FIELD: chemistry.
SUBSTANCE: group of inventions relates to inorganic chemistry. In order to obtain a reinforced airgel composition: a) precursor solution containing precursor materials of silica gel and a solvent is prepared; b) combining the precursor solution with the reinforcing material; c) transferring the silica gel precursor in solution to the gel composition to form a reinforced silica-based gel composition; d) recovering a portion of the solvent from the reinforced gel composition to produce a first reinforced airgel composition; e) exposing the first reinforced aerogel composition for heat treatment in an atmosphere with a reduced oxygen content at a temperature above 300 °C to obtain a second reinforced airgel composition. Additionally, hydrophobically bonded silicon is introduced into the first reinforced airgel composition prior to step d).
EFFECT: increase in hydrophobicity, absorption of liquid water, heat of combustion or the temperature of the onset of thermal decomposition of the airgel composition is provided.
20 cl, 19 ex, 1 tbl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| REINFORCED AEROGEL COMPOSITIONS COMPLIANT WITH FIRE SAFETY CLASS REQUIREMENTS | 2019 |
|
RU2811474C2 |
| SEGMENTED GEL COMPOSITES AND RIGID PANELS MADE FROM THEM | 2013 |
|
RU2676289C1 |
| INSULATIVE COMPOSITE MATERIALS CONTAINING INORGANIC AEROGEL AND MOLAMINE FOAM | 2014 |
|
RU2653154C2 |
| SEGMENTED GEL COMPOSITES AND RIGID PANELS PRODUCED THEREFROM | 2013 |
|
RU2634774C2 |
| ELECTRODE MATERIALS BASED ON CARBON AEROGELS AND METHODS FOR THEIR MANUFACTURE | 2020 |
|
RU2801325C2 |
| CATHODES BASED ON CARBON AEROGELS FOR LITHIUM AIR BATTERIES | 2020 |
|
RU2801185C2 |
| CATHODES BASED ON CARBON AIR GEL FOR LITHIUM-SULPHUR BATTERIES | 2020 |
|
RU2815484C2 |
| MINERAL FIBER BATTING FOR MANUFACTURE OF THERMALLY INSULATION COMPOSITE | 2013 |
|
RU2680443C2 |
| SOL-GEL METHOD OF PRODUCING SILICON DIOXIDE AEROGELS | 2016 |
|
RU2704219C2 |
| METHOD OF PRODUCING POROUS SiO XEROGEL WITH CHARACTERISTIC PORE SIZE BY MEANS OF BOTTOM-UP METHOD USING PRECURSOR HAVING ORGANIC SOLID SKELETAL SUPPORTS | 2010 |
|
RU2530049C2 |
