What is the heat insulation principle of the nano anti-corrosion heat insulation board

The heat insulation principle of the nano anti-corrosion heat insulation board mainly relies on a combination of multi-layer physical barriers and efficient energy reflection, which blocks heat transfer through three key mechanisms:
1. Specular reflective insulation: The surface or inner layer of the board contains high-reflectivity materials (such as nano-scale metal coatings), which can reflect more than 85% of sunlight (especially infrared and ultraviolet rays) and reduce heat entry from the source.
2. Microporous structure heat resistance: The internal nano-scale microporous structure (usually with a pore size < 200nm) can restrict air convection. At the same time, the static air inside the micropores itself has an extremely low thermal conductivity, which greatly weakens heat transfer by convection.
3. Infrared barrier/vacuum assistance: Some high-end products add an infrared reflective layer to further reflect the radiant heat of the object itself; a few structures also use a vacuum interlayer to directly eliminate the gas heat conduction path and enhance the heat insulation effect