The concept of composite material means that a material cannot meet the requirements of use and needs

Two or more materials are combined to form another material that meets people’s requirements, namely composite materials. For example, a single type of glass fiber, although high in strength, is loose between fibers, can only withstand tensile forces, cannot withstand bending, shearing, and compressive stress, and is not easily formed into a fixed geometry, and is a soft body. If they are bonded together with synthetic resin, they can be made into a variety of rigid articles with a fixed shape that can withstand tensile stress and withstand bending, compression and shear stress. This constitutes a glass fiber reinforced plastic matrix composite. Because its strength is equivalent to steel, it also contains glass components, it also has the color, shape, corrosion resistance, electrical insulation, heat insulation and other properties of glass. Like glass, it has historically formed this easy-to-understand name “FRP”. This term was proposed by the former Minister of Construction and Materials Industry Lai Jifa in 1958 and expanded from the building materials system to the whole country. The meaning of FRP refers to the reinforced plastics made of glass fiber as reinforcing material and synthetic resin as binder. It is called glass fiber reinforced plastic in foreign countries. With the development of China’s FRP industry, as a plastic-based reinforcement material, it has been expanded from glass fiber to carbon fiber, boron fiber, aramid fiber, alumina fiber and silicon carbide fiber. Undoubtedly, these new fiber made of reinforced plastic It is a high-performance fiber reinforced composite material, which can not be summarized by the common name of FRP. Considering the origin and development of history, FRP composites are usually used, so the name is more comprehensive.