Effect of Mixing Conditions and Montmorillonite Content on the Mechanical Properties of a Chloroprene Rubber

The effect of organomodified montmorillonite (MMT) content and mixing conditions on the mechanical properties, structure, morphology a chloroprene rubber was investigated. Nanoparticles were mechanically mixed with plasticizer, followed by ultrasonic homogenization before compounding all ingredients mixtures in two-roll mills. Mechanical tests carried out samples prepared three sonication amplitudes containing different amounts montmorillonite. tensile strength energy to break found increase 15 70%, respectively, at highest nanoclay but crack growth rate tearing decreased. Variations amplitude MMT did not influence DSC TGA thermograms, confirming an unchanged thermal stability nanocomposites. led more uniform homogeneous morphologies, clay nanoparticles well dispersed embedded matrix.