Thermal and Thermomechanical Properties of Organic-Inorganic Nanocomposites Prepared from Polyurethane Network and Mesoporous Silica Nanoparticles

Abstract

Polyurethane (PU) networks based on poly(dimethylsiloxane) (PDMS) and hyperbranched polyester (HBP) possess unique properties such as chemical stability, good thermal behavior, good surface and mechanical properties, making these materials good candidates for coating applications. The silica addition in polymer typically leads to a significant improvement of mechanical and thermal properties due to good filler dispersion, good compatibility with the matrix, and the presence of a strong interaction between reinforcements and the polymer matrix.