INFLUENCE OF SYNTHESIZED POWDER TITANIUM-ALUMINUM CHARGE ON MECHANICAL PROPERTIES OF EPOXYCOMPOSITES FOR SEA AND RIVER TRANSPORT

Abstract

It has been demonstrated that in order to improve anticorrosive properties and wear resistance of sea and river transport, military equipment, vehicle manufacturing, chemical, oil refining and gas industries, the utilization of polymeric epoxycomposite protective coatings is required. Polymer operational properties, including epoxy, composite materials and protective coatings based on them, have been improved due to introduction of pulverulent nano-and microdispersed fillers. ED-20 epoxy diane oligomer, PEPA polyethylene polyamine hardener and microdispersed particles synthesized by high-voltage electrical discharge powder titanium aluminum charge have been utilized to form composite materials and protective coatings used in transport industry. The relationship between the content of microdispersed powder and adhesive, stress-related properties and residual stresses of epoxy composites has been investigated. It has been proved that in order to form a composite material or protective coating with improved adhesive and cohesive properties, the desirable particle content is to be 0.05...0.50 wt.h. per 100 wt.h. of ED-20 epoxy oligomer. The advantage of the current development over foreign alternatives and those produced within the country is that it is possible to consider the main factors of corrosive environments where processing equipment is being operated, and development of materials, possessing high stress-related, heat-transfer, corrosion and wear resistance properties. Given this, an interaction-active microdispersed filler synthesized by a high-voltage electrical spark discharge has been introduced into the epoxy binder. By doing so, it is of essential importance to determine the critical content of the synthesized by high-voltage electrical discharge titanium-aluminum microdispersed powder charge during formation of protective epoxy coatings for sea and river transport.