The glass fiber rod is a composite material with glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as the reinforcing material and synthetic resin as the matrix material. The concept of composite materials refers to a material that cannot meet the requirements of use, and needs to be composed of two or more materials to form another material that can meet people's requirements, namely composite materials.
For example, although a single type of glass fiber has high strength, it is loose between the fibers and can only withstand tension, not bending, shearing and compressive stress, and it is not easy to be formed into a fixed geometric shape. It is loose soft. If they are glued together with synthetic resin, they can be made into a variety of hard products with a fixed shape, which can withstand tensile stress, but also withstand bending, compression and shear stress. This constitutes a glass fiber reinforced plastic matrix composite material.
Because its strength is equivalent to steel, it also contains glass components, and also has the same color, shape, corrosion resistance, electrical insulation, heat insulation and other properties of glass. Like glass, this easy-to-understand name "FRP" has been formed in history. This term was proposed by the former Minister of the Ministry of Building Materials Industry in 1958, and expanded from the building materials system to the whole country, and it is still widely used now. It can be seen that the meaning of FRP refers to reinforced plastics with glass fiber as a reinforcing material and synthetic resin as a binder. It is called glass fiber reinforced plastic in foreign countries. With the development of my country's FRP business, as a plastic-based reinforcement material, it has expanded from glass fiber to carbon fiber, boron fiber, aramid fiber, alumina fiber and silicon carbide fiber.