If the contact angel between solid surface and liquid is 180 degree it indicates
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An angle between 90 ° and 180 ° means the surface is not wettable. It is hydrophobic. If the angle clearly approaches the value of 180 °, it is an ultrahydrophobic surface that is completely liquid-repellent. This property is described as a lotus effect.
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Surface is an ultra hydrophobic surface that is completely liquid-repellent.
Explanation:
An angle between 90° and 180° means the surface is not wettable. It is hydrophobic.
If the angle clearly approaches the value of 180° , it is an ultra hydrophobic surface that is completely liquid-repellent. This property is described as a lotus effect.
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