| Course label : | Advanced characterisation techniques of dispersed materials |
|---|---|
| Teaching departement : | CMA / |
| Teaching manager : | Madam VERONIQUE RATAJ |
| Education language : | |
| Potential ects : | 0 |
| Results grid : | |
| Code and label (hp) : | ENSCL_CI_M9_B2_3 - Techn. caract. syst. dispersés |
Education team
Teachers : Madam VERONIQUE RATAJ / Mister JEAN-FRANCOIS DECHEZELLES
External contributors (business, research, secondary education): various temporary teachers
Summary
1. Determine the phase inversion temperature of an emulsion using conductivity and rheology. 2. Determine the diffusion coefficient of SDS (sodium dodecyl sulphate) using DOSY NMR. 3. Measure a contact angle using the static drop method. 4. Measure the interfacial tension between two liquids using the pendant drop method. 5. Study the influence of process variables on the drop size of an O/W emulsion. 6. Measure particle size using laser granulometry (static and dynamic light scattering (DLS)) 7. Measure the Zeta potential of particles.
Educational goals
At the end of these practical work sessions, students will be able to perform the physico-chemical measurements most frequently used in formulations to characterise liquid/liquid and solid/liquid interfaces: Students will therefore be able to: - Measure the phase inversion temperature of an emulsion (using conductivity and rheology). - Measure a contact angle using the static drop method, with the aim of determining the solid's surface energy. - Measure the interfacial tension between two liquids using the pendant drop method. - Measure the size of particles using laser granulometry ((static and dynamic light scattering [DLS]), and know the best-suited technique (advantages and disadvantages). - - Measure the Zeta potential of particles.
Sustainable development goals
Knowledge control procedures
Continuous Assessment
Comments: Submit a report
Online resources
1. Rosen, M. J. "Surfactants and interfacial phenomena". (Wiley-Interscience, 2004). 2. Salager, J.-L., Antï¿œn, R. E., Anderez, J. M. & Aubry, J.-M. "Formulation des micro-ï¿œmulsions par la mï¿œthode HLD" (Formulation of microemulsions using the HLD method). Encyclopedia Tech. Ingï¿œn. Vol Gï¿œnie Procï¿œdï¿œs 157 (2001) (Engineering techniques encyclopedia, process engineering volume). 3. Lindman, B., & Friberg, S. E. "Microemulsionsï¿œa historical overview. Handbook of microemulsion science and technology." Basel, New York: Dekker, 1-12. (1999) 4. Anton, R., Salager, J.-L. & Aubry, J.-M. "Formulation des Emulsions par la Mï¿œthode du HLD" (Formulation of Emulsions using the HLD Method). Ed Tech. Ing. (2001) (Engineering techniques edition).
Pedagogy
For this course, the teacher and students constantly interact for the entire duration of the practical work.
Sequencing / learning methods
| Number of hours - Lectures : | 0 |
|---|---|
| Number of hours - Tutorial : | 0 |
| Number of hours - Practical work : | 16 |
| Number of hours - Seminar : | 0 |
| Number of hours - Half-group seminar : | 0 |
| Number of student hours in TEA (Autonomous learning) : | 0 |
| Number of student hours in TNE (Non-supervised activities) : | 0 |
| Number of hours in CB (Fixed exams) : | 0 |
| Number of student hours in PER (Personal work) : | 0 |
| Number of hours - Projects : | 0 |
Prerequisites
Basic organic chemistry and the Physico-Chemistry of Formulations course 7.2.1 in semester 7