Module catalogue

Formulation

576-3	Formulation				Materials and Chemistry				S8
Lessons : 14 h		TD : 7 h		TP : 0 h		Project : 0 h		Total : 21 h
Co-ordinator : Luc PICTON

Prerequisite
Basic knowledge about polymers
Course Objectives
Introduction to formulation: Scattered systems (suspension, emulsions, foams), rheology
Syllabus
Formulation: history, definition, specifications Presentation of attractive, repulsive forces at play, notion of stability/instability Thermodynamic and/or kinetic medium of action (Rheology) Scattered systems: colloidal stability, molecule or polymer adsorption, anchor point, steric and/or electrostatic stabilization. Sample study Emulsion: example, surface tension, Laplace law, wettability (Young-Dupré's law), tensioactives, role of tensioactives in formulation (emulsifier, stabilizer, detergent, foaming agent, wettability agent, rheological agent, agent transport). Sample study Rheology: context, definition, tools - Permanent mode or flow (Newtonian behavior, non Newtonian rheofluidifying or thickening, thixotropy, stress-threshold fluid. - Transitional mode (creep), - Dynamic mode (oscillations): linear viscoelasticity
Practical work (TD or TP)
Summary of the previous course presented by students at the beginning of the following course 10-minute presentations on a formulation chosen by a pair or a trinôme
Acquired skills
Base in formulation and on mechanisms and tools to control the stability and instability of dispersed systems and emulsions. Acquiring the basics in rheology
Bibliography
Techniques de l’Ingénieur