The characterization of solid surfaces and liquids play a vital role in understanding adhesion, material wettability, biocompatibility, lubrication of solid surfaces as well as the wetting, spreading, washability and adsorption of liquids. Contact angle and interfacial tension measurement provide the information needed for the development and modification of liquid and solid surfaces.
Module for Contact Angle measurement
The CA-1 is a modular extension of the PAT-1 Drop Bubble Shape Tensiometer for contact angle measurements.
– Computer controlled liquid dispersing
– Temperature controlled table
– Range 10º to 180º ± 0.3º
The contact angle is the angle formed by a liquid at the three phase contact line where a liquid, gas and solid intersect. The shape of the drop is controlled by the three forces of interfacial tension shown in the figure. The contact angle is a quantitative measure of the wetting of a surface by a liquid. It can also be used as a control measure in surface treatment and cleanliness.
Ring and Plate Tensiometer TensioCAD$1
The TensioCAD is a semi-automatic Du Noüy Ring and Wilhelmy Plate Tensiometer for the measurement of Surface Tension and Interfacial Tension.
Oscillating Drop and Bubble Analyzer ODBA-1 for PAT-1 Tensiometer$1
Oscillating Drop and Bubble Analyzer for dilational elasticity and viscosity determination
Drop and Bubble Shape Optical Tensiometer PAT-1$1
The Drop and Bubble Tensiometer PAT-1 uses a modern optical method to measure the dynamic Surface Tension and Interfacial Tension of liquids, 0.1 s resolution over a period of seconds up to days.
The instrument is supplied with a computer controlled dosing system.
Drop Pressure Module DPA-1 for PAT-1 Tensiometer$1
This Drop Pressure module is dedicated to measurements of Dynamic Interfacial Tensions of liquids.
Foam stability and lifetime Analyzer FA-1S$1
The Foam Analyzer FA-1S for the study of foam drainage and foam stability under strictly defined conditions.
Drop volume Analyzer for Dynamic Surface Tension and Interfacial tension of liquids$1
The DVA-1 Drop Volume Tensiometer is a classical method to measure the surface and interfacial tension of liquid.
BPA-1S Bubble Pressure Tensiometer$1
The BPA-1S Maximum Bubble Pressure Analyzer is the choice for very short adsorption times.
Interfacial Shear Rheometer ISR-1$1
The ISR-1 Interfacial Shear Rheometer allows the measurement of interfacial shear elasticity and viscosity of layers between two fluids (liquid/liquid or liquid/gas).