Effectiveness Of Conservation Of Materials Based On Organic Inhibitors

Authors

  • Gaidar S. M. , Pydrin A. V. , Naji N.A. , Fatma Shaaban , Yuri Sudnik

Abstract

Machine parts and components are exposed to various atmospheric factors during
operation. This contributes to the occurrence of corrosion processes on the surfaces, and the
reduction of the mechanical properties of the material. The objective of the study was to
determine effective conservation materials to prevent corrosion during inter-operational and
long-term storage. The article considers the main types of inorganic and organic corrosion
inhibitors, justifies the rational use of water-soluble corrosion inhibitors based on boric acid
esters and diethanolamine. The characteristics of the reagents required to obtain the
compound under study are given, and the synthesis technology with indication of the modes
is given. The reaction of ether and benzotriazole are described, and the formula of the final
product is given. To justify the choice of conservation materials and conduct a rapid
assessment of the protective properties of the studied compositions, electrochemical studies
were carried out, polarization curves were constructed and their analysis was carried out. This
analysis showed that boric acid and diethanolamine ether is an inhibitor of the anodic action,
the optimal protective effect is shown at a concentration of 5g/l. A further increase in
concentration leads to a slight increase in the protective effect, which is impractical from the
point of view of economy. Tests were also performed to determine the optimal contact time
of the metal surface with an inhibited aqueous solution. The results of these studies show that
with short-term contact, a high aftereffect coefficient is observed. Accordingly, short-term
contact is sufficient for preserving products, for example, rinsing surfaces or contact during
washing parts. It is concluded that Ester and Ester+BETA Inhibitors have a protective
effectiveness of more than 90% at a concentration of 10 g/l in an aqueous solution.

Published

2020-12-01

Issue

Section

Articles