Dynamic properties of butadiene styrene rubbers with layered silicates

Abstract

In our study, modification of SBR-1705 butadiene styrene latex using a variety of bentonite clay variants was carried out Among them were domestic sodium bentonite, domestic bentonite pretreated with surfactants (surfactants), as well as organoclays based on foreign layered silicates and also treated with surfactants at the coagulation stage with subsequent rubber release. Further, within the framework of our study, we carried out a detailed comparative study of physical and mechanical properties of rubbers produced using modified butadiene-styrene rubbers. We considered rubbers containing different variants of bentonite, including both domestic origin and imported bentonite. The dynamic properties of these rubbers, including elastic modulus and mechanical loss angle tangent, were analyzed using dynamic thermomechanical analysis (DTMA). The study found that the rubber samples containing PT clay and Cloisite 30B showed a 20% reduction in mechanical loss tangent within the operating temperature range. This indicates an improvement in the mechanical properties of the rubber under a variety of operating conditions. In addition, rubber samples containing imported layered silicates and treated with surfactants exhibited increased strength both before and after thermo-oxidative aging at 150°C. These results emphasize the importance of silicate and surfactant composition selection in developing rubbers with improved mechanical properties and durability. The findings of this study have important implications for industry and academia, emphasizing the role of proper bentonite selection and processing in creating rubbers with optimal performance for a variety of applications