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Nano Biotechnology > Surface Science > Optical Contact Angle measuring Instruments

Optical Contact Angle measuring Instruments

(Available in: Singapore, Malaysia, Thailand, Indonesia and Vietnam)

In latest diverse engineering applications the ability of liquids to wet solids (wetting process) affects the quality of the products and their manufacturing processes. Typical examples are the production and application of paints and varnishes industries, research and development of composite materials, applications of adhesives and solvents for engineering materials as well as the biocompatibility of medical implants.

The optical contact angle (OCA) provides analytical values by precise analysis of static and dynamic contact angles, the surface free energy of solids as well as the surface and interfacial tension of liquids.

Typical applications:
  • Static and dynamic contact angle
  • Surface free energy
  • Wetting envelopes
  • Work of adhesion
  • Pendant drop
  • Lamella contour
  • Drop on fiber
  • Oscillating / relaxing drop
Features:
  • Video measuring system with high resolution camera with up to 87 images per second. Optional high speed camera with up to 1024 x 1024 pixels and up to 2200 images/sec available
  • Halogen lighting with software controlled continuous adjustable intensity without hysteresis for a homogeneous back lighting
  • Serial or USB interface to PC
Measuring range for contact angles0...180°; (+/-) 0.1°
Measuring range for surface and interfacial tensions1x10-2....2x10mN/m; resolution (+/-) 0.01mN/m
Temperature measurementIntegrated temperature measurement and digital display 2 x PT100 inputs for -60...700°C (option), 0.1K resolution
Software
  • Static and dynamic contact angles according to the sessile and captive drop
  • Calculation of surface free energy
  • Calculation of surface and interfacial tension based on pendant drop contours and rising bubbles
  • Calculation of surface and interfacial tensions of liquids based on liquid lamellae on test spheres and rods
  • Calculation of complex interfacial dilatational module based on oscillating or relaxing drop contours

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