The thermal conductivity is low, and the heat loss is small. The thermal conductivity refers to the heat transferred through an area of 1 square meter in 1 second under stable heat transfer conditions, when the temperature difference between the two surfaces of a 1m thick material is 1 degree (K, C). It is expressed by λ, and the unit is watt/(meter·degree), w/(m·k). (The thermal conductivity of GFK antibacterial board is 0.073W (m·K), which is very low compared to metal materials. As we all know, metal is a good conductor of heat, among which the thermal conductivity of aluminum is 237W/(m·K), and the thermal conductivity of iron is 80W/(m·K). We know that the lower the thermal conductivity, the less likely the heat is to be lost. Because the thermal conductivity of GFK antibacterial board is very low, it has been tested that GFK antibacterial board can save 15% to 30% of energy consumption when used in places where constant temperature is required, saving a lot of energy for the country.