It is common sense that water can dissolve many salts.But this common sense is not true on the material surface of the waterproof company.Researchers at the University of Tokyo have announced that they have confirmed experimentally that if the water proofing company is contaminated with salt, the closer the surface, the more difficult it is to dissolve in water.

Waterproof plugging

This result will help in the development of materials that can easily clean surface dirt.For example, it is easy to clean off the singey pan, not easy to residual dirt fiber material.

Researchers at the University of Tokyo professor, including the University of Tokyo, prepared a flat silicone plate that covered a waterproof company film to attach a layer of salt to its surface.After sinking the silicone plate into the water, the researchers found that the closer the waterproof company film surface, the more difficult the salts were to dissolve.

The researchers believe that this is due to the strong water molecules pulling on each other near the highly hydrophobic material surface, thus making the salts not easily soluble.

As early as 1953, researchers theoretically predicted that salt substances were difficult to dissolve on the surface of waterproof company materials, which was first confirmed by this study.

The researchers noted that the singes on the pan and the stains on the clothes are very difficult to wash away, which may be the same principle as the experiment.If the surface structure of waterproof company substances can be improved, it can develop both waterproof company and easy to remove surface dirt materials, and can also be used to develop ship coatings, making it difficult for shellfish to attach to the bottom.