MICROSTRUCTURAL ANALYSIS OF SiO_2/POLYETHYLENE NANOCOMPOSITES ON LOCAL AND MACROSCOPIC SCALES

摘要

High density polyethylene filled with nano-SiO_2 of different surface modification and content is investigated by nanoindentation, microindentation, scratching and dynamic mechanical thermal analysis. The results of the nanoindentation are compared with respect to more macroscopic measurements in order to obtain information if the surface modification and/or the filler content significantly changes the material properties on a local scale.