Goniometer analysis of surface tension / interfacial tension
Your need: carry out a Goniometer analysis to measure surface tension or interfacial tension
What is surface tension or interfacial tension?
Surface tension is also known as interfacial tension. It refers to the surface energy created by the interaction of molecules at the surface of a liquid. This surface energy is due to the electrical attraction forces that hold adjacent molecules together.
When the condensed phase is a liquid and its environment is air, the term interfacial tension is used. When the condensed phase is a solid, and its environment a reference liquid (water or other), the term surface tension is used.
The goniometer in a few words
Why carry out a goniometer analysis?
Surface tension measurement helps us understand the molecular interaction between liquids and solids. This measurement reflects a liquid’s ability to adhere to a solid surface, such as a coating or substrate. Measurement with a goniometer is used to measure the contact angle formed between a solid and a liquid.
The surface tension measurement can reveal the adhesive properties of a liquid, which are used in many industrial applications, such as paints, cleaners, food additives, and many others. It is also a measurement technique used in the study of material wettability.
The surface tension measurement makes it possible to characterize the surface properties of materials__, providing valuable physical data, particularly in cosmetic formulation and in inks.
FILAB: laboratory for goniometer surface tension analysis
Why choose FILAB for goniometer expertise?
In order to support manufacturers in the development and quality control of their products, the FILAB laboratory provides a state-of-the-art analytical platform for carrying out goniometer expertise.
This equipment can be used in combination with other analytical techniques.
Our technical resources: Goniometer
The droplet dimensions provide information on intermolecular forces and make it possible to calculate surface tension in mN/m.
The angle formed between the drop and the material provides information on the hydrophilic nature of the material studied. The lower the measured angle, the more hydrophilic the material is.
For certain applications such as bonding or printing, the absorption rate of a liquid on its substrate is a critical parameter.
Dynamic contact angle measurement then tells us about the spreading speed or absorption rate of the material analyzed. As with the static measurement, a drop is deposited on the surface of the material. The evolution of its contact angle is then measured by capturing one image every millisecond for a period of up to 10 minutes.
Our surface tension analysis services
Measurement of drop size by laser granulometry
Surface energy measurement
Drop angle measurement
Measurement of adhesion between a liquid and a solid
Characterization of droplet distribution by SEM-FEG-EDX
Measurement of a material's surface wettability
Static and dynamic drop angle measurements
Our FAQ
To get a goniometer expertise quote from the FILAB laboratory, you can contact our teams via our contact form, by phone, or by email.
All you need to do is send us your requirements (material type, analysis requested, any applicable standard, urgency, number of samples, etc.). We will then send you a personalized technical and pricing proposal within 24-48 hours.
Turnaround times vary depending on the nature of the analysis and the complexity of the expertise project.
However, FILAB is committed to providing fast turnaround times tailored to your constraints and industrial urgencies.
One of the most commonly used tools for measuring surface tension is the goniometer. This method is used primarily to assess the properties of liquids and solids in terms of wetting and adhesion. It provides essential information about the surface properties of materials. The goniometer can be used to determine surface wettability, evaluate surface roughness, spreading, and even the viscosity of liquids, in correlation with other techniques.
To measure surface tension, there are several technical methods, including contact angle analysis. This is a scientific method used to understand the interaction between a solid surface and a liquid through various technical means: pendant drop, mobile wire, Wilhelmy, and ink tests. For this purpose, tensiometers and goniometers are used.
A tensiometer is used to measure the surface tension of a liquid, while a goniometer is used to measure the contact angle of a liquid on a surface.Tensiometers measure the interfacial tension between two phases, often between a liquid and air or a liquid and a solid, while goniometers are used to measure the contact angle of a solid with a liquid.
Tensiometers are often used in chemistry to measure the physical properties of foams and emulsions, while goniometers are used in physics to measure the properties of solid surfaces.
Measuring the surface tension of a liquid is an essential procedure for characterizing the physical properties of fluids. It is particularly useful in sectors such as chemistry, pharmaceuticals, and materials.
Surface tension is a measure of the cohesive force between molecules at the surface of a liquid. It is generally expressed in newtons per meter (N/m) or dynes per centimeter (dyn/cm). This property affects the behavior of the liquid in various contexts, including wetting, droplet formation, and the stability of emulsions.
