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The results of accelerated tests on the influence of climatic factors on the operational and technical parameters and characteristics of carbon fiber reinforced plastics are presented, among which the main attention is paid to thermal and moisture aging, thermal aging, joint periodic changes in temperature and humidity, as well as immersion in water on the state of polymer composite materials in order to check physical and mechanical properties and improving their quality. The results of the experimental studies made it possible to establish how much and in what direction the strength characteristics of the materials under study changed as a percentage of the initial value. Ref. 24. Tab. 6.

The article considers analysis of technologies and equipment used for dispersion of micro and nanoparticles. Various methods of preparation of disperse suspensions and colloidal solutions containing nano-particles are described. A summary of the performance of the methods, i.e. the size of the particles after treatment by a method, is presented. Advantages and technological possibilities of methods on specific scientific and applied tasks are considered. Specific attention is paid to the statistical data on the number of methods and their application in research, which is important for the formation of their priority list on the criterion of demand. Separately, the article considers a new method of ultrajet dispersion, which can take its place in the questions of obtaining suspensions and solutions with specified particle sizes. The article is an overview and may potentially be of interest to a wide range of readers addressing the issue of liquids dispersion, as it contains some background data and experience f previously conducted studies.

The article deals with the application of new methods and approaches for machining of carbon plastics on the basis of the analysis of foreign information sources with a search depth of five years. The complex problems of composite materials processing, in particular, carbon plastics, the solutions of which have not yet been found in full, are noted. Applying of new methods of hole formation, part milling, hydro-abrasive and laser processing allows to obtain new output quality indicators is pointed out. The implementation of considered methods, developed by foreign scientists, may supplement the tools arsenal and technologies of composite materials processing at domestic enterprise. The importance of quality assurance of composites` complex surfaces processing and formation in aircraft and aerospace engineering, where utilization level of this material is constantly increasing, is indicated.