What is the significance of chemical additives on tire rubber?

Chemical additives play a crucial role in tire rubber, as they have a significant impact on tire performance, quality, and service life. The following is a detailed analysis of the significance of chemical additives in tire rubber:

1、 Improve tire performance

Sulfurization accelerator: such as zinc oxide, as a vulcanization activator, can significantly shorten the vulcanization time, improve the vulcanization efficiency, and ensure the strength and durability of tires. Highly dispersed active zinc oxide can also improve the thermal conductivity, wear resistance, and tensile strength of tires, further extending their service life.

Reinforcing agent: such as carbon black, is a commonly used reinforcing agent in tires, which can significantly improve the wear resistance and cutting resistance of tires. The particle size and structure of carbon black have a significant impact on the performance of tires. Fine grained carbon black is mainly used for tire treads, endowing tires with excellent wear resistance.

Softening agents, such as aromatic oils, can improve the elasticity and toughness of rubber, especially with good affinity for natural rubber and butadiene rubber, which helps to improve tire processing performance and reduce production costs.

2、 Improve tire quality

Antioxidants: can delay the aging process of rubber and improve the service life of tires. Antioxidants can resist the erosion of ultraviolet rays, ozone, and oxygen, protecting tires from environmental damage.

Coupling agent: It acts as a bridge between reinforcing agents such as white carbon black and rubber matrix, improving the reinforcement effect and enhancing the wear resistance and wet skid resistance of tires.

3、 Meet specific needs

Dyeing agent: can give tires different colors and meet consumers' personalized needs for tire appearance. However, it should be noted that larger dye particles may cause tires to rupture in hot weather, so their use needs to be cautious.

Other special additives, such as Gumaron resin, can enhance the adhesion, cutting resistance, and wear resistance of tires to meet specific usage requirements.

4、 Reduce costs and energy consumption

Some chemical additives, such as highly dispersed active zinc oxide, can significantly reduce the production cost and energy consumption of tires due to their high activity and low dosage. At the same time, these additives can also improve the production efficiency and quality stability of tires, bringing greater economic benefits to tire manufacturers.

In summary, chemical additives in tire rubber have multiple meanings, such as improving tire performance, enhancing tire quality, meeting specific needs, and reducing costs and energy consumption. Therefore, it is crucial to choose and use chemical additives reasonably in the tire manufacturing process.