The contact angle (symbol θC) is the angle between a liquid surface and a solid surface where they meet. More specifically, it is the angle between the...

common way to measure surface energy is through contact angle experiments. In this method, the contact angle of the surface is measured with several liquids...

cause the drop to ball up and avoid contact with the surface. The contact angle (θ), as seen in Figure 1, is the angle at which the liquid–vapor interface...

tension, θ is the contact angle, where a concave meniscus has contact angle less than 90° and a convex meniscus has contact angle of greater than 90°...

they measure angles by mechanical contact they are classed as mechanical protractors. The bevel protractor is used to establish and test angles to very close...

needed] Contact angle is a measure of static hydrophobicity, and contact angle hysteresis and slide angle are dynamic measures. Contact angle hysteresis...

that by placing a droplet of liquid with a known surface energy and contact angle, the surface energy of the solid substrate can be calculated. The liquid...

is commonly used in surface science to measure contact angles and surface tension. In a contact angle measurement, the shape of the menisci is measured...

downhill contact angle will increase and represents the advancing contact angle while the uphill side will decrease; this is the receding contact angle. The...

brushes only make tangential contact with the commutator, while copper mesh and wire brushes use an inclined contact angle touching their edge across the...

surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact angles of a water droplet on an ultrahydrophobic material exceed 150°. This...

Cassie's law, or the Cassie equation, describes the effective contact angle θc for a liquid on a chemically heterogeneous surface, i.e. the surface of...

chemically homogeneous, and has zero contact angle hysteresis. Zero hysteresis implies the advancing and receding contact angles are equal. In other words, only...

be expressed in terms of water (liquid) contact angle θ. Hydrophilic membrane surfaces have a contact angle in the range of 0°<θ<90° (closer to 0°),...

a counter top in kitchen or a cooking pan) can be measured by the contact angle of water droplet. A University of Nebraska-Lincoln team recently devised...

increases. Contact angle, the angle at which a liquid droplet meets at a solid surface, is another way to characterize polymer surfaces. Contact angle (θ) is...

that it is not very precise, needs regular adjustment of the dwell (contact) angle, and at higher revolutions, its mass becomes significant, leading to...

the contact angle of water on the surface is an important characteristic that helps determine the ability of a surface to self-clean. This angle is affected...

curvature result in more vapor condensation. See the discussion on contact angle below.) Figure 2 above demonstrates this dependence in a simple situation...

shown by writing the Young–Laplace equation in spherical form with a contact angle boundary condition and also a prescribed height boundary condition at...

measured by its contact angle. The higher the contact angle the higher the hydrophobicity of a surface. Surfaces with a contact angle < 90° are referred...

slip angle results in a force, the cornering force, which is in the plane of the contact patch and perpendicular to the intersection of the contact patch...

diagram on the left, these factors include the size of the droplet, the contact angle, θ {\displaystyle \theta } , between the droplet and surface, and the...

a solid surface by measuring the liquid contact angle as shown in Figure 1. Taking the cosine of said angle and then graphing it against the surface...

electrowetting is also possible (contact angle grows with the voltage). It has also been experimentally shown by Chevaloitt that contact angle saturation is invariant...

Several methods can be used to measure the contact angle of a water drop on the surface of a polymer. The contact angle value is used to quantify wettability...

be made to that material. Good solderability requires wetting (low contact angle) of the substrate by the solder. Solderability varies depending on the...

is complete can be assessed with contact angle measurements. When an organic contaminant is present, the contact angle of water with the device is high...

directions) and the contact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range...

the contact angle between the penetrating liquid and the solid (tube wall). Washburn's equation is also used commonly to determine the contact angle of...