Brief Analysis of Thermal Properties of Carbon Fiber Composites

Carbon fiber is an inorganic fiber with a carbon content of more than 95%. It is made of different raw materials through polymerization, spinning, oxidation, and high-temperature carbonization.

According to the type of raw materials, carbon fibers mainly include polyacrylonitrile-based carbon fiber, viscose-based carbon fiber and pitch-based carbon fiber.

Among them, polyacrylonitrile-based carbon fiber, which uses petrochemical product acrylonitrile as the main raw material, accounts for more than 90% of the world’s total carbon fiber production and is the main source of high-performance carbon fiber.

The performance of carbon fiber composite materials is more prominent than that of traditional materials, so it has been used in aerospace, rail transit, medical and other fields. Mainly to understand the thermal properties of carbon fiber composite materials.  

High Temperature Resistance

The working temperature of carbon fiber itself is very high, which can reach 2000 ° C. Since carbon fiber is mostly used in the form of composite materials, carbon fiber needs to be incorporated into the resin, and the working temperature of the resin is not so high, so the general carbon fiber composite material The working temperature is about 150 ℃, but some special fields need to use high temperature resistant materials. The Be-cu prototype has a high temperature resistant carbon fiber board, and the working temperature can reach more than 600 ℃.  

Coefficient Of Thermal Expansion

Objects expand and contract due to changes in temperature. The ability to change is based on the constant pressure, and the change in the length value caused by the unit temperature change is the thermal expansion coefficient. The thermal expansion coefficient of the carbon fiber composite material is very small, which means that the size of the carbon fiber composite material is very stable. Minimal creep is guaranteed.  

Thermal Conductivity

Carbon fiber is obtained by carbonization at high temperature. When the graphite lattice is oriented in the axial direction of the fiber, it will have ultra-high thermal conductivity and excellent thermal conductivity.  

Compared with other materials, the thermal properties of carbon fiber composite materials are more prominent. China Be-cu Prototype Material Technology Co., Ltd. is a carbon fiber product manufacturer with rich production experience. equipment, which provides a guarantee for the production of high-quality carbon fiber products.

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.