Возможности усиления термо- и химстойкости эпоксикомпозитов, а также адгезии к стали и других прочностных свойств в зависимости от удельной поверхности нанокремнезёмов в ряду 60 - 450 м²\г, при 1 мас% наполнения

The influence of nanosilica (a known thickener of paints and plastics) on a number of performance characteristics of Epoxy-composite was studied. An increasing of of thermal (one-way heating in air) and chemical resistance (example of swelling in ether-acetate solvent) with the introduction of 1 wt% of nanosilica has been established. Starting from 120 m2 / g, the introduction of nanosilica allows to increase the adhesion to steel by 1.3-1.7 times. At the same time, after filling, there is no significant change in compressive strength and shear adhesion to steel. The specific surface area of SiO2 influences the shape of the compression fracture diagram, changing its character from the plastic two-step (for an unfilled and for 1% A-455, 455 m2 / g) to an elastic (for 200 m2 / g)

epoxy polymer, silicon dioxide (aerosil А50, specific surface area, adhesion, compression load, diagram, swelling, lifetime, heat resistance

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