TX500K Rotating Drop Low Surface Tension Meter is a classic interfacial chemical analysis instrument based on Kino Technology from the United States. Using this series of surface tension meters enables low/Chao lowAnalysis of interfacial tension values is widely applied in industries such as daily chemical products, oilfield tertiary recovery, microemulsions, and surfactants. American Kono offers a one-stop solution for interfacial chemistry analysis instruments, including surface tension gauges, interfacial tension gauges, and contact angle meters.
 

Rotary DropperChao lowSurface Tension:

The increment of system's free energy when the unit interfacial area is increased under isothermal and isobaric conditions is referred to as interfacial tension. This system originates from the differing attractive forces between the molecules on either side of the interface and the molecules on the interface itself. Unlike the usual interfacial tension tests, the rotating drop method can achieve measurements for low orChao LowAnalysis of interface tension, which is often unattainable by conventional methods like the Platinum Plate Method or the Platinum Ring Method.
 

Low interfacial tension is typically referred to as 10-2-10-1 mN/m, while interfacial tension below 10-3 mN/m is termedChao lowSurface Tension.
 

To determineChao lowInterfacial tension, it is necessary to artificially alter the balance between the original gravity and interfacial tension to make the shape of the droplet easily measurable at equilibrium. This can be achieved by rotating the system, thereby increasing the effect of the centrifugal force field. This is known as the rotating drop method.Low ChaoPrinciple of interface tension testing. As shown in the figure: