Rubber Accelerator DBTU, chemically known as N,N-Dibutyl thiourea, stands as a pivotal chemical additive in the modern rubber industry. With its CAS number 109-46-6 and molecular formula C₉H₂₀N₂S, this compound plays a critical role in optimizing the vulcanization process, thereby enhancing the final properties of various rubber products. Produced and supplied by NINGBO INNO PHARMCHEM CO.,LTD., this high-quality material is essential for manufacturers aiming for superior performance and consistency.

DBTU typically presents as a white or light yellow crystal powder. Its physical characteristics, such as a density of 1.06 g/cm³, contribute to its ease of handling and incorporation into rubber compounds. While soluble in alcohol and partly soluble in diethyl ether, it exhibits insolubility in water, a property that can be advantageous during compounding and processing.

The primary application of Rubber Accelerator DBTU is its function as a powerful accelerator in the vulcanization of rubber. It is particularly renowned as an ultra-accelerator for mercaptan-modified CR (Chloroprene rubber) when used in low dosages, typically between 1 to 3 parts per hundred parts of rubber (phr). Its vulcanization behavior in CR is often compared to that of other accelerators like ETU and DETU, offering similar efficiency and reaction profiles. Furthermore, DBTU is effectively utilized as a secondary accelerator for both NR (Natural rubber) and various synthetic rubbers, contributing to improved cure rates and overall process economics.

One of the significant advantages of using Rubber Accelerator DBTU is its excellent dispersion characteristics within rubber matrices. This leads to a more homogeneous compound mix, which in turn results in uniform vulcanization throughout the product, minimizing variations and ensuring consistent quality. Additionally, DBTU is valued for being non-staining, making it suitable for use in light-colored or transparent rubber goods where discoloration is a concern. It also does not exhibit blooming, preventing the migration of the accelerator to the surface of the finished product, which can affect aesthetics and surface properties.

Beyond its role as a vulcanization accelerator, DBTU offers supplementary benefits to rubber formulations. It functions as an effective antioxidant for Natural Rubber, helping to protect it from degradation caused by oxygen and heat, thus extending the service life of the rubber article. It also serves as an antiozonant for both NR and synthetic rubbers, particularly SBR (Styrene-Butadiene Rubber), providing crucial protection against ozone cracking, a common mode of failure for rubber exposed to atmospheric ozone.

Quality control is paramount in the production of rubber chemicals. Rubber Accelerator DBTU supplied by NINGBO INNO PHARMCHEM CO.,LTD. adheres to stringent specifications to ensure optimal performance. Typical specifications for the powder form include an initial melting point of not less than 60.0ºC, a loss on drying (moisture content) of not more than 0.30%, and an ash content not exceeding 0.30%. The residue on an 840μm sieve is typically controlled to 0.00%, indicating a finely processed powder suitable for easy dispersion. Oiled powder grades may have slightly different specifications, particularly regarding loss on drying and the presence of an additive to improve handling and reduce dust.

Proper packaging and storage are essential to maintain the quality and efficacy of Rubber Accelerator DBTU. It is commonly supplied in 25kg packages, which may include plastic woven bags, paper bags with plastic film liners, or 25kg drums. These packaging types are designed to protect the product from moisture and environmental factors. Storage recommendations specify keeping the product in a dry and cool place with good ventilation, away from direct sunlight. It is advised not to stack palletized material or expose the product to temperatures above 35ºC, as this can lead to unusual compaction and potentially affect its properties. Under these recommended storage conditions, the validity period of DBTU is typically one year.

The versatile applications and beneficial properties of Rubber Accelerator DBTU make it an indispensable component in the manufacturing of a wide array of rubber products, from tires and hoses to belts and molded goods. Its ability to function effectively in different rubber types, combined with its non-staining and anti-degradation properties, contributes significantly to the production of durable, high-performance rubber articles.

For companies seeking a reliable supplier of high-quality Rubber Accelerator DBTU, NINGBO INNO PHARMCHEM CO.,LTD. offers a consistent and dependable source. As a dedicated manufacturer and supplier of fine chemicals, they are committed to providing products that meet rigorous industry standards. Interested parties looking to buy or purchase this essential rubber chemical can inquire directly. Information regarding the current price, minimum order quantities, and detailed technical data can be obtained by contacting NINGBO INNO PHARMCHEM CO.,LTD. Procuring high-purity DBTU from a reputable source like NINGBO INNO PHARMCHEM CO.,LTD. is a strategic decision for optimizing rubber processing efficiency and ensuring the quality of finished goods.