AEROGELS, CALCINATED APPLIANCES, CRYSTAL-STRUCTURED APPLIANCES AND METHODS FOR MAKING THEM Russian patent published in 2015 - IPC C01G25/00 C01G25/02 C04B35/119 A61K6/27 B82Y30/00 

FIELD: medicine.

SUBSTANCE: method for producing aerogel involves the stages of providing a first dispersion solution of zirconium dioxide containing crystalline metal oxide particles having a median size of primary particles of no more than 50 nanometres, adding a radical reactive surface modifier to the dispersion solution of zirconium dioxide to produce a radical polymerised surface-modified dispersion solution of zirconium dioxide, adding a radical polymerisation initiator, heating to form gel, extracting alcohol if any from the gel by supercritical extraction to produce aerogel. Solid aerogel containing an organic material and crystalline metal oxide particles is produced. A crystalline metal oxide particle count varies within 3 to 20 volume percent according to a total volume of solid aerogel with at least 70 mole percent of a crystalline metal oxide represents ZrO₂. The zirconium dioxide particles are produced in a hydrodynamic reactor 100 containing a feeding tank 110, a pump 120, a tube reactor 130, a cooling device 160.

EFFECT: produced aerogel can be sintered as a fully-dense material that makes it possible to use the same, in particular for making dental restoration and orthodontic appliances.

17 cl, 4 dwg, 9 tbl, 34 ex