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.
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Topics:
Wilhelmy Plates,
duNouy Rings,
Tensiometer,
Surface Tension,
interfacial surface tension,
Liquid Properties,
surface tension instruments,
surface tension analysis,
Digital tensiometer,
automatic Tensiometer
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”.
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Topics:
Tensiometer,
Surface Tension Measurement,
Surface Tension,
actual surface tension,
apparent surface tension,
Liquid Properties
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.
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Topics:
Automatic Surface Tension Measurment,
Surface Tension Measurement,
Surface Tension,
contact angle,
contact angle meter,
wettability,
Liquid Properties
Nearly every day we have a question about differences between Viscosity, Consistency and Surface Tension. There is usually a second part of the question;
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Topics:
Viscometers,
Viscosity,
Bostwick Consistometer,
Tensiometer,
Surface Tension Measurement,
Surface Tension,
Liquid Properties
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:
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Topics:
Surface Tension Measurement,
Surface Tension,
Liquid Properties
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.
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Topics:
Newtonian Fluid,
Viscometers,
Viscosity,
Bostwick Consistometer,
Consistency,
duNouy Rings,
Surface Tension Measurement,
Surface Tension,
Liquid Properties
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.
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Topics:
Wilhelmy Plates,
Automatic Digital Tensiometer,
Automatic Surface Tension Measurment,
"Ask Art",
duNouy Rings,
Tensiometer,
Surface Tension Measurement,
Surface Tension,
Liquid Properties
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.
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Topics:
Wilhelmy Plates,
Automatic Digital Tensiometer,
Automatic Surface Tension Measurment,
duNouy Rings,
Tensiometer,
Surface Tension Measurement,
Surface Tension,
Interfacial Tensiometer,
Fisher Tensiomat,
Liquid Properties,
Digital tensiometer
