High-performance polymer composites are indispensable strategic key basic materials for national defense and national economic construction, and are also the material foundation for the development of many key areas in "Made in China 2025". With the transformation of China's national strategy and the introduction of new ideas for national economic development, there is an urgent need for the development and application of high-performance polymer composite materials.
1. High-performance polymer composite materials are the key basic materials to realize the support and guarantee requirements in the national security field
With the implementation of China's national innovation-driven development strategy, the strategy of powering a country with aerospace power, aviation power, and maritime power as the main means has become the foundation of the country. The research and development of strategic missiles, new armors and ships, large aircraft, new-generation fighters, and satellites has a strong demand for high-performance, multi-functional, and high-performance advanced composite materials that integrate structural functions. Key composite materials and structural parts have become a major constraint to the country. The bottleneck of the completion of safety engineering tasks. For example, strategic and tactical missiles, aero-engine hot-end components, hypersonic aircraft, etc. have urgent demand for carbon fiber composite materials above T800; the implementation of domestic large aircraft, advanced satellites and lunar exploration projects requires high-strength medium-mode, ultra-high-strength high-mode carbon fiber And its composite materials.
2. High-performance polymer composites are key materials leading to technological upgrading
In aviation and aerospace equipment, marine engineering equipment and high-tech ships, advanced rail transportation equipment, energy-saving and new energy vehicles, new materials industry, power equipment, new generation information technology industry, high-end CNC machine tools and robots, and high-performance medical equipment, etc. Among these key areas, high-performance polymer composites are key basic materials or upgraded materials that lead the technological revolution. For example, the use of carbon fiber composite materials on the spar caps and main beams of wind turbine blades with a length of more than 40m can reduce the dead weight of the blade by 38% and reduce the cost by 14%; on the other hand, it can improve the fatigue resistance of the blade and increase the output power. For the material, it is easier to produce large-diameter and adaptive wind turbine blades.
3. High-performance polymer composite materials are an urgent need to realize the green development of my country's economy
In the context of limited energy innovation, energy conservation and emission reduction are an important research topic for the automotive industry, and lightweight is one of the keys to solving the problem. Advanced polymer composite materials have outstanding advantages such as high specific modulus and specific strength, great potential for weight reduction, and good safety, making them the best choice for lightweight vehicles. With the continuous advancement of composite material technology, carbon fiber composite materials are now used in automobile bodies, tails, chassis, engine hoods, and interior trims. In the future, the growth rate of carbon fiber demand in the automotive industry will remain at about 7% for a certain period of time.