The formulation and study of the thermal stability and mechanical properties of an acrylic coating using chicken eggshell as a novel bio-filler

- Smaller particle size of bio-filler showed better interfacial bonding.
- Smaller particle size of bio-filler showed uniformity in composition.
- Thermal stability improved with decreasing particle size of bio-filler.
- Bonding strength improved with decreasing particle size of bio-filler.