What are the insulation board materials?

Traditional insulation board materials include glass fiber, asbestos, rock wool, silicate and so on. And the new insulation board includes aerogel felt and vacuum board. Thermal insulation materials are divided into porous materials, thermal reflection materials and vacuum materials. Is to use the pores contained in the material itself for thermal insulation.

Temperature has a direct influence on the thermal conductivity of various thermal insulation materials. With the increase of temperature, the thermal conductivity of the material increases. Because when the temperature rises, the thermal motion of solid molecules in the material increases, and at the same time, the heat conduction of air in the pores of the material and the radiation between the pore walls also increase. However, in the temperature range of 0-50℃, this effect is not significant, and the temperature effect should be considered only for materials at high temperature or negative temperature.