Development, structure and strength properties of PP/PMMA/FA blends

A new type of flyash filled PP/PMMA blend has been developed. Structural an d thermal properties of flyash (FA) filled polypropylene (PP)/polymethyl me thacrylate (PMMA) blend system have been determined and analysed. Filled po lymer blends were developed on a single screw extruder. Strength and therma l properties of FA filled and unfilled PP/PMMA blends were determined. Addi tion of flyash imparted dimensional and thermal stability, which has been o bserved in scanning electron micrographs and in TGA plot. Increase of flyas h concentration increased the initial degradation temperature of PP/PMMA bl end. The increase of thermal stability has been explained based on increase d mechanical interlocking of PP/PMMA IA chains inside the hollow structure of flyash.