http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107325320-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0482 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L25-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 2017-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107325320-B |
| titleOfInvention | Method for preventing polystyrene hollow microsphere from cracking in drying process |
| abstract | The invention discloses a method for avoiding cracking of polystyrene hollow microspheres in a drying process, which comprises the following steps: adding a polyvinyl alcohol aqueous solution into a rotary evaporation bottle of a rotary evaporator, and then placing the water-containing polystyrene microspheres into the rotary evaporation bottle for treatment to obtain high-temperature cured microspheres; washing the high-temperature cured microspheres with distilled water for multiple times, then placing the microspheres in ethanol for full exchange, discarding the microspheres sinking to the bottom of the ethanol, and collecting the microspheres floating on the surface of the ethanol; drying the collected microspheres floating on the surface to obtain polystyrene hollow microspheres; carrying out high-temperature heat treatment on the microspheres with the fine cracks; obtaining the polystyrene hollow microspheres without cracks. The prepared crackless polystyrene hollow microsphere has excellent surface quality and mechanical property parameters, and is widely applied to the fields of drug slow-release/controlled-release systems, chromatographic separation, catalysts, microreactors, photoelectric materials, colloidal crystal templates, high-energy physical experiments and the like. |
| priorityDate | 2017-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.