文摘
A comparative study of the effects of various nanoparticles introduced into polyetherimide Ultem-1000 (Sabic)—such as carbon nanofibers, nanocones/discs, halloysite hydrosilicate nanotubes, and quasispherical zirconia particles doped with yttria―on the mechanical behavior of nanocomposites is performed. The introduction of nanoparticles into the polymer increases the Young’s moduli and yield stress of block materials relative to those of the unfilled polymeric material. These effects make themselves more pronounced with an increase in temperature, especially when сarbon nanocones/discs are used as a filler. The collected data are commensurable with the electron-microscopic study of the morphology of the material and its densitometry measurements, which make it possible to estimate the values of excess free volume in the studied composite materials, as well as with the previous data on the incorporation of analogous nanoparticles into polypyromellitimide films.