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Surface tension measurement

Tensiomètre K100 (Krüss)

Force curve

Key sample information:

 

Compatible samples:

  • Simple or complex liquids
  • Solids (fibers, rectangular plates, powders)
  • Liquid/liquid interfaces

Minimum fiber dimensions: depending on Washburn or Wilhelmy setup

Controlled temperature: 30 °C to 70 °C

Maximum capacity: 120 g

Resolutions:

Mass: 10 µg

Position (z-axis): 0.1 µm

 

Accessories

  • Thermostated bath (30–70 °C)
  • Platinum plate and ring
  • Glass tubes for capillary methods
  • Sample holder for fibers, powders, or plates

Precision Tensiometer K100 – KRÜSS

A versatile instrument for advanced characterization of interfacial properties of liquids, solids, powders, and fibrous interfaces.

Applications

The DSA100 goniometer is used to:

  • Assess the wettability of surfaces (hydrophilic or hydrophobic nature)
  • Control the quality of surface treatments (plasma, coatings, grafting)
  • Optimize the adhesion of adhesives, paints, inks, or varnishes
  • Characterize technical materials (superhydrophobic coatings, textiles, membranes)
  • Measure surface or interfacial tension in the formulation of complex liquids (cosmetics, inks, detergents)

Available Measurement Types

  • Static and dynamic contact angle (advancing/receding) on fibers or plates

  • Surface tension of liquids (Wilhelmy method – plate or ring)

  • Liquid/liquid interfacial tension (Wilhelmy method)

  • Surface tension of powders (Washburn method)

  • Density measurement of solids and liquids

  • Solid/liquid adhesion measurement via force curves, with synchronized videorecording

  • Calculation of surface energy of a solid

  • Force measurement range: 0.01 to 100 mN/m

  • Programmable motor speed: from 0.09 to 500 mm/min