Mechanical and Dynamic Analysis of Poly (Vinyl Alcohol)-Modified Inorganic Filler Composite

摘要

A study of polymer-acid-modified Red mud composite (PRC) was done using a polymer matrix of poly (vinyl alcohol) (PVA) and layered Red mud as reinforcing agent. Composite materials were prepared by effectively dispersing the PVA matrix into the inorganic layered modified Red mud via a conventional solvent-casting technique. The PRC materials, as synthesized, were typically characterized by Fourier-Transformation infrared (FTIR) spectroscopy. The nature of the PRC films was investigated by means of X-ray diffraction. The dispersion of modified filler in the polymer matrix was investigated by TEM analysis. To study the temperature dependencies of the dynamic modulii, stress relaxation, mechanical loss, and damping phenomena of the composite material, dynamic mechanical analysis (DMA) was done. The tensile behavior of the composite films was analyzed by comparing their tensile strength and their modulus of elasticity with change in filler content.