Dispersion of Nano CaCO3 on PVC and its Influence on Mechanical and Thermal Properties

Abstract

PVC/nano CaCO₃ composites were prepared on Brabender Plasticorder. For comparison purposes, commercial CaCO₃ composites were also prepared. Characterization of the nano CaCO₃ and nanocomposites were done using scanning electron microscope (SEM) and transmission electron microscope (TEM). Their mechanical and thermal properties were also studied. Exfoliation was observed with the addition of different sizes of nano CaCO₃ filled in PVC composites. Best properties were observed with 9 nm CaCO₃ PVC composites. Tensile strength and modulus improved significantly even though the amount of addition of nano filler is low. Thermal properties of PVC/nanocomposites were found to be better compared to that of commercial filled CaCO₃ in PVC composites.

Keywords

PVC nano CaCO3 SEM TEM mechanical properties thermal properties.

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