2134/25775
Alma J. Mendoza
Alma J.
Mendoza
Eduardo Guzman
Eduardo
Guzman
Fernando Martinez-Pedrero
Fernando
Martinez-Pedrero
Hernan Ritacco
Hernan
Ritacco
Ramon Rubio
Ramon
Rubio
Francisco Ortega
Francisco
Ortega
Victor Starov
Victor
Starov
Reinhard Miller
Reinhard
Miller
Particle laden fluid interfaces: Dynamics and interfacial rheology
Loughborough University
2017
Particle laden interfaces
Diffusion coefficient of trapped particles
Interfacial dilational and shear rheology
Interfacial microrheology
Rheology of particle–surfactant monolayers
Chemical Engineering not elsewhere classified
2017-07-13 13:00:15
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Particle_laden_fluid_interfaces_Dynamics_and_interfacial_rheology/9240290
Wereviewthe dynamics of particle laden interfaces, both particlemonolayers and particle+surfactantmonolayers. We also discuss the use of the Brownian motion of microparticles trapped at fluid interfaces for measuring the shear rheology of surfactant and polymer monolayers. We describe the basic concepts of interfacial rheology and the
different experimental methods for measuring both dilational and shear surface complex moduli over a broad range of frequencies, with emphasis in the micro-rheology methods. In the case of particles trapped at interfaces
the calculation of the diffusion coefficient from the Brownian trajectories of the particles is calculated as a function of particle surface concentration.We describe in detail the calculation in the case of subdiffusive particle dynamics. A comprehensive review of dilational and shear rheology of particle monolayers and particle+surfactant monolayers is presented. Finally the advantages and current open problems of the use of the Brownian motion ofmicroparticles for calculating the shear complex modulus of monolayers are described in detail.