Star coupling lithium rubber is the ideal raw material for bead rubber. Ordinary butadiene lithium rubber is not sticky and difficult to knead, but it is unique in processing. It can quickly mix large amounts of carbon black without natural rubber. The bead adhesives, such as rags, must be hard and require very high wear resistance and must be able to be processed. BunaCB65 (Butadiene Rubber) has been widely used with the best balance of performance. Using BR as bead rubber improves wear resistance, reduces heat generation and improves resilience. The synthesis technology of polymers for low-fuel-tire tires developed due to shortage of oil has brought great changes to the tire rubber compound. According to reports, a 10% reduction in tire rolling resistance can reduce fuel consumption by 1-2, while the energy consumption caused by the tire's rolling resistance accounts for about 15.0% of the vehicle's various energy consumption. Therefore, reducing the tire's rolling resistance is effective in reducing vehicle fuel consumption. One of the methods. Most of the reasons for tire rolling resistance are due to rubber hysteresis loss.
The most commonly used synthetic rubber for passenger tires is styrene-butadiene rubber. The microstructure of styrene-butadiene rubber depends on the ratio of styrene bound to the cis- and trans-vinyl groups of the polybutadiene component and its molecular structure arrangement. The commonly used emulsion polymerized styrene-butadiene rubber has excellent slip resistance on wet road surfaces, but its rolling resistance is large. In addition, although the butadiene rubber has a small rolling resistance, its wet road surface has poor slip resistance. Solution-polymerized styrene butadiene rubber produced by a solution polymerization process that easily controls the microstructure compared to emulsion-polymerized styrene-butadiene rubber (a medium-to-high vinyl content solution with reduced ethylene binding and increased vinyl content of the polybutadiene moiety Polymerized styrene-butadiene rubber) can keep the anti-slip performance of wet pavement and reduce rolling resistance.
XZL-FIFO injection molding machine
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