Summary
The thermal behavior of several formulations consisting of ethylene-propylene elastomers and acrylonitrile-butadiene rubber was investigated by differential scanning calorimetry. The sample compositions cover the whole concentration range of ((EPDM, EPR)/NBR = 100/0, 20/80, 40/60, 60/40, 80/20 and 0/100). The evaluation of molar enthalpies for studied polymer blends allowed to calculate molar capacities at various temperatures from 335 K up to 450 K. Due to the lack of additivity in the molar capacities of studied blends, the contributions of each component to the overall values of Cp are calculated. The dependency of component contributions on their concentrations follows a first order function, which explains the existence of a certain interaction between components.
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Zaharescu, T., Meltzer, V., Pincu, E. et al. Thermal study on binary blends of ethylene-propylene elastomers and acrylonitrile-butadiene rubber. Polym. Bull. 58, 683–689 (2007). https://doi.org/10.1007/s00289-006-0706-0
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DOI: https://doi.org/10.1007/s00289-006-0706-0