Testing of polymers, like rubber, is done to determine the type of polymer, physical characteristics, mechanical properties, and crucial tests like low temperature testing down to -60°, ozone crack test, abrasion test, tensile test, compression test, etc.

Raw rubber compounds do not show any elastomeric characteristics. The rubber compounds must go through the vulcanization process in order to achieve this, which requires the molecular chains to be crosslinked together. When rubber compounds are being vulcanized, a rheometer is a laboratory tool used to measure their viscoelastic qualities.

ODR (oscillating disc rheometer) and MDR (moving die rheometer) are the two types of rheometers used in the rubber business. However, they serve similar functions.

The compound becomes harder throughout the vulcanization process, which takes place in the cavity. Increase both the force and the torque on the rotor at the same time. Because the rubber has non-Newtonian characteristics, it also has an elastic and viscous component. The degree of vulcanization directly correlates with the shear forces.

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