A model of gravity-induced distribution of material in plasma polymerized aerosols and films.
A mathematical model of the volumetric part of plasma polymerization influenced by gravity is presented. Plasma-activated adhesion of monomer molecules to a surface of a germinal particle is assumed as a basic mechanism of particulate growth. The continuity equation for the flow of matter through the discharge has been formulated and solved in two extreme asymptotic approximations--for small and major duration of the process. Several non-equilibrium distribution functions of the polymer were obtained, for instance, an amount of the particles as a function of their size or time of fall. Within the adopted model this function demonstrates a sharp downward increase inside a discharge. In addition it contains such parameters as the free fall acceleration or reaction rate coefficients, variations of which enable control of the discharge and properties of the disperse medium.
Zyn
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Samara State University of Architecture and Civil Construction, 194 Molodogvardeyskaya St., 443001, Samara, Russia. zyn37@mail.ru
D000336:Aerosols / Q000737:chemistry*; D000465:Algorithms; D004058:Diffusion; D006112:Gravitation; D008962:Models, Theoretical; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*; D013997:Time Factors
D000336:Aerosols; D011108:Polymers; D013501:Surface-Active Agents