Rehbinder’s effect

Often one relates this type of stabilization to the so-called steric factor [48-51], the notion of which was introduced much later than Rehbinder s concept of lyophilic structural-mechanical barrier. Steric factor primarily reflects configurational elasticity of tails and loops of adsorbed macromolecules as well as osmotic effects. Steric factor represents only an entropic ( generally speaking, small) contribution to the elastic resistance of film, and by itself can not account for the strong stabilization. 

A dynamic numerical experiment was used to study the molecular mechanism of the Rehbinder effect using molecular dynamic simulation [71-74]. A numerical experiment allows one to observe tine details of the process being modeled. However, the experiment is limited in terms of the size of the system (up to 10 particles) and the observation time (for argon this time is 10" ° s). Consequently, processes involving a large number of particles, or processes that take place over periods significantly exceeding the maximum time of dynamic-type numerical experiments, can t be modeled. 

Physical-Chemical Mechanics of Disperse Systems and Materials contains seven chapters. Section I, with four chapters, presents the basics, starting from surface forces and the contact of particles with liquids. Chapter 2 is dedicated to adsorption phenomena, accumulation of surface-active molecules at various interfaces, and the importance of surfactant s adsorption on the contact between particles. The bulk properties of particle dispersions in liquids are discussed in Chapter 3 in terms of coagulation processes and the rheological behavior. Chapter 4 describes in a comprehensive way the stability of disperse systems and emphasizes the Rehbinder effect as an important mechanism in stable colloidal systems. Section II consists of three chapters. Chapter 5 provides an introduction to the methodology of mechanical testing Chapter 6 describes in detail the structures... 

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