Synthesis and thermal studies of flexible polyurethane nanocomposite foams obtained using nanoclay modified with flame retardant compound

摘要: This work presents thermal studies of nanocomposites based on the flexible polyurethane (PU) matrix and filled using montmorillonite organically modified with organophosphorus flame retardant compound. Flexible PU nanocomposite foams were prepared in reaction carried out between reactive alcoholic hydroxyl isocyanate groups ratio NCO to OH equal 1.05. The amount an organoclay ranging from 3 9 vol% was added polyol component resin before mixing isocyanate. apparent density 0.066 0.077 g cm−1. Thermal properties investigated by thermogravimetry dynamical mechanical analysis. Glass transition temperatures (T g) defined as maximum peak tanδ curve. decomposition observed at 310–320 °C (calculated onset TG curve). Tensile strength determined test. microstructure nanoparticles composites X-ray diffraction. Finally, it confirmed that depend nanoclay.