Rubber. Determination of viscosity and stress relaxation using a rotorless sealed shear rheometer
Rubber. Determination of viscosity and stress relaxation using a rotorless sealed shear rheometer
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1 Scope This International Standard describes a method for the determination of the viscosity and stress relaxation of raw or compounded rubber under specified conditions. The viscosity determination consists of a constant strain, temperature and frequency test in which the elastic and the loss components of the complex shear modulus can be determined. The determination of stress relaxation consists of a constant static strain and temperature test in which the torque decrease can be determined.
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