Nanocomposites based on polycarbonate and ultrafine diamonds

Polymeric nanocomposites were prepared by direct mixing of ultrafine diamon ds with a PC melt, The structural and mechanical properties of the composit es were studied by small-angle X-ray scattering (SAXS) and tensile test tec hniques. The mixing process is accompanied by changes in the basic paramete r of fractal structure of ultrafine diamond powders and their intense deagg regation, which results in a sharp increase in the proportion of SAXS-detec table particles. The subsequent self-assembling of disintegrated particles into an infinite percolation cluster leads to a significant decline in the deformation properties of the composite even at small concentrations.