Fumed alumina is a nano-scale alumina powder material, and its particle size is generally between 5 150 nm. Due to its small particle size, fumed alumina has good surface activity and composition uniformity, and has a high degree of optical, electrical, magnetic, mechanical and other properties. In addition, fumed alumina has good thermal stability and corrosion resistance, and can be stable over a wide range of temperature and chemical environments.
Thermal insulation coating is a new type of architectural coating that can reduce the energy consumption of buildings, and its main role is to reduce the heat loss and heat absorption of buildings, thereby reducing indoor temperature and humidity, and improving indoor air quality and comfort. Therefore, the mechanism of action of thermal insulation coatings is closely related to the thermal insulation materials they contain. So how does fumed alumina improve the thermal insulation effect of thermal insulation coatings?In fact, fumed alumina, ceramic microbeads, foamed microbeads and other materials can effectively reduce heat transfer, thereby improving the thermal insulation effect of thermal insulation coatings.
So what kind of changes can fumed alumina bring to thermal insulation coatings?
Fumed alumina is a common additive for thermal insulation coatings, whose main role is to increase the thermal reflectivity, UV resistance and durability of thermal insulation coatings. The thermal insulation coating after the addition of fumed alumina can effectively reflect the thermal radiation and ultraviolet rays of the sun, thereby reducing the heat absorption and heat loss of the building. In addition, fumed alumina can also enhance the oxidation and anti-aging properties of thermal insulation coatings, making them more durable.