The effect of nickel oxide nanoparticles on the structure and properties of nanocomposites based on high-pressure polyethylene containing multiwalled carbon nanotubes

Abstract

Due to the unique properties of modern nanomaterials, many companies design complex electronic devices that are used in the aviation and space spheres to assemble powerful computers, video equipment, help diagnose various diseases, as well as quickly transmit information. Such nanostructured materials are obtained by embedding nanoparticles into various polymer matrices. The effect of nickel oxide nanoparticles (NiONPs) stabilized by a matrix of high-pressure polyethylene (LDPE) obtained by the mechanochemical method on the structure and properties of nanocomposites based on high-pressure polyethylene (LDPE) containing multiwalled carbon nanotubes (MWCNT) has been studied. The physical-mechanical, thermophysical and thermal properties of the obtained composites were studied using DTA and AFM analysis methods. The optimal composition of components for obtaining nanocomposites with improved properties has been determined. Shown that small amounts of nanofillers introduced into the polymer play the role of structure formers - artificial crystallization nuclei, which contributes to the appearance of a fine spherulite structure in the polymer. AFM micrographs show the complex interweaving of nanoparticles with each other and the polymer matrix and the formation of a new fine-crystalline supramolecular structure related to the interfacial interaction of nickel-containing nanoparticles with multilayer carbon nanotubes, which contributes to the maximum increase in the physical-mechanical and thermal properties of the resulting nanocomposite.