Yellow tungsten oxide nanopowder may be used to prepare a nano transparent heat insulation coating for architectural glass. The prepared coating is an environmentally friendly coating. And it is believed that such heat insulating coating a good helper for glass sun protection in the hot summer. Some experts have done a test comparing the thermal insulation effect of the blank glass and the glass coated with transparent heat-insulating coating:
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Specifically, two pieces of glass of 150mm×100mm×5mm, one piece of glass is coated with transparent heat-insulating coating (just one side), the other is a blank glass, two hollow boxes, thermometer, exposure to the sun, testing the temperature inside the box at different times, the results show that:
At the beginning of the contrast test between the coated glass and the blank glass, the temperature in both chambers increased, after 1h, the temperature gradually increased. Throughout the process, the temperature of the compartment in which the coating is applied is always lower than the temperature on the side where the coating is not applied. After 0.5h of irradiation, the difference between the two room temperatures reached 5°C, and the temperature difference increased with time. After 12h, the air temperature difference was 7°C. It can be seen that the tungsten oxide transparent heat-insulating coating has obvious heat-insulating effect in summer.
