The main application fields of composite materials include:
① Aerospace field. Because of its good thermal stability, high specific strength and stiffness, composite materials can be used to manufacture aircraft wings and front fuselage, satellite antennas and their supporting structures, solar cell wings and shells, large launch vehicle shells, engine shells, space shuttle structural parts, etc.
② Automobile industry. Due to the special vibration damping characteristics of composite materials, which can reduce vibration and noise, have good fatigue resistance, and are easy to repair after damage, and are convenient for integral forming, it can be used to manufacture automobile body, load-bearing components, transmission shaft, engine frame and its internal components.
③ Chemical, textile and machinery manufacturing. The material made of carbon fiber with good corrosion resistance and resin matrix can be used to manufacture chemical equipment, textile machines, paper machines, copiers, high-speed machine tools, precision instruments, etc.
④ Medical field. Carbon fiber composites have excellent mechanical properties and non-absorbable X-ray characteristics, and can be used to manufacture medical X-ray machines and orthopedic scaffolds. Carbon fiber composites also have biocompatibility and blood compatibility, good stability in biological environment, and are also used as biomedical materials. In addition, composite materials are also used for manufacturing sports devices and building materials.

