Keyword: «composites»

Synthesized a new complex compound-ditsitratoborat guanidinium studied its composition, structure , physical and chemical properties using IR spectroscopy , thermal , X-ray diffraction and elemental analysis , conductivity , quantum-chemical modeling . Proven biocidal activity against Escherichia coli, Staphylo-coccus aureus, yeasts bioassay methods . On the basis of silicate (clay) and the Trans-Baikal Territory materials synthesized coordination compound obtained organic-inorganic composites in various ways (using mechanical activation and ultrasonic vibrations ), studied its properties. The present invention extends the range of antiseptic preparations , the resulting composite is promising a wide range of applications due to their sorption properties and biocidal activity : qualitative improvement of natural , domestic, wastewater , swimming pools, reservoirs , soil objects .

A study of the problem of developing effective methods for predicting the determining characteristics of composite materials and structures under the influence of extreme environmental factors has been conducted. The formulated problems are investigated within the framework of refined variational formulations of inverse forecasting problems based on modern provisions of the kinetic theory of strength. A methodology for matching the parameters of mathematical and physical models at micro- and macro-levels has been developed, which made it possible to solve the problem of restoring the parameters of physical and chemical processes occurring at the micro-level and leading to destructive changes in composites and deterioration of their characteristics over time. An objective assessment of the parameters of destructive chemical reactions in composites based on the conducted physical experiments made it possible to construct effective generalized models of durability for a long-term period, as well as to conduct a constructive analysis of the influence of individual extreme factors on the durability of composites.

Promising ways of expanding potential opportunities in improving the efficiency of methods for predicting the defining characteristics of composites (residual life, strength, durability) under extreme conditions are investigated. The study of modifications of the methods of searching for the global extremum of multiparametric functions, taking into account the structural features of the efficiency criteria used in the tasks of forecasting the defining characteristics of composite materials and structures made of them. One of the promising ways to increase potential opportunities is analyzed, associated with the improvement of methods for constructing optimal directions for finding the minimum of efficiency indicators associated with solving the problems of predicting the residual life of polymer composites under the influence of extreme factors.