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Dynamic Rheometry (DR)


Our TA Instruments AR-G2 equipped with a liquid nitrogen cooling and electrically heated plates (both upper and lower) can be used for measurements from subambient temperatures to 600°C at heating and cooling rates between 0.1 and 20 K/min using frequencies from 0.01 Hz to 200 Hz. Using the time-temperature-superposition principle, the frequency range can be further extended to lower and higher frequencies.

Measurements can be done using prallel plates, cone-and-plate, or other geometry options. In addition to isothermal and non-isothermal experiments and frequency sweep experiments, stress relaxation and creep measurements can be performed.

For the determination of the visco-elastic properties of solids and stiff rubbers, dynamic mechanical analysis can be used.