Synthesis and barrier properties of a film polymer nanocomposite based on polystyrene and cadmium sulfide nanoparticles

Abstract

A film polymer nanocomposite with nanoparticles of a chalcogenide semiconductor, CdS, in a polystyrene matrix was prepared on the surface of 08kp steel. The barrier properties of the synthesized two-layer film nanomaterial in a 3 wt % aqueous NaCl solution were evaluated by measuring the electrode potential of coated and uncoated specimens and were compared with those of polymer films without nanofiller and with Fe₃O₄ nanoparticles. Introduction of hydrophobic CdS nanoparticles into the polymer matrix leads to significant enhancement (by ∼20%, as compared to Fe₃O₄) of the barrier properties of the polymer nanocomposite.