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The results of obtaining hollow glass microspheres and their effect on the properties of water-dispersion facade coatings when the titanium oxide and calcium carbonate in the formula are replaced by an equivalent volumetric number of spheres are presented.

A technology was developed for producing in a plasma reactor glass microspheres using the ferruginous quartzite tailings of the Kursk Magnetic Anomaly [KMA]. The predictable effects of the plasma-forming argon-gas flow rate and the plasma reactor power on the fractional composition were determined. It is shown that on increasing the plasma-forming gas flow rate from 1.5 to 2.5 m3/h and the current strength from 400 to 500 A the fraction amount over 630 μm increases due to coagulation processes. It is shown that the glass microspheres are enriched in aluminum and calcium oxides and depleted of silicon, magnesium, sodium, potassium, and iron oxides. It is shown that at high plasma temperatures, of the order of 9000 – 12,000 K, the particles melt completely and spherical glass microspheres ranging in size from 80 to 1250 μm are formed. Operational metrics, such as microhardness, acid resistance, and alkali resistance, of the glass microspheres based on the ferruginous quartzite tailings of KMA were investigated.

Polyurea was modified by glass microspheres. Compositions of polyurea coatings based on glass microspheres were obtained. The properties of the coatings were evaluated. The results of studies of polyurea-based coating compositions containing hollow glass microspheres are reported. Similar coatings are proposed for waterproofing pre-insulated heat pipes. The composition of a polyurea-based coating containing hollow glass or aluminum-silicate microspheres with diameter 200 – 300 μm and a range of functional additives including ammonium polyphosphate, wollastonite, and microcalcite in a 1 : 1 ratio of glass to aluminum-silicate microspheres was investigated.

It was found that modification of the surface of nickel-plated hollow glass microspheres with N-oxide-Cl-alkyldimethylamine causes overcharging of their surface and as a result improves wetting of particles of the solid phase with acrylic latex water-emulsion paint. The conductive paint coatings are characterized by high electrical conductivity. The paint developed can be used to protect people and equipment from electromagnetic radiation.

The use of hollow glass microspheres in syntact foam plastics with organosilicon binders is described. The physicomechanical and thermophysical properties of the heat-insulating materials obtained are investigated.

Glass compositions for fabricating hollow glass microspheres were developed. The basic physical and technical characteristics were studied and the dependence of the properties on the glass composition was determined. It is shown that the rheological properties of glass near the liquidus temperature affect the release of dissolved gases present in the glass. It is established that 20 – 200 μm in diameter hollow glass microspheres can be obtained.

The conditions for chemical precipitation of nickel on glass microspheres are determined. It is demonstrated that nickel-plated glass microspheres can be used as conducting fillers in paint-and-lacquer materials to produce coatings for effective protection from EMR in a frequency range of 0.15 – 1000 MHz.

The chemical activity with respect to alkali in cement (ASR resistance) for granulated aggregates (Penosital®, classic foam glass, microspheres of fly ash) in aqueous extract from concrete was investigated. The basic conditions for reaching ASR resistance of aggregates such as foam sital and microspheres of fly ash were determined.

Medicine needs means for targeted delivery of pharmaceutical preparations. Microspheres have a wide range of applications in medicine and are used as means for delivering pharmaceutical preparations and radiation to internal organs in the human body. Methods of obtaining and using glass microspheres, including radioactive ones, for medical purposes are described in this review.

It is established that nickel-plated hollow glass microspheres can be used as conducting and heat-insulating fillers for paintwork material serving as a basis for coatings with low resistivity and good heat-insulating properties.

Data on studying the production of glass microspheres by the plasma-spraying method are supplied. The effect of the operating parameters of the plasma gun on the granular composition of microspheres is investigated.