• uploads/1421834723contact-angle-ca-goniometer-250x250.jpg
  • uploads/1421834723contact-angle-measurement-system-250x250.jpg
Item Code test : Contact Angle

CA: When an interface exists between a liquid and a solid, the angle between the surface of the liquid and the outline of the contact surface is described as the contact angle θ (lower case theta). The contact angle (wetting angle) is a measure of the wettability of a solid by a liquid.

Significance

The contact angle is important wherever the intensity of the phase contact between liquid and solid substances needs to be checked or assessed: coating, painting, cleaning, printing, hydrophobic or hydrophilic coating, bonding, dispersing etc.