Flow curve analysis

Objective of the analysis

Flow curve analysis is used to assess the rheological behavior of a product under different shear stresses. It provides information on the dynamic viscosity, fluidity, thixotropy, or plasticity of a fluid, suspension, or semi-solid product. It is an essential tool in formulation, quality control, and industrial process optimization.

In particular, it allows:

• Characterize the complete rheological profile of a fluid (viscosity vs. shear curve)
• Determine whether a fluid is Newtonian, pseudoplastic, dilatant, or plasticizing
• Identify a yield point or phase transition
• Study the stability of a product's structure (thixotropy, hysteresis)
• Compare formulations or track the evolution of a product over time

Methodology

The sample is subjected to a rise and fall of shear stresses in a rheometer. A flow curve to observe the product's response to these stresses.

• Speed ​​or constraint controlled mode
• Fixed or variable temperature measurements
• Cone-plate cells, concentric geometry or parallel plates depending on the nature of the sample

Affected matrices

• Cosmetics: creams, gels, milks, pastes, clays
• Food: sauces, purees, jams, dairy products
• Pharmaceutical products: syrups, ointments, semi-solid excipients
• Technical products: glues, paints, inks, liquid polymers

Industrial applications

• Control of the texture or stability of a product
• Packaging optimization (filling, pumping, extrusion)
• Development of formulations with targeted application properties
• Aging or physical stability studies
• Validation of functional specifications (fluidity, durability)

Why choose YesWeLab?

YesWeLab connects you with laboratories specializing in applied rheology. Our partners have state-of-the-art equipment (rotational rheometers, high-sensitivity sensors) to perform customized analyses under real-world conditions. You can specify the shear ranges, temperature, and kinetics desired for your studies.

Our platform allows you to quickly order your analyses, track the status of samples, and receive results interpreted according to your quality or R&D requirements.

Useful related analyses :

• Viscosity analysis
• Consistency analysis