Abstract
High-performance polymer matrix composites are fabricated to endure huge thermal and mechanical stresses, which express admirable properties of the matrix. Among various thermoplastic matrices, plastic polypropylene is chosen due to its versatile nature, and to further improve its structural application, filler fly ash is encapsulated into it. The filler fly ash and matrix polypropylene were mixed in a twin-screw extruder and a microinjection molding machine was used for final sample fabrication of fly ash-reinforced polypropylene (PPFA) composites. Homogeneous mixing of matrix polypropylene and filler fly ash plays a crucial role in describing a composite’s properties as the particles of fly ash get agglomerated due to the presence of van der Waals forces, which causes difficulty in proper dispersion and alignment in the matrix PP. Direct incorporation of fly ash particles in the matrix leads composites to poor mechanical and strong thermal performances. An alternative approach of coating the fly ash surface by some coupling agents was applied to enhance the properties of the formed PPFA composite. This coating of filler was further verified by Fourier-transform infrared spectroscopy and energy dispersive spectroscopy.
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