What is the contact angle of the plated crystal?What is the contact angle of the plated crystal?
Contact angle: refers to the gas, liquid, solid three-point intersection at the gas-liquid interface tangent through the liquid and solid-liquid boundary between the angle θ.
You can use the measurement contact angle to calculate the surface tension, or the degree of liquid wetting measure, but our customers are using the contact angle to determine the hydrophobicity and hydrophilicity, in order to confirm the object surface treatment effect or cleaning effect.
If the contact angle is less than 90 degrees, the solid surface is hydrophilic, that is, the liquid is easier to wet the solid, the smaller the angle, the better the wettability;
If the contact angle is greater than 90 degrees, the solid surface is hydrophobic, that is, the liquid is not easy to wet the solid, easy to move on the surface, the general contact angle of 110 degrees is a perfect water droplets effect, hydrophobicity is very good.