EFFECT OF PIGMENT CONCENTRATION ON OIL PAINT FORMULATED WITH POLYSTYRENE PYROLYSIS OIL AS A BINDER
Abstract
This study investigates the effect of pigment concentration on oil paint formulated using polystyrene pyrolysis oil (PPO) as a binder. Waste polystyrene was subjected to pyrolysis to obtain a liquid binder, which was then used to produce oil paints with varying pigment concentrations (0.5–4.0 g). The formulated paints were analyzed for viscosity, pH, drying time, flexibility, adhesion, water resistance, and gloss. Results revealed that increasing pigment concentration led to a rise in viscosity and acidity, while drying time decreased. All samples showed excellent flexibility, adhesion, and water resistance. However, the best gloss and surface smoothness were achieved at 0.5 g and 1.0 g pigment concentrations. The findings demonstrate that polystyrene pyrolysis oil can serve as a viable eco-friendly binder in oil paint formulation.
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