In recent years, the market sales of PA66 composite materials have grown rapidly. With the rapid development of the automotive, electrical, communications, electronics, machinery and other industries, higher and more demanding requirements have been put forward for PA66 products, and the process of high performance of PA66 and its composite materials has also been accelerated. Therefore, the research on the high performance of PA66 composites has attracted more and more attention from scientists at home and abroad, and has become a hot and difficult point in the research of engineering plastics modification.
Adding reinforcing agents such as glass fiber, nano-silica, carbon fiber and graphite fiber to the PA66 base material can improve many properties of the material, especially mechanical properties. Carbon fiber reinforced PA66 (CF/PA66) can significantly improve the thermal stability and dimensional stability of the material. Its products can be widely used in the automotive industry, sports equipment, textile machinery, aerospace materials and other fields.
Glass fiber reinforced PA66 (GF/PA66) is a well-established method to date, and the enhancement effect is better. Glass fiber is an inorganic non-metallic material with excellent performance and low cost. GF/PA66 has good molding properties and high mechanical properties, so it has a wide range of applications. The glass liquid is cooled and solidified into glass fibers in a high-temperature molten state. Generally, the monofilament has a diameter of 5 to 30 μm, and a bundle of fibers is composed of hundreds or even thousands of monofilaments. GF/PA66 has good mechanical properties, dimensional stability, heat resistance and aging resistance, and is widely used in various industries.
GF/PA66 includes short fiber and long fiber reinforcement. Long fiber reinforcement has better tensile strength and impact strength than short fiber reinforcement. As the most versatile commercial fiber, glass fiber is widely used in various general-purpose plastics and engineering plastics, and its interface research and application technology are also quite mature.
