High-performance polymer composite materials have become indispensable strategic key materials for national defense and national economic construction due to their excellent comprehensive properties. They have been applied in aviation, aerospace, wind power, rail transit, automobiles and other fields and have broad development prospects.
This article analyzes the macro requirements for the development of high-performance polymer composite materials in China, and reviews the fiber reinforcements such as carbon fiber, aramid, and high-performance glass fiber in high-performance polymer composite materials, as well as polymer resin matrix for composite materials such as epoxy resin, The development status and characteristics of phenolic resins and special resins have studied and judged the problems in the development of high-performance polymer composites and the goals and tasks of future development. The research found that the carbon fiber field has initially formed an industrialization system from key technology research and development to engineering production, and materials are developing in both directions of high performance and low cost; the success of the industrialization of para-aramid; glass fiber maintains low-speed expansion; high performance The molecular composite resin matrix industry is facing a severe development situation.
High-performance polymer composite materials refer to a class of materials represented by fiber-reinforced epoxy resins such as carbon fiber, aramid, and glass fiber, and high-performance resins such as bismaleimide resin. They have excellent comprehensive performance and are used for national defense and national economic construction. Indispensable strategic key materials. As the main material basis of high-end equipment, high-performance polymer composite materials play an irreplaceable role in the lightweight structure and ablation and heat protection components of weapons and equipment such as aerospace and aviation, such as those used in hypersonic vehicles, nearby space vehicles, and Deep space exploration vehicles and other new-generation weapons and equipment and major scientific and technological projects. At the same time, high-performance polymer composite materials are also widely used in major areas of the national economy represented by high-end industrial manufacturing, rail transit, and clean energy.
At present, a relatively mature industry has been formed in the field of high-performance polymer composite materials internationally and has continued to develop steadily. In terms of reinforcement materials, carbon fiber is the most important reinforcement of advanced composite materials. Specialized or high-performance technologies for application requirements and large-scale industrial-grade low-cost technologies have become research hotspots. In terms of para-aramid fiber, more and more attention is paid to the construction of the industrial chain, the trend of technological integration is becoming more and more obvious, and new applications are constantly emerging. The glass fiber industry has formed a complete industrial chain from fibers, products to composite materials. The development of the resin matrix has entered an orderly and stable period. In composite material manufacturing technology, automated manufacturing technology is becoming more and more common, aviation and aerospace composite material technology has entered a mature period, and the application of wind power and automotive fields has injected new vitality into the carbon fiber composite material industry. Thermoplastic composite materials are used in rail transit and automobile industries. The application prospect is broad.
In recent years, with the further increase in demand for high-performance polymer composites in industries such as aviation, aerospace, wind power, rail transit, automobiles, and high-pressure vessels, China’s high-performance polymer composites industry has begun to take shape, with application areas and production capacity Continue to expand and gradually develop towards low cost and high performance.
TBC