Generally speaking, SBR can be dissolved in common organic solvents, such as benzene, toluene and xylene. However, due to the complex molecular structure of styrene-butadiene rubber, it takes some time to fully mix with the solvent and reach the dissolved state during the dissolution process.
The specific dissolution time depends on many factors, including particle size, temperature, stirring speed, solvent concentration and so on. Generally speaking, under appropriate conditions, styrene-butadiene rubber can be dissolved in a few hours to dozens of hours.
It should be noted that the dissolution rate of SBR is also affected by other factors, such as the choice of solvent, soaking time, and the shape of rubber (such as powder, particles or sheets). Therefore, in specific experiments or applications, it is suggested to carry out experiments and adjustments according to actual needs and conditions to ensure full dissolution.