Optimizing the effect of TiO₂ nano powder in water-based paint manufacturing using response surface methodology

The incorporation of titanium dioxide (TiO2) nano powder in water-based paint formulations significantly enhances properties such as opacity, UV protection, and durability. However, the challenge lies in optimizing these improvements while managing costs and ensuring environmental and health safety. This study employs Response Surface Methodology (RSM) to systematically analyse and optimize the concentration and particle size distribution of TiO2 nano powder in water-based paints. The study is aimed to maximize opacity and durability while minimizing potential health hazards and environmental impacts. Experimental results were fitted to quadratic models, and the optimal conditions were determined by solving the regression equations and analysing the response surfaces. The optimized formulation achieved a significant improvement in opacity (24% increase) and UV resistance (30% enhancement) compared to conventional water-based paints. Furthermore, the optimized nano powder dispersion demonstrated a decrease in volatile organic compound (VOC) emissions during drying, contributing to better indoor air quality. This research not only underscores the effectiveness of RSM in fine-tuning the properties of nano-enhanced paints but also sets a precedence for the eco-friendly and safe application of nanotechnology in paint manufacturing. Future studies are recommended to scale up the production process and evaluate the long-term environmental impacts of nano TiO2-enriched water-based paints.