Static Contact Angle Measurement

Static Contact Angle Measurement

Device

DSA100 / DSA 30 Krüss

Expected Result

The analysis yields critical data on how liquids interact with a material's surface, aiding in the optimization of products like coatings, adhesives, and water-resistant fabrics. Understanding these interactions is essential for improving product performance and durability.

Method

The device dispenses droplets of liquids, such as water and diiodomethane, onto the surface under investigation. By capturing and analyzing the shape and contact angle of these droplets the instrument assesses surface energy and wettability. Contribution of the polar, apolar and van der Waals forces can be assessed.

Case Study

A newly developed self-assembled monolayer is used to render the surface of a polymer foil hydrophilic. Contact angle measurements are carried out to identify the performance of different deposition techniques.

Contact Angle Measurement Device - DSA100 / Krüss

Contact angle measurement device for determining surface energy, hydrophobicity, and wettability of solid samples.
Contact Angle Measurement Device, credit: JOANNEUM RESEARCH /Bergmann
Contact angle measurement device for determining surface energy, hydrophobicity, and wettability of solid samples.
Contact Angle Measurement Device, credit: JOANNEUM RESEARCH /Bergmann

Specifications

  • Solid substrates of low roughness
  • Sessile Drop Measurement
  • Measuring fluids: water, diiodomethane
  • Sample size: up to 10×10 cm²
  • Motorized stage
  • Automatic syringe change between liquids

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