a reaction solution II; putting the reaction solution II into In the three-necked flask, feed inert gas, stir, heat, and then cool to room temperature to obtain reaction solution III; add high-temperature-resistant carrier liquid into reaction solution III, feed inert gas, stir, and heat, and evaporate all the ester solvents. Cool to room temperature to obtain low-volatility and high-temperature-resistant magnetic fluid. The magnetic powder in the magnetic fluid of the present invention is MnFe 2 O 4 , the particle diameter is 5-50nm, and the magnetic saturation intensity is 50-500GS. The magnetic saturation intensity is controlled by the content of the magnetic powder, and the volatilization loss of the magnetic fluid is less than 1% in 60 minutes at 250°C. |
| priorityDate | 2022-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.