DSA100L

Drop Shape Analyzer

Automatic wettability analysis of large surfaces

The Large version of the DSA100 Drop Shape Analyzer is prepared for automated wettability analysis by means of the contact angle or even the surface free energy. Fitted in a particularly wide frame and equipped with a large, rotating sample table plus an extra-long movement axis, the instrument can handle samples of an area of up to 500 × 500 mm.

Applications

Characterization of large pre-treated or coated surfaces
Investigation of the cleanliness of windows and frames
Surface analysis for monitors and touch panels
Characterization of automobile parts before coating or bonding
Hydrophobicity analysis of ceramic tiles

Measuring methods

Contact angle of a drop on a solid surface
Contact angles of two drops dosed in parallel
Automated position-dependent contact angle measurement and evaluation
Contact angle using a gas bubble beneath a solid surface in a liquid
Surface free energy of a solid using contact angle data
Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal
Carrying out a measurement up to 20 consecutive times and displaying the results together
Remote control of ADVANCE for integration in custom-designed, complex automations
Measuring the recently receded contact angle to characterize dewetting behavior

Measuring results

Static contact angle
Advancing and receding contact angle of a solid body
Contact angle using a bubble in a liquid
Surface free energy (SFE) according to the following models: Owens-Wendt-Rabel-Kaelble (OWRK), Fowkes, Extended Fowkes, Van Oss & Good (Acid-Base), Schultz, Wu, Zisman, Equation of State
Position-dependent contact angle and SFE
Temperature