Can Superhydrophobic Cloth resist Hot Water?

by biancalauren | July 19, 2009 at 05:04 am
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It is now possible that our clothes are water-free especially when it rains.

The superhydrophobic effect is also present in natural surfaces such as lotus leaves. They got waxy hydrophobic coating and spiky surface texture that traps air beneath the water droplets. That goes only for tap water but in the case of hot water, it’s different. The heat from the water helps to expel the air from the pockets making the drops cling to the material instead of rolling off the cloth’s surface. Also, hot water has lower surface tension than tap water that’s why they sink into the microscopic pockets of the rough surface.

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