Violet Tungsten Oxide Applied for Sunscreen Film

Violet tungsten oxide, mainly violet tungsten oxide nanoparticles, is a functional material that may be used to prepare a new type of environmentally friendly sunscreen film. The obtained transparent heat-insulating film can effectively shield ultraviolet rays. And the ultraviolet shielding rate is over 99%. Also, the heat insulation effect is good, and the infrared shielding rate is about 80%-95%. In a word, the thickness of tungsten oxide smart film is lower than that of traditional thermal insulation films, but its performances such as explosion-proof performance are improved.

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In general, the life of inferior thermal insulation films on the market is only about six months to three years. When the film is oxidized or peeled off, the heat insulation and heat preservation effect of heat-insulating film will be greatly reduced. And the film will not cool the room or the car effectively while the glass is still dark. In other words, if you have used an inferior thermal insulation film for more than 5 years, you had better do a UV measurement to see if the thermal insulation coefficient is still normal. However, according to experts, the life of smart films of nano violet tungsten oxide powder is about 10 years, some can reach 20 years. And they not easy to oxidize. Also, there will be no problems such as peeling and fading during the shelf life.

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