ABS carbon nanotube conductive masterbatch is a composite material with acrylonitrile-butadiene-styrene (ABS) as the base resin and various conductive fillers added to make it conductive. The base ABS resin is available in injection molding grade and extrusion grade. The resistance value of the conductive ABS composite material is less than 10E8 ohms.
C121 is a conductive ABS material with stable electrical properties. Its electrical properties remain stable within a certain range of temperature, humidity and frequency. Under different environmental conditions, its electrical parameters such as resistivity and surface resistance change little, and it can maintain relatively stable conductive properties, so that the conductive ABS can function reliably in various complex working environments.
C121H is a high-impact and high-rigidity conductive ABS compound. Although it contains a certain amount of fillers, its melt fluidity is better than some other engineering plastics. It is easier to fill the mold during processing, and the molding cycle is relatively short, which is conducive to improving production efficiency and reducing production costs.
Conductive ABS materials can maintain stable thermal properties within a certain temperature range and are not easy to deform and decompose. Its heat deformation temperature is relatively high, generally between 86℃-100℃, and can be increased by about 10℃ after annealing, which can meet the use requirements in some high temperature environments.
Because this type of compound has a small molding shrinkage rate and a high dimensional accuracy of the final product, it has advantages in the production of precision parts or products with strict dimensional requirements. For example, the shells and parts of some instruments and meters need to use materials with good dimensional stability to ensure the accuracy and reliability of the product.
Common conductive fillers in ABS carbon nanotube conductive masterbatch
Carbon black filled conductive ABS composite material: It is one of the most commonly used conductive fillers with relatively low cost and good conductivity. It can form a conductive network in the ABS matrix, giving the composite material a certain conductivity. However, the addition of carbon black may affect the color and mechanical properties of the material, usually making the material black, and may reduce the mechanical properties of the material, such as impact strength.
Carbon nanotube filled conductive ABS composite material: Carbon nanotubes have high strength and stiffness. Adding them to ABS can play a reinforcing role and improve the mechanical properties of the material such as tensile strength, bending strength, and yield strength. For example, after appropriate preparation process, the tensile strength, bending strength and other mechanical properties of carbon nanotube-based conductive ABS may be improved by 20%-50% or even higher than other conductive ABS.
Carbon fiber filled conductive ABS material: It has the characteristics of high strength, high modulus and good conductivity. The addition of carbon fiber can not only improve the conductivity of ABS, but also enhance the mechanical strength and heat resistance of the material. However, the price of carbon fiber is also relatively high, and the processing technology requirements of this level of conductive ABS are relatively high, and special treatment is required to make it evenly dispersed in the matrix.
Metal fiber filled conductive ABS material: such as stainless steel fiber, has good conductivity and mechanical properties. Metal fiber has a large aspect ratio and is easier to form a conductive network in ABS, thereby improving the conductive properties of the material. Compared with metal powder, metal fiber has better dispersibility, but it also has the problem of high cost.
What fields is ABS carbon nanotube conductive masterbatch used in?
It is used to manufacture the shells, substrates, connectors and other parts of computers, communication equipment, displays, etc. to prevent static electricity from damaging sensitive components. For example, the use of conductive ABS in the shell of a mobile phone can effectively prevent static electricity accumulation and protect the electronic components inside the mobile phone.
Used in automotive fuel system components, dashboards, interior trims, etc. to reduce the risk of static sparks and improve the safety performance of the car. In addition, the conductive adhesive can also be used in the electromagnetic shielding components of the car to reduce the interference of external electromagnetic signals on the automotive electronic equipment.
Used to manufacture surgical instruments, diagnostic equipment, and medical equipment housings to reduce the impact of static electricity on equipment and patients. For example, the conductive ABS in the electrocardiograph housing can avoid static electricity interference with the electrocardiograph signal and improve the accuracy of diagnosis.
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