Abstract
Coatings based on epoxy diane oligomer ED-20 are being developed as environmentally benign, foulingresistant marine coatings. Silver oxide and carbonate (mixture) was used as filler, the dispersion of which is 0.5 µm. It is proved that for the formation of composites with the improved physical and mechanical properties it is necessary to add Mechanical Mixture of Silver Carbonate and Oxide (MMSCO) in the amount of q = 0.050…0.250 pts. wt. into the epoxy diane oligomer ED-20 (100 pts. wt.). The obtained values of impact toughness of composites during the introduction of MMSCO into the binder increased by 2.5 times compared to the epoxy matrix. Moreover, the maximum capacity to resist impact loads, including fracture toughness, was demonstrated by the Composite Material (CM) with the filler content q = 0.050 pts. wt. Impact toughness of this CM is а = 18.53 kJ/m2. The developed materials and protective coatings based on them were used on the dry cargo ship Oles Honchar.
Highlights
The development of sea and river transport calls for improving production while reducing the cost of production, operation, rehabilitation, maintenance and repair of power equipment (Heller 1970; Zayed et al 2013; Atta et al 2008)
Epoxy composites filled with binders of various form, nature and dispersion characteristics ensure such properties as durability, chemical resistance to the marine environment, resistance to variable temperatures, low thermal conductivity, corrosion resistance compared to metal, when they are used in power equipment of maritime transport (Buketov et al 2015a, 2015b, 2016; Decò et al 2012)
It should be noted that filling the Composite Material (CM) with Mechanical Mixture of Silver Carbonate and Oxide (MMSCO) particles in the amount over q = 0.500 pts. wt. causes a decrease in the adhesive strength, and the value of the CM adhesion becomes approximated to the adhesion of the epoxy matrix
Summary
The development of sea and river transport calls for improving production while reducing the cost of production, operation, rehabilitation, maintenance and repair of power equipment (Heller 1970; Zayed et al 2013; Atta et al 2008). Epoxy composites filled with binders of various form, nature and dispersion characteristics ensure such properties as durability, chemical resistance to the marine environment, resistance to variable temperatures, low thermal conductivity, corrosion resistance compared to metal, when they are used in power equipment of maritime transport (Buketov et al 2015a, 2015b, 2016; Decò et al 2012). Despite a considerable amount of information about the research on the properties of epoxy composites, increasingly more attention has been paid to the practical application of such materials and study of their behavior in operation. The developed materials and protective coatings based on them are planned to be used on the dry cargo ship Oles Honchar with the deadweight of 6315 tons, which is operated under the influence of the aggressive river and sea environment
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