Nonlinear Viscoelasticity of ABS Polymers in the Molten State

摘要: Nonlinear viscoelastic properties were measured in the molten state for two series of ABS polymers with rubber particle contents 5, 10, 15, and 20 wt%. Experimental results shear relaxation modulus G(t,γ) obtained at large step strains revealed a striking fact that strain dependence disappears region where long‐time due to particles is dominant. In single‐step stress relaxation, curves are composed contributions, entanglement matrix polymer shorter time scales particles. order separate above double‐step experiments done which first −γ applied t=−t1 second γ added t=0. It shown t1 should be comparable maximum proper evaluation contribution.