Carbon black is a filler commonly used to improve the wear resistance of rubber products. Among them, carbon black has an important impact on the wear resistance of tires. In this article, we will discuss the impact of carbon black on tire wear resistance and the evaluation indicators of carbon black wear resistance.
Carbon black is widely used in rubber products due to its good wear resistance and thermal conductivity. In tire manufacturing, carbon black is used as a filler to improve the hardness and wear resistance of tires.
There are two main methods for evaluating the wear resistance of carbon black: thermal expansion method and friction and wear method. The thermal expansion method evaluates the wear resistance of carbon black by measuring the volume change of a carbon black sample under high temperature conditions. This method can reflect the stability of carbon black under high temperature conditions. The friction and wear law evaluates the wear resistance of carbon black by measuring the wear rate of carbon black samples under friction conditions. This method can reflect the stability of carbon black under friction conditions.
In practical applications, the evaluation of tire wear resistance also needs to consider other factors, such as rubber ratio, rubber forming process, etc. Especially for tire surface materials, the wear resistance needs to consider the wear of the tire in high-speed driving and high-temperature environments, so high-speed rolling wear tests and high-temperature rolling wear tests need to be performed.
In tire manufacturing, the amount of carbon black added is usually between 20% and 50%, and the specific amount depends on the use requirements of the tire. Excessive carbon black addition will cause the tire to be too hard, with increased wear resistance but reduced flexibility, affecting the tire's grip and driving experience. Adding too little carbon black will lead to a decrease in tire wear resistance. Therefore, in tire manufacturing, it is necessary to balance the wear resistance and flexibility of the tire through appropriate carbon black addition.
Carbon black is an important filler to improve the wear resistance of tires. The wear resistance of carbon black can be evaluated through thermal expansion method and friction and wear method. At the same time, in tire manufacturing, it is necessary to balance the wear resistance and wear resistance of tires through appropriate carbon black addition. Flexibility.