Abstract
Polymeric nanocomposite films with superparamagnetic Fe3O4 nanoparticles in polystyrene or poly(methyl methacrylate) matrices on the surface of 08kp steel were prepared. The adhesion of the synthesized two-layer film nanomaterials and their barrier properties in 3 wt % aqueous NaCl solution were studied in comparison with the unfilled polymer films. Adequate mathematical description of the influence of the nanoparticle concentration (0–10%) on the adhesion of the polymeric nanocomposites was made. The barrier properties of the polymeric nanocomposite films were evaluated by measuring the electrode potentials of the uncoated and coated specimens. Based on the experimental data obtained, the following nanocomposite was suggested as material for film deposition: poly(methyl methacrylate) + 5.6 wt % Fe3O4 with the nanoparticle size of approximately 10 nm. Films of this material ensure high adhesion (100%) and sufficiently good (86%) barrier properties.
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