Tensiometers - Import export

The tensiometers of the DCAT series are measuring instruments for force-based characterisation of surfaces and interfaces. Because of the compact and modular product design of the DCAT series, a bespoke combination of device and accessories can be found for any use case. The DCAT 25 is the multifunctional all-round model of the series. Measurements can be carried out at defined humidity and at temperatures between -15 °C and 300 °C. In addition it is possible to investigate the viscoelasticity of monolayers in combination with the Langmuir trough module LTMr. As the only tensiometer in the DCAT series, this model can analyse the adhesive force extensively thanks to an additional camera module. Measurements: - surface and interfacial tension - liquid density and solid density - dynamic contact angles - surface energy of solids - critical micelle concentration (CMC) - sedimentation and penetration - analysis of adhesive force - surface pressure - viscoelasticity of monolayers

The tensiometers of the DCAT series are measuring instruments for force-based investigation of surface and interface properties. Because of the compact and modular product design of the DCAT series, a bespoke combination of device and accessories can be found for any use case. The DCAT 15 is the standard model of the DCAT series and offers more measurement methods and modular extensions compared to the entry-level models. In addition to measuring surface and interfacial tension as well as density, the DCAT 15 can be used to determine dynamic contact angles, the surface energy of solids and to investigate sedimentation and penetration properties. Together with the LDU 25 liquid dosing unit, automatic concentration series can be generated to determine the critical micelle formation concentration. Measurements: - surface and interfacial tension - liquid and solid density - dynamic contact angles - surface energy of solids - determination of the critical micelle concentration (CMC)

The tensiometers of the DCAT series are measuring instruments for force-based investigation of surface and interface properties. Because of the compact and modular product design of the DCAT series, a bespoke combination of device and accessories can be found for any use case. The DCAT 25SF single-fibre tensiometer contains a high-precision weighing system with a resolution of up to 0.1 μg. This enables measurements even on single carbon or glass fibres. Measurements can be carried out at defined humidity and at temperatures between -15 °C and 135 °C. In addition is it possible to investigate the viscoelasticity of monolayers. Furthermore, concentration series for determining the critical micelle concentration (CMC) can be automatically generated and measured. Measurements: - surface and interfacial tension - liquid density - dynamic contact angles - surface energy of solids - determination of the CMC - surface pressure - viscoelasticity of monolayers

The tensiometers of the DCAT series are measuring instruments for force-based investigation of surface and interface properties. Because of the compact and modular product design of the DCAT series, a bespoke combination of device and accessories can be found for any use case. The DCAT 9 is the powerful entry-level model of the product series. It allows the measurement of surface and interfacial tensions as well as the determination of the density of solids and liquids. Possible measurements: - surface and interfacial tension - density of solids and liquids

The SVT 25 spinning drop tensiometer is an optical instrument for measuring low to ultra-low interfacial tensions and for investigating interfacial rheological properties. Ultra-low interfacial tensions occur particularly in microemulsions, which are used, among other things, in enhanced oil recovery (EOR). Features of the SVT 25 spinning drop tensiometer: - measurement of ultra-low interfacial tensions based on the contour of rotating drops according to the models of Vonnegut, Cayias-Schechter-Wade or Young-Laplace - highly dynamic measuring drive with 0 to 20000 rpm - oscillation measurements with oscillation periods of 0.5 s to ∞ and a maximum acceleration of 500 revolutions/square second - motorised tilting table - fast lens with 6.5x zoom and integrated, continuous fine focus - temperature-controlled measuring chambers able to set temperatures between -30 °C and 180 °C - special capillary for water-based samples at temperatures up to 130 °C