The latest development of modified PA products
As mentioned earlier, glass fiber reinforced PA was researched in the 1950s, but it was industrialized in the 1970s. Since the development of super-tough PA66 in 1976, major companies in various countries have developed new modified PA products. , Western Europe, Japan, the Netherlands, Italy, etc. vigorously develop reinforced PA, flame-retardant PA, filled PA, and a large number of modified PA are put on the market.
In the 1980s, the successful development of compatibilizer technology promoted the development of PA alloys. Countries around the world have successively developed PA/PE, PA/PP, PA/ABS, PA/PC, PA/PBT, PA/PET, PA/ Thousands of alloys such as PPO, PA/PPS, PA/I.CP (liquid crystal polymer), PA/PA, etc., are widely used in industries such as automobiles, locomotives, electronics, electrical machinery, textiles, sporting goods, office supplies, home appliances, etc. .
In the 1990s, new varieties of modified nylon continued to increase. During this period, modified nylon became commercialized, forming a new industry, and it developed rapidly. At the end of the 1990s, the world’s nylon alloy production reached 1.1 million tons per year. .
In terms of product development, high-performance nylon PPO/PA6, PPS/PA66, toughened nylon, nano-nylon, and halogen-free flame-retardant nylon are the leading directions; in terms of application, the development of automotive components and electrical components has made significant progress, such as High-flow modified nylon for automobile intake manifolds has been commercialized. The plasticization of components with complex structures is of great significance in application, and more importantly, it extends the life of components and promotes the development of engineering plastics processing technology. develop.
The development trend of modified nylon
As the largest and most important variety of engineering plastics, nylon has strong vitality, mainly because it achieves high performance after modification, followed by the increasing requirements of automotive, electrical, communications, electronics, machinery and other industries on product performance. The stronger, the rapid development of related industries has promoted the process of high-performance engineering plastics. The future development trend of modified nylon is as follows.
① The market demand for high-strength and high-rigidity nylon is increasing. New reinforcement materials such as inorganic whisker reinforcement and carbon fiber reinforced PA will become important varieties, mainly used in automobile engine parts, mechanical parts and aviation equipment parts.
②Nylon alloying will become the mainstream of the development of modified engineering plastics. Nylon alloying is an important way to realize the high performance of nylon, and it is also the main method to manufacture special nylon materials and improve nylon performance. By blending other polymers, the water absorption of nylon is improved, the dimensional stability of the product, and the low temperature brittleness, heat resistance and abrasion resistance are improved. Therefore, it is suitable for different requirements of vehicle types.
③The manufacturing technology and application of nano nylon will develop rapidly. The advantages of nano nylon are its thermal properties, mechanical properties, flame retardancy, and barrier properties.