Applications of Silica Sol in Glass

Glass Fiber Expansion: Silica sol plays two main roles in glass fiber expansion: first, its fine particles fill the spaces between glass fibers, increasing the distance between them and achieving expansion; second, the silicon-oxygen bonds in the silica sol can form chemical bonds with the glass fiber surface, enhancing the bonding force between fibers and improving the strength of the expanded fibers.The application steps include preparing the silica sol solution, impregnating the glass fibers, heat treatment expansion, and cooling and shaping. Attention must be paid to solutionconcentration, impregnation uniformity, heat treatment temperature and time, and storage conditions.

Fire-Resistant Glass Manufacturing: Silica sol is used in fire-resistant glass to improve its barrier properties and safety. It increases the shock resistance of fire-resistant glass, helping to prevent glass breakage and flying fragments during a fire, ensuring personnel safety. As the core insulating material of inorganic composite fire-resistant glass, silica sol acts as a barrier during a fire, isolating high temperatures and flames and preventing the glass from melting under high-temperature conditions. Furthermore, fire-resistant glass produced using silica sol fire retardant maintains good optical transparency even at high temperatures, ensuring clear visibility during safe evacuation and emergency response procedures in the event of a fire.