Compatibility of TPI and NR blends was calculated by the application of molecular dynamics(MD) and dissipative particle dynamics(DPD) simulation method.The solubility parameters(δ) verse of the different repetitive units of pure substances was calculated by MD simulations with the COMPASS force field and determined a suita-ble one.The cohesive energy density(CED) and Flory-Huggins interaction parameter(χ) in a series of blend ratio of the TPI /NR blends were computed by MD simulations to predict blend misci...