Surface Tension
Surface tension is a physical phenomenon that describes the cohesive forces between the molecules at the surface of a liquid. It is measured in units of force per unit length and is influenced by various factors such as temperature, pressure, and the nature of the liquid.
DCAT Devices for Measuring Surface Tension
All devices mentioned in the document are used for measuring the surface and interfacial tension of liquids and solids. These devices rely on measuring the force resulting from surface and interfacial tension and use different methods to measure this force, such as the Wilhelmy plate method, the Du Noüy ring method, and the Zisman method. These devices can be used to measure the surface and interfacial tension of liquids and solids at different temperatures and under different conditions, making them valuable tools for research and industrial applications.
DCAT 8 & 9 are weight-based measuring instruments used for determining the surface and interfacial tension and the density of liquids and solids. DCAT 15 is a versatile instrument used for determining the surface and interfacial tension, surface energy of solids, and sedimentation and penetration properties of liquids and solids. It offers additional measuring methods compared to other DCAT models, such as dynamic contact angle determination and automated critical micelle concentration (CMC) determination using a liquid dosing unit. The DCAT 15 can be extended with a liquid dosing unit LDU 25 to create sequential concentration series of surfactant solutions. It features an integrated digital thermometer and a liquid temperature control unit TV 70 for measuring temperature-dependent properties. The weighing range for DCAT 15 is 10 μg to 210 g, and the measuring value rate is up to 100 values/s. This instrument offers fast and precise actuation, automatic crash protection, and intuitive operation via the TP 50 control panel. The DCAT 25 is a weight-based measuring instrument that offers a highly precise weighing system with a resolution of 0.1 μg, making it suitable for measuring even on single fibers. It is used for determining the surface and interfacial tension, the surface energy of solids, and the adhesion properties of liquids and solids. The DCAT 25SF is a weight-based measuring instrument used for determining the surface and interfacial tension, the surface energy of solids, and the adhesion properties of liquids and solids. It is highly precise, with a resolution of 0.1 μg, making it suitable for measuring even on single fibers.
DCAT 8 & 9
DCAT 8 & 9 Measuring Instruments
DCAT 15
DCAT 15 Weight-based Measuring Instrument
DCAT 25
DCAT 25: A Versatile Weight-Based Measuring Instrument
Features
DCAT 25SF
DCAT 25SF Measuring Instrument
Features