Comparative analysis of the operability temperature range lower limit of the three rubbers according to various tests

The aim is to identify the lower boundary of the working range of temperatures for the three rubbers based on various caoutchoucs. Three methods of testing is used: the thermomechanical curves at a constant compressive load and a constant rate of temperature change is dropped by the RPC-70instrument; tests on compression in the harmonic mode oscillation at constant amplitude of force and constant rate of temperature change using is made by the device DMA 242 C; tensile test to rupture at a constant strain rate and different temperature levels is held by testing machine Zwick Z100SN5A. Obtained by different methods of estimating the lower bound of efficiency studied rubbers are close to each other.