DPG (Diphenyl Guanidine) is a widely used rubber accelerator that plays a vital role in the production of rubber products. This article aims to provide an overview of DPG, its characteristics, its applications in rubber product manufacturing, potential product combinations, and important considerations for commercial procurement.

1. What is DPG?

DPG is an organic compound belonging to the guanidine class of accelerators. It is a white to pale yellow powder with a faint odor. Chemically, it consists of diphenyl guanidine molecules. DPG is known for its solubility in rubber and compatibility with various types of rubber.

2. Characteristics of DPG:

- Acceleration: DPG functions as a medium-fast primary accelerator, meaning it promotes the vulcanization process in rubber production.
- Moderate reactivity: It offers a balanced level of reactivity, making it suitable for a wide range of rubber types, including natural rubber (NR), synthetic rubber, and blends.
- Good scorch safety: DPG provides good scorch safety, preventing premature curing during processing and allowing for extended processing time.
- Excellent vulcanization properties: It promotes cross-linking between rubber molecules, resulting in improved mechanical properties, such as increased tensile strength, elongation, and resilience.
- Heat resistance: DPG enhances the heat resistance of rubber products, making it suitable for applications exposed to high temperatures.

3. Applications in Rubber Product Manufacturing:

DPG finds extensive use in the production of various rubber products, including:

- Tires: It is commonly used in tire manufacturing to accelerate vulcanization, ensuring optimal performance, durability, and tread wear resistance.
- Industrial rubber goods: DPG contributes to the production of conveyor belts, seals, gaskets, hoses, and other rubber components, providing enhanced mechanical properties and improved aging resistance.
- Footwear: DPG is employed in the production of rubber soles and shoe components, improving their strength, flexibility, and resistance to abrasion.

4. Combinations with Other Products:

DPG can be combined with other accelerators to achieve specific performance requirements. Some common combinations include:

- DPG and sulfur: This combination is widely used in tire manufacturing and other rubber applications, providing excellent vulcanization properties, aging resistance, and overall performance.
- DPG and thiazole accelerators: Thiazole accelerators, such as MBTS (Dibenzothiazole Disulfide) or CBS (Cyclohexylbenzothiazole Sulfenamide), when combined with DPG, can enhance the vulcanization process and improve aging resistance.
- DPG and other guanidine accelerators: The combination of DPG with accelerators like DOTG (Diorthotolyl Guanidine) can provide synergistic effects, enhancing the overall curing efficiency and performance.

5. Considerations for Commercial Procurement:

When procuring DPG for commercial purposes, it is important to consider the following information:

- Quality assurance: Ensure that the supplier follows stringent quality control measures and provides certificates of analysis to ensure the product's consistency and reliability.
- Regulatory compliance: Verify that the DPG product meets the required industry standards and complies with relevant regulations and guidelines.
- Packaging and storage: Check if the packaging is suitable for your specific requirements and that proper storage conditions are provided to maintain the product's quality and stability.
- Technical support: Evaluate if the supplier offers technical support and assistance, such as formulation recommendations, to optimize the use of DPG in your rubber products.

DPG (Diphenyl Guanidine) is a versatile rubber accelerator with notable characteristics, including medium-fast acceleration, moderate reactivity, good scorch safety, and excellent vulcanization properties. It finds widespread application in various rubber products, including tires, industrial rubber goods, and footwear. By combining DPG with other accelerators, manufacturers can tailor rubber formulations to meet specific performance requirements. When engaging in commercial procurement, prioritize quality assurance, regulatory compliance, appropriate packaging, and technical support to ensure optimal results in rubber product manufacturing.