When tempted to think I know all there is about surface tension measurement, further information brings me back to earth. I’m conversant with the principal applications: surfactant analysis, plating, detecting contaminants, development of ink and the like. I have assisted customers to set up and calibrate duNouy Ring tensiometers for most applications -- all the while taking for granted that the Ring technique was the method of choice -- with only infrequent questions arising about Wilhelmy Plate tensiometers.
CSC Scientific Blog
Topics: Surface Tension, duNouy Rings, Wilhelmy Plates, Tensiometer, Liquid Properties, automatic Tensiometer, Digital tensiometer, interfacial surface tension, surface tension instruments, surface tension analysis
An understandable definition of surface tension: “The attraction force between molecules at the surface of a liquid. The force that keeps if from flying off into space”.Read More
A classical definition of Contact Angle:Read More
Contact angle and surface tension. The two terms are never far apart. Run a Google search of "contact angle" right now and see for yourself. You'll often see the terms mentioned within a breath of one another because contact angle and surface tension are two approaches to surface analysis - the study of how a surface interacts with other materials or components. Generally speaking, there is also a relationship between the two measurements, one that tends not to be very clearly explained in other resources. I hope to remedy that today.Read More
Nearly every day we have a question about differences between Viscosity, Consistency and Surface Tension. There is usually a second part of the question;Read More
What do an Irish music technology developer, a British manufacturer of arcade and retro-style furniture, and a dance bar in San Francisco have in common? Given a million guesses, I’d never have thought of this:
I used to think that liquids were pretty simple things. Is that what you think too?
Not so fast. Let’s take a look at three properties of liquids and see if we change our view.
Automatic digital tensiometers are expensive - three to four times more so than a high-precision manual tensiometer. We hope to clearly depict when an automatic digital tensiometer is not merely nice to have, but essential.
One of the ways to describe surface tension in fluids is: the property of a liquid’s surface that resists force. It serves as a barrier to foreign materials and holds the liquid together. This ever-present property is caused by unbalanced forces on surface molecules that pull toward the main part of the liquid.
Topics: Surface Tension Measurement, Surface Tension, duNouy Rings, Wilhelmy Plates, Tensiometer, Interfacial Tensiometer, Automatic Surface Tension Measurment, Fisher Tensiomat, Liquid Properties, Automatic Digital Tensiometer, Digital tensiometer
I am regularly startled by little things that trigger new understanding about our slice of the instrument World. This time it is about surface tension.