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Plasticizer is a material, which on addition to a resin, decreases the accumulation of
intermolecular forces along the polymer chain. Mostly used plasticizers include
dioctyl sebacate and dioctyl phthalate. To reduce the cost and the enviornmental
pollution, different types of natural oils are used as plasticizers.
In the preparation of pye samples, pye powder was mixed with calcium carbonate,
lead stearate, carbon black and wax. Then soya oil and epoxidised soya oil were
mixed separately as plasticizers to prepare two different samples. Fusion behaviour
of these mixtures was checked using Brabender plastogram. Pv C sheets were
prepared from the mixtures using the hot press and their technological properties were
investigated
From the results we can decide that the presence of a plasticizer decreases the fusion
time and the tensile strength.
