Synthesis and Structure of Nanocomposites based on Linear Polymers and Nanoparticles of Titanium Dioxide

Abstract

Nanocomposites based on titanium dioxide and epoxy polymer nanoparticles have been obtained and investigated by the in situ method at the stage of curing with preliminary ultrasonic dispersion and evacuation. The composition and structure of the obtained TiO2 nanocomposites have been studied by IR spectroscopy and scanning electron microscopy. It is shown that with an increase in the content of nanoparticles, their average size increases to 88 nm at a TiO2 concentration of 1% as a result of secondary aggregation processes

Theoretical and Experimental Studies of the Impact of High-Speed Raindrops on the Structural Elements of Modern Technology

“…This transcendental equation defines a countable set of non-negative roots [ 6 , 24 , 25 ]. Then, using the proper form of from Equation (18), we attain: …”

“…Such high-velocity water droplet impact easily causes the erosion of windshields, antenna radomes, infrared windows and engine nacelles [ 1 , 2 , 3 , 4 , 5 ]. Especially for military aircraft, the problem of rain erosion is more serious, and the surface of the material will be eroded or even chipped [ 6 ]. Therefore, it is very important to evaluate the corrosion resistance of aircraft parts that are easily affected by water droplet impacts [ 7 ].…”