Effect of Composition and Structure of Element Oxide Nanostructures Grafted at Polyethylene Film Surface on Electret Characteristics of thePolymer

Two-component element oxide nanostructures differing in composition and mutual arrangement of phosphorus and titanium oxide groups have been synthesized at the surface of high-pressure polyethylene films via the molecular layering method by treating the polymer with TiCl4, POCl3, and H2O vapors in predefined order. Using atomic force microscopy and thermally stimulated relaxation of the surface potential methods, it has been shown that the sequence of formation of element oxide structures in the two-component systems significantly effects the stability of the polyethylene electret properties.