For oil films with the same length 40 [micro]m, the wetting angle
is set at 30[degrees], 45[degrees], and 60[degrees] since initial wettability differs.
Using the known values [[gamma].sub.L], [[gamma].sup.LW.sub.L], [[gamma].sup.+.sub.L], and [[gamma].sup.-.sub.L] for test liquids and cosines of wetting angle
on surfaces, we can construct a plane in the coordinates ([square root of ([[gamma].sup.LW.sub.L])]/[square root of ([[gamma].sup.-.sub.L])]; ([[gamma].sup.+.sub.L])]/[square root of ([[gamma].sup.-.sub.L])]; [[gamma].sub.L] (1 + cos [theta])/2[square root of ([[gamma].sup.-.sub.L])]) and then calculate the value of, and [[gamma].sup.-.sub.S].
where [theta] represents the wetting angle
and [[sigma].sub.gs], [[sigma].sub.gl], and [[sigma].sub.ls] represent the interfacial tensions between the solid-gas, liquid-gas, and liquid-solid interfaces separately.
The wetting angle
, as very important parameter, can be used to determine surface energy and adhesion.
Generally, the surface condition of the sphere, for example, static wetting angle
, can dramatically affect the water entry phenomenon.
Regardless of the method used, any contact angle less than 90[degrees] represents a wettable/hydrophilic surface, while a hydrophobic surface wetting angle
is greater than 90[degrees] (see Figure 1).
Limiting wetting angle
of batch material compacted under a pressure of 20 MPa ([empty set] 12, height: 4 mm) was determined from the profile of water droplets thereon (Voyutsky, 1964).
It has also been observed that the emission of drops depends to a great extent on the static wetting angle
, that is, the angle that the drop makes with the contact surface.
Abstract: This paper presents some wetting angle
Keywords: Polymer, degradation, simulation, Monte Carlo, gloss, fracture toughness, wetting angle
Figure 3b shows the wetting force as a function of the wetting angle
after 2 seconds.
The addition of In to Sn-Zn eutectic leads to a lower wetting angle
on Ni and Cu substrates .