Aerogel thermal insulation coatings offer exceptional thermal insulation performance, primarily demonstrated in the following aspects:
1. Low thermal conductivity: Aerogel has a nanoscale porous structure, with a porosity typically exceeding 90%. This unique structure results in extremely low thermal conductivity. Typically, the thermal conductivity of aerogel thermal insulation coatings can be as low as 0.013-0.025 W/(m・K). Traditional insulation materials, such as polystyrene boards, typically have a thermal conductivity of around 0.03-0.041 W/(m・K), and rock wool boards typically have a thermal conductivity of 0.04-0.05 W/(m・K). In comparison, aerogel thermal insulation coatings have significantly lower thermal conductivity, effectively preventing heat conduction.
2. Significant high-temperature insulation: In high-temperature environments, aerogel thermal insulation coatings can effectively reduce the temperature of the protected surface. For example, when applied to high-temperature equipment such as industrial furnaces, it can reduce the surface temperature of the equipment by 30-50°C or even more, reducing heat loss to the surrounding environment, improving the equipment's thermal efficiency, and lowering energy consumption.
3. Excellent Low-Temperature Thermal Insulation: In low-temperature environments, aerogel thermal insulation coatings can reduce cooling losses. For example, in cold storage, aerogel coatings can effectively maintain low temperatures, reducing the operating time and energy consumption of refrigeration equipment. Compared to cold storage without aerogel coating, energy consumption can be reduced by approximately 15%-25%.
4. Strong Thermal Insulation Stability: Aerogel thermal insulation coatings exhibit excellent stability. Over long-term use, their thermal insulation performance will not significantly degrade due to changes in environmental factors such as time, temperature, and humidity. Even in extremely harsh conditions, such as prolonged exposure to high temperature, high humidity, or strong UV rays, they maintain excellent thermal insulation performance.