Carbon fiber can be classified according to different dimensions such as raw silk type, manufacturing method, and performance.
1. Classified according to the type of raw silk: polyacrylonitrile (PAN) base, pitch base (isotropic, mesophase); viscose base (cellulose base, rayon base). Among them, polyacrylonitrile (PAN)-based carbon fiber occupies the mainstream position, with output accounting for more than 90% of the total carbon fiber, and viscose-based carbon fiber is less than 1%.
2. Classified according to manufacturing conditions and methods: carbon fiber (800-1600°C), graphite fiber (2000-3000°C), activated carbon fiber, and vapor-phase grown carbon fiber.
3. According to the mechanical properties, it can be divided into general-purpose and high-performance types: general-purpose carbon fiber strength is 1000MPa, modulus is about 100GPa; high-performance type is divided into high-strength type (strength 2000MPa, modulus 250GPa) and high model (modulus 300GPa or more), of which the strength greater than 4000MPa is also called ultra-high strength type, and the modulus greater than 450GPa is called ultra-high model.
4. According to the size of the tow, it can be divided into small tow and large tow: the small tow carbon fiber is mainly 1K, 3K, and 6K in the early stage, and gradually develops into 12K and 24K. It is mainly used in aerospace, sports and leisure and other fields. Carbon fibers above 48K are usually called large tow carbon fibers, including 48K, 60K, 80K, etc., which are mainly used in industrial fields.
5. Tensile strength and tensile modulus are the two most important indicators to measure the performance of carbon fiber.
The above is the content of the classification of carbon fiber materials introduced to you. If you don’t know anything about it, welcome to consult our website, and we will have professional people to explain it to you.
Post time: Apr-06-2023