Carbon black for electronic components is a key material for organic solid resistors and organic solid potentiometers, and is mainly used as a conductive phase in products. However, the acetylene carbon black used before is difficult to achieve a resistance value above 100kΩ, which requires carbon black manufacturers to develop new high-resistance conductive carbon black for electronic components. This article introduces this new product of high-resistance conductive carbon black for electronic components. .
Carbon black has a great influence on the electrical properties of the resistor. Under the action of an electric field, the carbon black particles dispersed in the medium will automatically align, reducing the resistance of the complex, so it is difficult to make a high-resistance resistor. Now many resistance elements have high requirements on resistance. The resistance value of resistors can be changed from tens of Ω to several MΩ in the past, and ordinary conductive carbon black can be used to meet the requirements. As high as 100kΩ or more, the general conductive carbon black cannot satisfy, which requires high-resistance conductive carbon black.
The amount of carbon black added is also an important factor affecting the stability of the resistor. Therefore, under the premise of ensuring the resistance value of the resistor, the content of carbon black should be increased as much as possible. If the carbon black content is too small, the resistance fluctuation of the resistor will be very large, the voltage coefficient and current noise will also be large, and the stability characteristics, load life, and moisture resistance will also be poor.
High-resistance conductive carbon black can not only be used in resistance components, but also in battery products, anti-static products, surface coating and other industries.