An Overview of Glass Fiber Reinforced Plastic

  Glass Fiber Reinforced Plastic (GFRP), often referred to as fiberglass, is a composite material formed by combining a polymer matrix (typically a thermoset or thermoplastic resin) with glass fibers. This combination creates a versatile, high-performance material with a unique set of characteristics. Key features of GFRP include: (1) excellent corrosion resistance against a wide range of chemicals; (2) a high strength-to-weight ratio, making it light and strong; (3) good electrical insulation properties; (4) low thermal conductivity, contributing to its good thermal performance; and (5) excellent processability, allowing it to be molded into complex shapes. It also offers (6) great design flexibility. However, it has some limitations, including (7) a low modulus of elasticity compared to metals, (8) poor long-term temperature resistance beyond a certain point, (9) a tendency to experience aging from UV exposure, and (10) low interlaminar shear strength. The advantages of using glass fiber reinforcement in plastics are significant. It drastically increases the heat resistance of the base polymer, particularly in nylons. It also results in very low shrinkage and high rigidity in the final part. GFRP components are resistant to stress cracking and generally exhibit greatly improved impact strength. The reinforcement leads to high tensile, compressive, and flexural strength. Furthermore, with the addition of specific additives, GFRP can be made flame retardant.