Rubber Accelerator DCBS (DZ): The High-Performance Solution for Efficient Rubber Manufacturing

In the rubber industry, the choice of accelerator is the critical factor determining vulcanization efficiency and the final physical properties of the product. Rubber Accelerator DCBS (Chemical Name: N,N-dicyclohexyl-2-benzothiazole sulfenamide, Alias: DZ) stands out as a premier sulfenamide accelerator.

Known for its excellent delayed action (scorch safety), high curing efficiency, and stable physical modulus, DCBS is widely used in the manufacturing of tires, heavy-duty seals, and conveyor belts. This guide provides a comprehensive analysis of DCBS (DZ), covering its core characteristics, technical specifications, and competitive advantages to help manufacturers make informed sourcing decisions.

1. Core Characteristics: Balancing Scorch Safety & Curing Efficiency

The most defining feature of Rubber Accelerator DCBS (DZ) is its ability to balance extended scorch time with rapid cross-linking once the curing temperature is reached. It precisely matches complex processing requirements:

• Superior Scorch Safety (Delayed Action): DCBS is a medium-to-high temperature accelerator. With a vulcanization starting temperature of approximately 138°C and an optimal range of 150-160°C, it offers exceptional stability during storage and processing. This effectively prevents premature vulcanization (scorching), significantly improving processing safety.
• Controllable Curing Speed: By adjusting the dosage of DCBS (DZ), manufacturers can flexibly control the cure rate. This makes it ideal for thick-section rubber parts or products with complex geometries where uniform curing is difficult to achieve.
• Optimized Physical Properties: Rubber cured with DCBS exhibits superior mechanical properties, including high tensile strength, tear strength, and modulus. It also imparts excellent aging resistance and fatigue resilience, extending the service life of the final product.

2. Technical Specifications

Our product quality is backed by rigorous testing standards. Below are the core technical parameters for our DCBS (DZ), strictly adhering to the HG/T 2744-2012 industry standard.

> Note: The parameters above represent standard specifications. We can customize production processes and specifications to meet specific client requirements.

3. Applications: Covering Diverse Industrial Needs

Rubber Accelerator DCBS (DZ) is highly compatible with Natural Rubber (NR), Styrene-Butadiene Rubber (SBR), Nitrile Rubber (NBR), and Polybutadiene Rubber (BR). It works effectively alone or in synergy with other accelerators.

Tire Manufacturing

DCBS is a core accelerator for tire treads, sidewalls, and carcasses.

• Benefit: Its delayed action allows enough flow time during the molding of large tires.
• Result: It improves the heat resistance and abrasion resistance of the tire, increasing durability and safety. Industry data suggests that tread compounds using DCBS can see an 8-12% increase in tensile strength and a 10-15% improvement in abrasion resistance.

Rubber Seals & Gaskets

Ideal for automotive, mechanical, and construction sealing products.

• Benefit: Seals cured with DCBS maintain excellent elasticity and compression set resistance.
• Result: Stable performance in extreme temperature environments ranging from -40°C to 120°C.

Conveyor & Transmission Belts

For industrial belts requiring high tenacity and toughness.

• Benefit: Enhances adhesion strength and tear resistance.
• Result: Prevents breakage and deformation under long-term high-load operations.

4. Competitive Advantages: Cost-Effectiveness & Ecology

Compared to other sulfenamide accelerators (such as CBS or NOBS), DCBS (DZ) offers a distinct advantage in both economics and environmental compliance.

1. High Cost-Performance Ratio: DCBS requires a lower dosage—typically 0.5–2.0 PHR (parts per hundred rubber)—to achieve excellent curing results. Combined with mature production technologies, this can reduce raw material costs by 15-20% compared to premium alternatives.
2. Eco-Friendly Profile: DCBS is free from harmful heavy metals and complies with EU REACH and RoHS standards. Its production process is cleaner, aligning with the global trend toward low-carbon rubber manufacturing.
3. Synergistic Flexibility: It works exceptionally well when combined with Thiurams or Guanidine accelerators to boost curing speed. It is also highly compatible with Zinc Oxide and Stearic Acid activators, requiring no major changes to existing formulas.
4. Storage Stability: DCBS is non-hygroscopic. When stored in a dry, ventilated area, it remains stable for over 12 months without caking, making it suitable for long-term inventory.

5. Conclusion: Powering Your Production

In the competitive landscape of the rubber industry, the quality of your additives defines the quality of your final product. Rubber Accelerator DCBS (DZ) provides the perfect balance of processing safety, curing efficiency, and mechanical strength.

Whether you are looking to reduce scrap rates caused by scorching, improve tire durability, or lower overall production costs, DCBS is the ideal choice.

Looking for a reliable supply of high-purity DCBS?

Contact us today for a technical consultation or to request a sample. We provide customized chemical solutions designed to enhance your product competitiveness.

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