Microstructure, mechanical properties, and flame retardancy of nanoclay-incorporated polyurethane flexible foam composites

摘要

The present work seeks to investigate microstructure, mechanical properties, and flame retardancy of polyurethaneanoclay flexible foam composites. In this regard, we prepared various nanocomposites with and without nanoclay and observed the resulting morphologies to correlate them with the other corresponding characteristics. The results provided support for the fact that tensile strength and compression set will increase with nanoclay content, while elongation at break and tear strength decrease to some extent. Flame-retardancy test results showed that the introduction of nanoclay into the polyurethane flexible foam causes an almost optimal trend in the flame retardancy over clay content. The microcellular-properties correlations were established on account of changes in microcell architecture. J. VINYL ADDIT. TECHNOL., 22:415-422, 2016. (c) 2015 Society of Plastics Engineers