Abstract
In the work a method of obtaining highly dispersed zinc powders by electrolysis and comparison of the properties of zinc-rich compositions prepared using as a pigment zinc powders obtained by different methods is provided. Conducted measurements have shown that the electrical conductivity of zinc-rich coatings comprising electrolytic zinc powder does not inferior to the conductivity of the film with PZHD-0 powder obtained by the evaporation-condensation method, despite the significant difference in the amount of zinc pigment. On the basis of the received data one can conclude that the use of electrolytic zinc powder as a pigment will significantly save zinc.
Highlights
The main structural material of modernity is steel, which actively corrodes and requires anticorrosive protection
Electrolytic zinc powders are without doubt advantageous in terms of the properties of the pigment, as they are characterized by a branched structure and high degree of purity of the metal
The mean particle size after zinc removal from the cathode is substantially higher than that of powders obtained by metallurgical method; there requires an additional operation for grinding dendritic precipitation
Summary
The main structural material of modernity is steel, which actively corrodes and requires anticorrosive protection. The choice of the conditions to receive the electrolytic zinc powders for metal-rich compositions pigment to the composites. Electrolytic zinc powders are without doubt advantageous in terms of the properties of the pigment, as they are characterized by a branched structure and high degree of purity of the metal. The mean particle size after zinc removal from the cathode is substantially higher than that of powders obtained by metallurgical method; there requires an additional operation for grinding dendritic precipitation. The advantage of electrolytic method of producing dendritic metal precipitation is the ability to influence the dynamic of growth and structure of the particles, changing the composition of the solution, the amount of current or potential, or polarization mode. The aim of this study was in obtaining high-dispersed dendritic zinc precipitation and comparing the properties of zincrich compositions prepared using zinc as pigment powders obtained by different methods
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