BASF develops new waterproof film
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The film has a feature that the lotus leaf does not absorb water droplets and dust particles. As it dries, this film forms a nanostructured surface that mimics the surface of the lotus leaf. Wax nanocrystals with a diameter of about 1 nanometer are arranged in peaks and valleys. All the water on the surface forms water droplets and roll off. The surface can also keep dry under heavy rain. At the same time, the water droplets collect tiny dust particles during rolling and reach the surface. "Self-cleaning" effect.
The researchers said that the film can be sprayed onto the surface of the object with a commonly used aerosol, and when it gradually disappears, it can be easily re-injected once. BASF is still fine-tuning this waterproof film process.