ADAPTIVE ABRASIVE COMPOSITES BASED ON PHTHALONITRILE BINDER

Abstract

An approach to the synthesis of composites capable of adaptive behavior in the contact zone by the mechanism of reverse change in the grafting density of functional groups of the polymer binder to the surface of filler particles is proposed. The influence of technological synthesis parameters and the action of external factors, in particular ultrasonic vibrations, on the degree of the above-mentioned adsorption grafting, and accordingly on the reverse change in the stiffness of the composite, which provides the effect of reaction reinforcement, or adaptation of the abrasive composite during its operation, have been studied. The advantages of the obtained adaptive composites compared to traditional ones in terms of tool performance, wear resistance, and parameters that determine the condition of the processed surfaces are shown.