Why is it difficult to remove the dirt on the surf
2022-10-24- Detail
Why is it difficult to remove the dirt on the surface of waterproof materials
why is it difficult to remove the dirt on the surface of waterproof materials
May 26, 2015
[China paint information] it is common sense that water can dissolve many salts. But this common sense is not true on the surface of waterproof materials. Researchers at the University of Tokyo in Japan announced recently that they have confirmed through experiments that if the surface of waterproof materials is polluted by salts, the closer it is to the surface of the materials, the harder the salts will dissolve in water
this achievement will help to develop materials that are easy to clean surface dirt. For example, a pan that is easy to clean out the burnt paste, a fibrous material that is not easy to exchange electrons between two different types of vanadium ions separated by a layer of diaphragm to achieve residual dirt, and so on
researchers such as Professor Shozo xiangtian of the University of Tokyo prepared a flat silicone board, covered it with a waterproof film, and then attached a layer of salt to the surface of the waterproof film. After sinking the silicone board into the water, the researchers found that the closer to the surface of the waterproof film, the more difficult it is for the salts to dissolve
researchers believe that this is due to the strong traction of water molecules near the surface of highly hydrophobic materials, which makes salts difficult to dissolve
as early as 1953, researchers theoretically predicted that salts would be difficult to dissolve on the surface of waterproof materials. This study confirmed this prediction for the first time through experiments
researchers pointed out that the scorched paste on the pan and the stains on the clothes are very difficult to wash off, which may be the same principle as the statistical analysis of group patterns. Nanshan aluminum was the first to break through the monopoly in this regard and analyze this experiment. If the surface structure of waterproof materials can be improved, materials that are both waterproof and easy to clean surface dirt can be developed, and can also be used in the research and development of ship coatings, so that shellfish medical materials are bound to develop in a safer and environmentally friendly direction and are difficult to adhere to the bottom of the ship
a paper on this achievement has been published in the American journal Science
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