Diphenylguanidine (DPG), identified by CAS number 102-06-7, is a fundamental chemical compound within the rubber industry, widely recognized for its role as a medium-speed rubber accelerator. Its unique chemical structure and properties make it invaluable for a variety of rubber processing applications, from tire manufacturing to the production of industrial rubber goods. Understanding its characteristics and best practices for sourcing is crucial for procurement managers and R&D scientists.

DPG typically appears as an off-white powder or granules with a slight odor and a bitter taste. Its solubility in organic solvents like ethanol and acetone, while limited in water, dictates its handling and formulation methods. As a secondary accelerator, DPG works in synergy with primary accelerators, particularly thiazoles and sulfenamides. This partnership enhances the vulcanization process, leading to improved tensile strength, modulus, and resilience in the final rubber product. For manufacturers, this means greater control over the curing kinetics and the ability to fine-tune product performance.

The applications of DPG are extensive. Beyond its primary use in tire production (passenger car tires, truck tires, agricultural tires), it is essential for manufacturing rubber sheets, soles, industrial hoses, and other rubber components. Its utility extends to being a plasticizer and deplasticizer in neoprene compounds. When seeking to buy DPG, it’s important to consider factors such as purity, particle size, and any anti-caking treatments like oiling, which can improve dispersion and handling.

For businesses in need of a reliable supply, sourcing DPG from established manufacturers in China presents a compelling opportunity. These suppliers offer competitive pricing, high purity levels (often exceeding 97%), and a wide range of packaging options, from 20kg to 25kg bags. When engaging with a potential supplier, look for those with substantial production capacities (e.g., 120 tons per month or 3000 tons per year), a proven track record of export experience (over 10 years), and certifications like ISO. Requesting samples is a standard practice to verify quality before placing bulk orders. Understanding the market price and negotiating effectively are key to securing a cost-effective procurement.

In summary, Diphenylguanidine remains a cornerstone additive for achieving optimal rubber performance. By understanding its properties, applications, and smart sourcing strategies, companies can ensure a consistent and high-quality supply, vital for their manufacturing success.