CALCULATION OF NANOPARTICLE FILLER CONTENT IN SOLID OR LIQUID DISPERSIONS

Nano composites have unique properties which depend to a large extent on the quality of the nanoparticle dispersion. Different types of solid materials and solutions with nano-fillers are developed for many applications. An outstanding issue is the quantitative measure of fillers that are actually dispersed to dimensions below a particular aggregate size by the mixing processes. This is particularly important in dispersion of carbon nanotubes, which tend to form large scale aggregates. We have developed two variants of a method for evaluating the content of dispersed nano-sized particles using small angle X-ray scattering (SAXS).