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Force Tensiometer

Tensíío

The new generation tensiometer for liquid and solid surfaces

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Theoretically, building a tensiometer is simple: putting a moveable sample stage underneath a force measuring device. But developing the best-in-class tensiometer is something completely different. It takes more than just using an utterly precise force sensor (which we did) and the sample positioning with the widest dynamic range (which we developed). It takes a change of perspective that focuses on the user and his task - you and your task. It takes the will to make your lab work as convenient, flexible, and time-saving as possible. We believe that Tensíío is that kind of instrument.

Applications

  • Surface tension and interfacial tension measurement for wetting and cleaning agents, emulsifiers, or other surfactants

  • Determination of the effectiveness and efficiency of surfactants by CMC measurement

  • Wetting behavior of tablets, pharmaceutical active ingredients, and excipients

  • Wetting of varnishes and paints

  • Wetting and adhesion of coatings

  • Development of cosmetic products

  • Wetting properties of inks

  • Wetting of fiber bundles and textiles, also for fiber-reinforced polymers

  • Sedimentation and ductility of dispersions

  • Analyzing surface modifications

  • Adhesion at superhydrophobic surfaces

Measuring methods

  • Surface tension using the tensile force of a lamella underneath a ring

  • Interfacial tension using the tensile force of a lamella underneath a ring

  • Surface tension using the tensile force of a lamella which is stretched until it disrupts

  • Interfacial tension using the tensile force of a lamella which is stretched until it disrupts

  • Automated determination of the critical micelle concentration by measuring the SFT at different concentrations

  • Surface tension using the wetting force of a liquid at a platinum plate or rod

  • Interfacial tension using the wetting force of a liquid at a platinum plate or rod

  • Contact angle using the wetting force of a liquid at a solid sample

  • Contact angle between a liquid and porous material using the capillary force

  • Surface free energy of a solid using contact angle data

  • Calculating adhesion-related scientific parameters for the interfacial contact

  • Density determination of a liquid using the buoyancy of a probe immersed in the sample

  • Density determination of a solid using the buoyancy of the sample immersed in a liquid

  • Sedimentation speed of a dispersion

  • Penetration resistance of a sediment against a probe

  • Using a force sensor, a software-controlled sample stage, and a camera (if available) for freely defined procedures

  • Carrying out a measurement up to 20 consecutive times and displaying the results together

  • Calculating the polar and disperse part of the surface tension from contact angle and surface tension data

  • Force and image evaluation for measuring adhesion of a drop brought into contact with a surface and removed again (part the "Special purpose" method)

Measuring results

  • Surface tension of a liquid

  • Interfacial tension between two liquids

  • Critical micelle concentration (CMC) of a surfactant and calculation of excess concentration and surface area per molecule

  • Advancing and receding contact angle of a solid body

  • Surface free energy of a solid

  • Work of adhesion, interfacial tension, and spreading coefficient between a solid and a liquid

  • Contact angle of a powder

  • Density of a liquid

  • Density of a solid

  • Sedimentation speed of a dispersion

  • Penetration resistance of a sediment

  • Sample temperature

Tensíío video series!

Many tasks, one solution: Experience Tensíío in action!

Tensíío Instrument Demo | Introduction

This introduction is part of a growing video series about Tensíío. Watch application expert Dr. Andrew Mellor explain how the setup can be adapted to your specific task. Experience the method variety of the instrument as well as its features designed to make the daily lab routine as convenient as possible.

Tensíío Instrument Demo | Measuring Surface Tension

This part of our Tensíío video series again features Dr. Andrew Mellor, demonstrating how easy surface tension can be measured and applied in tasks such as detecting detergent residue on a surface in simple steps. Learn about best practices for reliable measurements and about supporting functions of the ADVANCE software, such as result validation with predefined quality limits.

Tensíío Instrument Demo | Measuring Interfacial Tension

Watch Dr. Andrew Mellor explaining the relevance of interfacial tension for industrial applications and demonstrating how to measure it in simple steps with the Tensíío. Using an everyday problem, i.e. mixing a salad dressing, Dr. Mellor shows how important this parameter is for the production and analysis of emulsions.

Tensíío Instrument Demo | Dynamic Contact Angle

In this video, Dr. Andrew Mellor demonstrates the Wilhelmy dynamic contact angle method with our Tensíío. Learn how this approach helps characterize anti-adhesive and easy-slip behavior of materials and see how easy it is to carry out and evaluate a Wilhelmy measurement with Tensíío and the ADVANCE software.

Tensíío Instrument Demo | Washburn Powder Contact Angle

Following an introduction to powder contact angle measurement according to Washburn, watch Dr. Andrew Mellor demonstrate a live measurement with Tensíío. He focuses on thorough sample preparation as a prerequisite for reliable result and then explains how the KRÜSS Washburn Direct method simplifies evaluation as well as the recognition of poorly prepared samples.