Mixtures of Natural Rubber and Synthetic Rubber 97.5% STR20 + 2.5% SBR1502 High-Performance Rubber Blend

It has excellent high and low temperature resistance, weather resistance, ozone resistance, arc resistance, electrical insulation, moisture resistance, high breathability and physiological inertness, etc.

Component characteristics

STR20 (Standard Natural Rubber No. 20): has good elasticity, tensile strength and wear resistance. The high flexibility of the natural rubber molecular chain allows it to quickly recover to its original shape after deformation, which gives rubber products excellent elastic properties. At the same time, it also has good aging resistance and tear resistance, and can maintain stable performance during long-term use.

SBR1502 (Styrene Butadiene Rubber): Styrene Butadiene Rubber is a synthetic rubber copolymerized by butadiene and styrene. SBR1502 has good wear resistance, oil resistance and weather resistance. Its addition can improve the hardness, strength and aging resistance of the rubber mixture while reducing costs. Compared with natural rubber, styrene butadiene rubber has better processing performance and shows good fluidity and plasticity during mixing, molding and other processing processes.

Performance advantages

High elasticity and flexibility: Due to the high content of the main components of natural rubber, the mixture retains the excellent elasticity and flexibility of natural rubber, and can provide good sealing, shock absorption and cushioning performance in various dynamic and static applications. Whether in the shock-absorbing components of the automotive suspension system or in the sealing gaskets of industrial pipelines, it can play an excellent elastic function.

Good wear and tear resistance: The inherent characteristics of STR20 and the complementary effect of SBR1502 make the mixture have good wear and tear resistance. This makes it suitable for occasions that need to withstand high friction and repeated stretching, such as tire treads, conveyor belts, etc. In these applications, the rubber mixture can withstand long-term wear and tear and extend the service life of the product.

Enhanced aging and weather resistance: SBR1502 has good weather resistance and aging resistance. After mixing with STR20, it can improve the aging and weather resistance of the entire mixture. Even under long-term exposure to natural environmental conditions such as sunlight, wind and rain, or in harsh working environments such as high temperature and high humidity, the rubber mixture can maintain good performance stability and reduce performance degradation and failure caused by aging.

Excellent processing performance: The addition of SBR1502 improves the processing performance of natural rubber. During the mixing process, the mixture has better fluidity and plasticity, which is convenient for uniform mixing with various additives, thereby improving production efficiency and consistency of product quality. During the molding process, it can be easier to fill the mold and form various complex shapes to meet the needs of different application fields.

Application Fields

Tire Manufacturing: In tire production, this rubber mixture is often used in parts such as treads and sidewalls. The tread part requires good wear resistance, tear resistance and grip to ensure the safety and durability of the tire during driving; the sidewall needs to have certain flexibility and weather resistance to withstand deformation during vehicle driving and the influence of the external environment. The mixture can well meet these requirements and improve the overall performance of the tire.

Industrial Rubber Products: Widely used in the manufacture of various industrial rubber products, such as conveyor belts, rubber tubes, seals, shock absorbers, etc. Conveyor belts need to have high wear resistance and tear resistance to transmit heavy objects; rubber tubes need good flexibility and pressure resistance to transport various fluids; seals require excellent elasticity and sealing to prevent fluid leakage; shock absorbers need to use the elasticity of rubber to absorb vibration and impact. The comprehensive properties of this rubber mixture enable it to meet the specific requirements of different industrial rubber products.

Automotive parts: In the automotive industry, it is used to manufacture shock-absorbing components, engine brackets, door sealing strips, etc. for automobile suspension systems. Shock-absorbing components and engine brackets need to have good elasticity and shock-absorbing properties to reduce vibration and noise during vehicle driving; door sealing strips need to have excellent sealing performance and weather resistance to ensure the sealing and comfort of the car. This rubber mixture can provide reliable performance guarantee for automotive parts and improve the overall quality of the car.

Other fields: It can also be applied to some other fields, such as sporting goods (such as the inner liner of basketballs, footballs and other balls), insulating sheaths of wires and cables, rubber soles, etc. In these applications, the high elasticity, wear resistance and aging resistance of the rubber mixture can be fully utilized to meet the use requirements of the product.

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