http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19980044685-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F41-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-00 |
| filingDate | 1996-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1998-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-19980044685-A |
| titleOfInvention | Method of manufacturing magnetic fluid |
| abstract | The present invention relates to a method for modifying a ferromagnetic particle surface, and more particularly, to a method of producing a magnetic fluid in which a ferromagnetic material is stably dispersed in a high boiling point organic solvent by interfacial polycondensation of a surfactant on a ferromagnetic particle surface.n n n In the present invention, the silane coupling agent is first bonded to the ferromagnetic fine particles. Then, the ferromagnetic particles are dispersed in water, the surfactant is dissolved in a low boiling organic solvent, and the nutrient solution is mixed. At the interface of the nutrient solution, the silane coupling agent and the surfactant bonded to the ferromagnetic particles are interfacially condensed and directly chemically bonded. Thereafter, the ferromagnetic fine particles combined with the surfactant are dispensed into the high boiling organic solvent to prepare a high boiling magnetic fluid.n n n The magnetic fluid produced in this way is a colloidal solution in which ferromagnetic ultrafine particles are very stably dispersed in the fluid, and even though a considerable amount of centrifugal force or magnetic field is applied to the fluid, the particles are not separated from the fluid. As a result, the magnetic fluid is a magnetic fluid in the magnetic field. Behaves. |
| priorityDate | 1996-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.