Rubber tires are mainly used to support the weight of the vehicle, transmit the driving force and braking force, absorb the vibration and impact during driving, and are an important part of the transportation vehicles such as automobiles, motorcycles, bicycles, and construction machinery. In actual production, rubber tires are generally processed with natural rubber, styrene-butadiene rubber and butadiene rubber as the main raw materials; The appropriate amount of tire rubber powder can further optimize the performance of finished tires while reducing costs, and the fineness of rubber powder is an important indicator to measure its effect in tires.
1. The influence of tire rubber powder fineness on tire wear resistance
The degree of wear of tires directly affects their service life and driving safety; The fineness of tire rubber powder affects the wear resistance of tires. In general, the higher the fineness, the higher the specific surface area of the rubber powder, and the more uniform dispersion in the rubber matrix, thereby improving the cross-linking degree and compactness of the rubber, improving the wear resistance and tear resistance of the tire, reducing the friction among the tire and the ground during driving, reducing the wear rate, and prolonging the service life of the tire.
In actual production, the tire is mixed with tire rubber powder of more than 80 mesh, which can significantly improve the wear resistance and tear resistance of the tire.
2. The influence of tire rubber powder fineness on tire dynamic heat generation
Tires will generate a lot of heat during high-speed driving, and too high temperature will not only lead to relaxation of tire materials, increase wear, but also may cause tire punctures. Fine rubber powder can significantly improve the thermal conductivity of tire rubber blends, reduce tire dynamic heat generation, and reduce the risk of tire temperature rise during driving. Choosing the right fineness of the rubber powder is the key to ensuring the heat resistance of the tire.
3. The fineness of tire rubber powder affects the fatigue resistance of tires
The finer the tire powder, the better the fatigue resistance of the compound. When about 200 mesh tire rubber powder is added to automobile tires, the fatigue resistance and crack growth resistance can be increased by more than 3 times.
4. The fineness of tire rubber powder affects the grip of tires
Grip is an important indicator for judging the performance of tires, which directly affects the driving stability and safety of the car. Generally speaking, the particle size of the rubber powder is too large, which may lead to a decrease in the elasticity of the tire, which will affect the grip; The higher the fineness of the rubber powder, the better the dispersion in the tire and the better the flexibility of the tire, so that the tire can maintain excellent grip in different road conditions, thereby effectively improving driving safety.
5. The fineness of tire rubber powder affects the noise reduction performance of tires
After the tire is mixed with tire rubber powder, the fineness of the rubber powder affects the acoustic characteristics of the tire. In general, the finer the rubber powder can more effectively absorb the noise generated during driving, reduce the vibration when the tire is in contact with the ground, and thus improve the comfort of the vehicle.
6. The fineness of tire rubber powder affects the processing performance of tires
When some parts of automobile tires are mixed with tire rubber powder to reduce costs, the higher the fineness of tire rubber powder, the better the dispersion in the rubber matrix, which can improve the uniformity and processing performance of the rubber compound. Fine rubber powder is easier to disperse evenly during the mixing process, improving the flexibility and extrusion performance of the compound.
When using tire rubber powder to reduce the cost of tire raw materials and improve the overall performance of tires, it is necessary to consider a variety of factors to choose the appropriate fineness of rubber powder, such as off-road models may need coarser rubber powder E4LYY625 to improve grip, and highway cars need fine rubber powder to enhance wear resistance and heat resistance. From the perspective of production cost, the higher the fineness of tire rubber powder, the higher the price, and it is necessary to choose the appropriate fineness tire rubber powder according to the production process and cost control of the enterprise. On the premise of ensuring the performance of tires, choosing the appropriate fineness of tire rubber powder can effectively reduce production costs and enhance market competitiveness.
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