Introduction to the Principle of Nano-Microporous Insulation Board!
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Nano microporous insulation boards, as a highly regarded high-temperature insulation material worldwide, have an excellent insulation performance that is 3 to 4 times better than that of traditional fiber insulation materials. Nano microporous insulation boards are tailor-made for high-temperature equipment with limited space and have been successfully applied in numerous complex thermal equipment, solving numerous global insulation problems.
The distinctive feature of the nano-micro-pore insulation board lies in its being made from special nano-inorganic refractory powders, which have a large specific surface area. The contact points between the nano particles are extremely small, forming a huge thermal resistance, thereby significantly reducing the thermal conduction and heat transfer effect of the material. Moreover, a large number of nano-level pores are formed between the nano particles, with an average pore diameter of approximately 20 nanometers, which is much smaller than the average free path of thermal motion of stationary air molecules at room temperature (60 nanometers). This makes it almost impossible for air molecules to undergo thermal convection in these nano pores, thus making the thermal conductivity of the nano-micro-pore insulation board even lower than that of stationary air at room temperature.
In high-temperature environments, heat radiation becomes the main mode of heat transfer. Therefore, special infrared blockers were added to the nano-mesh insulation boards to block and reflect infrared rays, thereby reducing the influence of radiation heat transfer and further lowering the radiation heat transfer coefficient of the material at high temperatures.
In conclusion, the nano microporous insulation board, due to its numerous characteristics, enjoys significant advantages in the field of insulation materials.