Thermosetting resin-based composite materials have excellent comprehensive properties and have great development potential in the aerospace field.

Thermosetting resin-based composite materials are composite materials made of thermosetting resin as the matrix and fibers and fabrics as reinforcements. Thermosetting resin-based composite materials are one of the important high-performance materials and can be widely used in aerospace, electronics, sports equipment and other fields.

Thermosetting resin, as the matrix of thermosetting resin-based composite materials, generally has excellent chemical corrosion resistance, high temperature resistance, and dimensional stability. Thermosetting resin is usually liquid at room temperature and can be cured after heat treatment. This process is irreversible. The cured thermosetting resin cannot be remelted, cannot be cured repeatedly, and is not soluble in general solvents. When the thermosetting resin is cured in the mold, it can Form products of specified size and shape. Common thermosetting resins mainly include unsaturated polyester resin, epoxy resin, phenolic resin, polyimide, etc.

Any material that can enhance the mechanical properties of the matrix can be used as a reinforcement for thermosetting resin matrix composites. Fibers are mainly used, including inorganic fibers and organic fibers. Commonly used reinforcements for thermosetting resin-based composites mainly include inorganic fibers such as glass fiber, carbon fiber, boron fiber, and metal fiber, as well as organic fibers such as aramid fiber, nylon fiber, polyethylene fiber, and polypropylene fiber.

According to the “In-depth Market Research and Development Prospects Forecast Report of China’s Thermosetting Resin Matrix Composite Materials Industry from 2022 to 2027” released by the Industrial Research Center It shows that epoxy resin-based carbon fiber composite material is a common thermosetting resin-based composite material with the advantages of low density, light weight, high rigidity, high strength, good dimensional stability, high temperature resistance, chemical corrosion resistance, radiation resistance, etc. , can be used to manufacture civil aircraft structural parts, which can reduce the weight of the fuselage while maintaining its strength, thereby reducing aircraft fuel consumption, increasing aircraft cruising range, and reducing flight costs. In addition, epoxy resin-based carbon fiber composite materials can also be used to manufacture solar cell substrates, missile warheads, satellite fairings, etc.

The Chinese government pays great attention to the development of the thermosetting resin matrix composite industry. In the “Made in China 2025” strategy, the aerospace equipment sector proposed to research and break through key technologies such as design analysis, manufacturing processes, and test verification required for the application of thermosetting resin-based composite materials to main structures such as wings and fuselages. This is conducive to the continuous advancement of my country’s thermosetting resin matrix composite materials research and development and production technology, and is beneficial to the development of the thermosetting resin matrix composite material industry.

Industry analysts said that my country’s aerospace industry continues to develop and grow, with the frequency of satellite launches increasing, the construction of space stations accelerating, and military use The rapid upgrade of aircraft technology and the entry into mass production of large civilian aircraft have led to growing market demand for high-performance materials. Thermosetting resin-based composite materials are a type of high-performance materials with excellent comprehensive properties. They can improve the performance of aircraft while reducing their weight. They have broad market prospects in the future.