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Winlight takes you to understand the principle of bidding farewell to fogging
Release time:
2023-08-21
In recent years people are pursuing higher and higher quality of life, and the demand for anti-fog mirrors, anti-fog glasses, anti-fog cameras, etc. is getting more and more attention and expectation. Anti-fog products are generally in the product surface to do a layer of coating so as to achieve the anti-fog effect, in general, super-hydrophilic or super-hydrophobic can play the anti-fog effect, the common anti-fog products on the market are generally used in super-hydrophilic materials, i.e., super-hydrophilic anti-fog liquid, in addition to anti-fog effect, anti-fog coating also has the following functions:
1. super hydrophilic self-cleaning function: anti-fog coating in the paint surface and dirt between the formation of super hydrophilic film, so that dirt and paint the surface separation, the rain scouring so that the stolen goods in the role of gravity washed away by the water, to achieve the purpose of self-cleaning.
2. Anti-static function: anti-fog coating surface hydrophilic performance, a layer of water film on the surface, there is a certain conductive function, does not absorb dust and particles in the air, dust, exhaust gases are also difficult to adhere to the painted surface.
3. Decomposition of oil function: part of the anti-fog solution using TiO2 program, with a photocatalytic effect, can decompose car exhaust, factories, hotels emit soot pollution.
Principle of anti-fog coating:
The cause of fog is hot air hitting the surface of cold objects and condensing into small water droplets. Light is diffusely reflected on the surface of the small droplets, giving the impression of fog.
Therefore, the anti-fog coating is to prevent the production of such small water droplets, super hydrophilic surface tension, water can not form water droplets on its surface, but a layer of water film, fundamentally prevent the formation of fog.
Anti-fog coating realization way:
Anti-fog solution is generally used in 2 ways: ① surfactant; ② inorganic materials.
Surfactant: This program can easily achieve anti-fog effect, but the surfactant just floats on the surface of the product, does not form crosslinks, after several washings will be taken away by the water, anti-fog will fail, need to repeat on the anti-fog solution, and the product does not have any wear resistance;
Inorganic materials: the current high demand for products are used in this program, by adding super hydrophilic inorganic materials, you can achieve a long-lasting anti-fog effect, if the surface crosslinking is good if it has a strong friction resistance, compared to the surfactant anti-fog liquid, easy to use, do not need to spray again every time you use it, and wiped with a cloth, thrown to maintain the effect of a very good, to bring a better experience to the consumer.
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Address: Unit 502, 5th Floor, West Side, No.12 Haijing East Road, Xiamen Area, China (Fujian) Pilot Free Trade Zone
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