What should we pay attention to when using conductive carbon fiber?

Due to the high conductivity of the conductive carbon fiber, its addition amount in the coating is very small. Taking the conductive carbon fiber as an example, after testing, when the addition amount in the solventless epoxy floor coating is 4 ,, the surface of the obtained coating layer The resistance can reach 104Ω. Of course, the surface resistance of the solvent-free (anti-static) electrostatic self-leveling is also affected by the underlying conductive layer. Depending on the conductivity of the conductive layer, the surface resistance measured by the final topcoat will also be different. By adjusting the amount of conductive carbon fiber added, a conductive (anti-)static coating of different electrical resistance can be obtained. The larger the amount of addition, the higher the conductivity of the coating, but when a certain amount is reached, the resistance does not substantially change, that is, the maximum conductivity is achieved. In addition, regarding the length of conductive carbon fiber, it is also a concern of many paint engineers. How long is the choice of carbon fiber suitable? According to the conductive mechanism of the conductive carbon fiber, the longer it is, the easier it is to form a conductive path, and the better the conductivity, but in the actual use, it must be considered comprehensively. Although the longer the conductivity, the better, but the longer the dispersion in the coating, the more difficult it is to disperse. In actual use, a length of 3 mm is suitable.

In order for the conductive carbon fiber to function well, its dispersion in the coating is particularly critical. According to the different systems, suitable dispersing aids must be selected. Only when dispersed, can we make uniform and stable coatings. The coatings made by many companies are unstable in electrical conductivity, and the problems often appear in the control of the process flow, or simply added, and do not exert the excellent performance of the conductive material itself.

In addition, by comparing with the cost of other conductive additive materials, it was found that the cost of the conductive (anti-)static coating made of conductive carbon fiber was significantly reduced, and the cost of the conductive additive material was only about 20%.

The registered trademark of Yancheng Xiangsheng Carbon Fiber Technology Co., Ltd. is “Xiangli”. The company occupies an area of ​​10 mu. It has a standardized workshop of 7,000 square meters and a total investment of 35 million yuan. It integrates scientific research, development, production and sales. It has been developed. Rotorcraft shell with independent intellectual property rights, landing gear, aircraft planting spray system, seaplane float, swamp boat, aerodynamic ship, aeronautical communication helmet, carbon fiber for plastic reinforcement, carbon fiber powder for friction material, short brake system Cut carbon fiber, as well as 16 series of carbon fiber rope, carbon fiber cloth, carbon fiber filament special fiber cutting machine.