Discover Droplet Lab's smartphone-based goniometers and tensiometers for contact angle and surface tension measurements. Ideal for research and education
First, we consider the mechanical and thermodynamic definition of surface tension. This is followed by capillarity, contact angle, governing interface equations, relevant nondimensional numbers with surface tension effects, capillarity rise, temperature and surfactant effects of surface tension, and dynamic...
Chapter6.SurfaceTensionand ContactAngle 6.1Introduction Surfacetensionisaparametercanbeusedto characterizedpropertyofliquidsurface (interface)andmeasured. Contactanglecanbeusedmostlyto characterizesurfacepropertyofasolidand measured. FocusofthisChapter •Concerningtheequilibriumbehaviorof interfacesbetween“pure”phases...
KINO Scientific Instrument Inc. (EIN: 822853239 In U.S.) is a supplier of surface tension meters and contact angle goniometers, we can provide you the machine from China, HongKong, Japan and USA with the most convenient way and acceptable price you want
For a better understanding of the adsorption behaviour of biomolecules the surface tension parameters of surface-coatings for biological applications are determined by contact angle measurements. The correlation between surface tension parameters and chemical composition of thin films made of cellulose derivati...
Zhihui, Y., Yajie, Z., Jnghua, Y., 1997. Critical surface tension of acrylamide-grafted polypropylene copolymer by the contact angle method. Polym.--Plast. Technol. Eng. 36, 547-556.Yin Z H,Zhang Y J,Yin J H.Crytical surface tension of acrylamide-grafted polypropylene copolymer by ...
where γ is the surface tension of the water droplet, R is the radius of the water droplet, θf and θr are the equilibrium contact angles at the front and rear, respectively, and ϕ is the azimuthal (or polar) angle. For a wedge-shaped wettability gradient (see Fig. 15), it can...
aThe technique of determination of the contact angle and surface tension coefficient based on numerical calculation of the geometric characteristics of equilibrium shape of a liquid drop on the horizontal surface is stated. As initial data, the technique suggests using the dimensionless values of drop ...
Surface tension, contact angle and UV/ozone treatment The test liquids for the study were ultrafiltered deionized water (DI) (Fisher Scientific, Fair Lawn, NJ), diiodomethane (MI) (Sigma Aldrich, St. Louis, MO. 99% purity, 3.325 g/cc) and hexadecane (HD) (Sigma Aldrich, St. Louis, ...
USA KINO is the supplier of surface tensiometer,interfacial tensiometer,contact angle goniometer and contact angle measurement,contact angle meter,drop shape anlysis system.They can used for measurement of surface tension and contact angle.