Shin-Etsu Japan KBE-846: A High-Performance Coupling Agent for Rubber and Tire Applications

Rubber and tire manufacturers need to constantly improve the performance, durability, and safety of their products to meet the demands of various applications and markets. One crucial aspect of achieving these goals is the use of effective coupling agents that can enhance the bonding between the rubber matrix and reinforcing fillers such as carbon black, silica, and clay. Among the many options available in the market, Shin-Etsu Japan KBE-846 stands out as a versatile and reliable solution that offers multiple benefits to rubber and tire formulations.

Shin-Etsu Japan KBE-846 is a sulfur-functional organosilane coupling agent that contains four triethoxysilylpropyl groups and four sulfur atoms in its molecule. This unique structure allows KBE-846 to act as both a silane coupling agent and a sulfur donor, facilitating the formation of covalent bonds between the rubber and the filler particles, as well as the crosslinking of the rubber chains. The resulting network structure improves the mechanical properties, such as tensile strength, tear resistance, abrasion resistance, and hysteresis of the rubber compound, while also reducing the rolling resistance and improving the wet traction and braking performance of the tire.

KBE-846 is compatible with a wide range of rubbers, including natural rubber, styrene-butadiene rubber (SBR), polybutadiene rubber (BR), ethylene-propylene-diene rubber (EPDM), and nitrile rubber (NBR). It can also be used with various types of fillers, such as carbon black, silica, clay, and calcium carbonate. The optimal dosage of KBE-846 depends on the specific formulation and processing conditions, but usually ranges from 1 to 5 parts per hundred rubber (phr). KBE-846 can be added to the rubber compound during the mixing stage or as a masterbatch, depending on the preference and convenience of the user.

One of the main advantages of KBE-846 is its superior thermal stability and weatherability, which ensure the long-term performance and durability of the rubber and tire products. KBE-846 can withstand high temperatures, such as those encountered during the vulcanization process, without decomposing or losing its activity. It can also resist the effects of UV radiation, ozone, and other environmental factors that can degrade the rubber and compromise its properties. As a result, KBE-846 can extend the service life of the rubber and tire products, reduce the maintenance costs, and enhance the safety and reliability of the end-users.

Another advantage of KBE-846 is its compatibility with other additives and processing aids commonly used in rubber and tire formulations. KBE-846 can work synergistically with accelerators, activators, antioxidants, antiozonants, and processing oils to optimize the performance and processing characteristics of the rubber compound. KBE-846 can also improve the dispersion and filler loading of the rubber compound, leading to a more homogeneous and efficient curing process. This can result in lower energy consumption, shorter cycle times, and higher productivity for the rubber and tire manufacturers.

In summary, Shin-Etsu Japan KBE-846 is a high-performance coupling agent that offers multiple benefits to rubber and tire applications. Its unique structure allows it to act as both a silane coupling agent and a sulfur donor, facilitating the bonding and crosslinking of the rubber and filler particles. Its superior thermal stability and weatherability ensure the long-term performance and durability of the rubber and tire products. Its compatibility with other additives and processing aids enables the optimization of the performance and processing characteristics of the rubber compound. INNO SPECIALTY CHEMICALS is the manufacturer and supplier of KBE-846 from China, and it provides reliable and cost-effective solutions to the global rubber and tire industry.

News you might interested in