Home > Dynamic Contact Angle Measuring Instruments and Tensiometers from Particle & Surface Sciences

Dynamic Contact Angle Measuring Instruments and Tensiometers from Particle & Surface Sciences

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article image DCAT 11

Particle & Surface Sciences  supply a range of advanced equipment for classic and new measuring methods.  

DCAT 11 and DCAT 11HR dynamic contact angle measuring instruments and tensiometers are available from Particle & Surface Sciences.  

The DCAT 11 is equipped with a high-tech weighing system, new efficient microelectronics and MS Windows software.  

DCAT 11 is the universal tensiometer system for classic measuring methods such as the exact determination of surface and interfacial tension of liquids. It was also developed as a dynamic contact angle measuring instrument for the application of new measuring methods such as measurement of the dynamic wetting properties of different solid surfaces.  

DCAT 11 series of dynamic contact angle measuring instruments and tensiometers allow measurement of wetting forces and capillarity effects very precisely and at high speed with a resolution in the microgramme range.  

Together with the integrated ‘Monolith’ weighing system, the electronics specifically developed for the DCAT 11 sets new standards. The weighing resolution is 10 μg with a measuring speed of up to 50 measuring values/second and a minimal relative speed of the solid sample against the liquid surface of 2 μm/s.  

The product properties of the DCAT 11 permit its use in interface-chemical applications, which so far were excluded from an exact analysis with electronic universal tensiometers.  

Typical applications of the DataPhysics DCAT 11:

  • Dynamic adsorption and contact angle measurement on wettable powders according to the modified and extended Washburn method
  • Determination of advancing and receding contact angle on prismatic or cylindrical solids due to the Wilhelmy method
  • Dynamic contact angle measurement on single fibres, fibre bundles, hairs and membrane tubes from a diameter of about 10 μm
  • Surface energy analysis according to a multitude of evaluation models (Owens- Wendt, Wu, acid-base, extended Fowkes, Zisman etc.) on the basis of the measured contact angles with various test liquids

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