Abstract
Current environmental benign and flame retardant poly (vinyl acetate) (PVAc)/montmorillonite (MMT) clay nanocomposites were prepared by emulsifier free emulsion technique in microwave (MW) oven. MMT clay was incorporated as additional filler in PVAc/MMT nanocomposites to improve the homogeneity of the ‘physical’ barrier, since clay produces silicon-oxy-carbide (Si-O-C) char on heating. The fine dispersion of the MMT and the interactions between PVAc and clay created significant improvement of the flame retardancy which has been evaluated using cone calorimeter. The presence of clay in PVAc/MMT nanocomposites was characterized with infrared (IR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The fire retardancy of PVAc/MMT nanocomposites caused by the formation of Si-O-C char was characterized by scanning electron microscopy (SEM). The biodegradation property was tested by activated sludge water via water absorbency and was further confirmed from SEM for its better commercialization and ecofriendly nature.
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