New coating formulation based on synthesized benzodiazepine derivatives as double function additives for industrial application.

Purpose: The purpose of this study is to develop a new protective coating formulation for industrial use, using benzodiazepine derivatives as double function additives. Design/methodology/approach: Benzodiazepine's derivatives of types (3–5) were prepared and confirmed by infrared, Mass, ¹H-Proton nuclear magnetic resonance (NMR) and ¹³C NMR spectra. The synthesized compound was physically incorporated in the alkyd paint formulation by pebble mill grinding until all particulates are smaller than 20 ums. The prepared coatings were applied by air spray on steel panels. The physical, mechanical characteristics, corrosion resistance and antimicrobial test of the prepared coatings were studied to evaluate the prepared compounds drawbacks. Findings: The results of the mechanical and physical properties of the paint formulation revealed that the paint formulation incorporating benzodiazepines derivatives 3–5 performed best and improved corrosion-resistance and antibacterial activity tests. Research limitations/implications: In alkyd paint, heterocyclic compounds are the most used antibacterial additives. Other functionalities of these compounds, such as corrosion inhibitors, might be studied to see if they are suited for these applications. Practical implications: Because of the activity of various benzodiazepine derivatives, which may be attributable to the presence of some function groups such as sulfonamide aromatic amino NH₂ group, and elements such as Sulphur, Nitrogen, Chlorine, in its chemical structure. As a result, paint compositions including these compounds as additives can be used as dual-purpose paint and for a variety of industrial applications. Originality/value: The research demonstrates how a low-cost paint composition based on synthesized benzodiazepine derivatives 3–5 may be used as a dual-function paint for industrial use. [ABSTRACT FROM AUTHOR]