Complex liquids: understanding, measuring and controlling

complex liquids – suspensions, emulsions, gels, colloidal solutions – often exhibit non-linear and multi-physical behaviors. Their handling and performance depend on parameters such as viscosity, stability, structuring and phase interactions.

At Rheonis, we support manufacturers in the characterization, optimization and control complex liquids to ensure the quality, performance and durability of your products and processes.

Our services for complex liquids

Rheonis offers a comprehensive approach, ranging from measurement to industrial support:

• Rheological characterization : viscosity, elasticity, behavior under shear and oscillation.
• Structural and microstructure analysis : particle organization, phase interactions.
• Stability study : sedimentation, phase separation, coalescence, flocculation.
• Formulation optimization : concentration adjustment, surfactants, polymers and additives.
• Process support : stirring, pumping, filling, mixing and transporting.
• Support for innovation : development of new formulations, pilot tests and multi-physical interpretation.

Measurements and analyses carried out

To understand and anticipate the behavior of complex liquids, Rheonis mobilizes:

• Rheology and flow : viscosity measurements, storage/loss modulus, creep.
• Physical chemistry : pH, conductivity, zeta potential, interfacial interactions.
• Dynamic behaviors : response to process constraints (agitation, shearing, pumping).
• Stability properties : turbidity, sedimentation, phase separation, coalescence.
• Microstructural analysis : optical observation, imaging and particle distribution.

Industrial applications

Complex liquids are at the heart of many sectors:

• Cosmetics : creams, lotions, gels and emulsions for skin and hair.
• Food : sauces, fortified drinks, functional suspensions.
• Pharmaceutical : liquid formulations, drug suspensions, gels.
• Chemistry and materials : paints, inks, varnishes, functional coatings.
• Technical industry : complex lubricants, fluids with specific properties.

Associated industrial processes

• Mixing and stirring
• Pumping and fluid transfer
• Filling and packaging
• Homogenization and emulsification
• Heat treatment and stability control

Rheonis added values

• Interdisciplinary expertise : rheology, physical chemistry, mechanics and tribology.
• Tailor-made approaches adapted to specific formulations and processes.
• Performance optimization : stability, processability, texture and sensoriality.
• Strategic support : product innovation, industrialization and sustainability.

Would you like to discuss your issues directly with our specialists? Do not hesitate to leave us a message, we will respond within 48 hours maximum.