| Abstract Scope |
This research investigates the development of phosphate glass fibers (PGF) for use as reinforcements in composite materials, aiming to meet the demand for lightweight, energy-efficient, and environmentally friendly alternatives. Two fiber series, composed of P₂O₅, MgO, K₂O, Al₂O₃, and Fe₂O₃, were produced via melt-spinning. Replacing K₂O with Al₂O₃, along with the addition of Fe₂O₃ and TiO₂, increased fiber density from 2.16 g/cm³ to 2.80 g/cm³ and improved chemical resistance by 99%. Tensile strength rose by 75%, reaching 2668 MPa, and the elastic modulus reached 140 GPa. Composites with 22.8% fiber content were fabricated, showing enhanced mechanical, thermal, and morphological properties. Scanning electron microscopy (SEM) confirmed uniform fiber dispersion in polyester and epoxy matrices without a coating agent. The study concludes that phosphate glass fibers significantly improve composite performance, offering great potential for applications in thermoset and thermoplastic composites. |