Diphenyl Guanidine (DPG), identified by its Chemical Abstracts Service (CAS) number 102-06-7, stands as a cornerstone in the rubber industry. Known chemically as 1,3-Diphenylguanidine, this organic compound plays a crucial role as a primary rubber accelerator, significantly enhancing the vulcanization process. Its reliable performance and versatile applications make it an indispensable ingredient for various rubber products globally.

DPG typically presents as a grayish-white powder or granular form. It has a molecular formula of C₁₃H₁₃N₃ and a molecular weight of 211.27. Characterized by its specific density, which ranges from 1.08 to 1.19, DPG exhibits good solubility in organic solvents such as acetone, ethyl acetate, benzene, and alcohol. It is, however, minimally soluble in carbon tetrachloride and insoluble in water and gasoline. These properties contribute to its stability and effectiveness within diverse rubber compounding formulations. Importantly, DPG is not hygroscopic, ensuring good storage stability under appropriate conditions.

The primary function of DPG is to act as a medium-speed secondary accelerator in rubber vulcanization. It is widely utilized in conjunction with other accelerators, particularly thiazoles (like MBT and MBTS) and sulphenamides, to optimize the curing of natural rubber (NR), styrene-butadiene rubber (SBR), isobutylene-isoprene rubber (IIR), isoprene rubber (IR), and nitrile-butadiene rubber (NBR). While rarely used as a standalone accelerator, its synergistic effect with co-accelerators significantly improves the efficiency and kinetics of the cross-linking reactions. This results in rubber compounds with superior physical properties and extended service life.

One of the key advantages of DPG is its ability to provide better storage stability for unvulcanized rubber compounds compared to some other accelerator types like thiurams and dithiocarbamates. This characteristic helps prevent premature vulcanization, also known as scorch, allowing for more controlled processing and extended shelf life of rubber mixtures. DPG also acts as a plasticizer on chloroprene rubber when used in conjunction with sulfur and TMTM, further expanding its utility.

The applications of DPG span a broad spectrum within the rubber manufacturing sector. It is commonly found in the production of various industrial and consumer rubber goods, including but not limited to, automobile tires, inner tubes, rubber footwear, conveyor belts, and general mechanical rubber products. Due to its tendency to cause slight discoloration and impart a bitter taste, DPG is predominantly recommended for use in black or dark-colored rubber articles and industrial applications, rather than white or light-colored products or those intended for food contact. Its versatility also extends to latex applications, where it serves as a secondary gelling agent or foam stabilizer in processes like the silico-fluoride foam method.

For industries seeking a reliable DPG rubber accelerator manufacturer and supplier, NINGBO INNO PHARMCHEM CO.,LTD. offers high-quality Diphenyl Guanidine (CAS 102-06-7) that consistently meets stringent industry specifications. Our product is available in various forms, including powder and granular, ensuring flexibility for diverse manufacturing needs. We pride ourselves on delivering a product with excellent purity, characterized by an initial melting point of 145.0ºC min and low levels of loss on drying and ash content.

When considering where to buy DPG rubber accelerator, it is essential to choose a partner committed to quality and consistency. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing superior chemical solutions, ensuring that our Diphenyl Guanidine contributes to the optimal performance of your rubber products. For inquiries regarding DPG rubber accelerator price and detailed product specifications, or to purchase DPG in bulk quantities, please contact us directly. We are your trusted partner for high-performance rubber chemicals, supporting your production needs with reliable supply and competitive offerings.