Water-repellent Principle Of Waterproof Canvas Tarpaulin-lotus Leaf Effect

When talking about the water repellent principle of waterproof canvas tarpaulin, we must first talk about the lotus effect (lotus effect).

The lotus leaf has a hydrophobic and non-absorbent surface. Rainwater falling on the surface will form water droplets due to surface tension. The contact angle between water and the leaf surface will be greater than 150 degrees. As long as the leaf surface is slightly inclined, the water droplets will be formed. Get away. Therefore, even after thunder and heavy rain, the surface of the lotus leaf can still remain dry; in addition, because the rolling drops of water will take away some dust particles, it happens to achieve the effect of self-cleaning, which is that the lotus can always The main reason to keep it clean.

Coating chemical additives on the way of fabric making makes the waterproof canvas tarpaulin achieve the effect similar to the lotus leaf effect, thereby obtaining the function of repelling rain.