News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back Formation and aggregation of nanoparticles in chemical reactions S.V. Chuppina V.A. Zhabrev L.YU. Ammon V.I. Margolin S.I. Pugachiov In the article the authors synthesized the influence of additives on the surface properties of nanoparticles organosilicate coatings. It is shown that the form of nanoparticulate particles of sodium pyrophosphate and chromium dimensions greatly depend on the conditions of synthesis, and heat treatment. The use of synthesized fine sodium pyrophosphate as chrome pigments in coatings formulations decontaminated improves heat resistance, thermal plasticity, physical, mechanical, barrier properties соаtings. For example sol-gel hydrolysis of tetraethoxysilane PC simulate the aggregation process was maden and the factors that determine the size and shape of the nanoparticles were obtained. Keywords: Synthesis of nanoparticles and their aggregation, the nature of chemical bonding in silicon polyhedra, computer modeling of the hydrolysis of tetraethoxysilane, diffusion fluxes and mixing processes. Contacts: E-mail: vazabrev2009@rambler.ru Pp. 52-64.