Dynamo-mechanical analysis of rubbers with mineral fillers in comparison with fillers widely used in the tire industry

Abstract

The work is devoted to the study of nanocomposites based on synthetic (styrene-butadiene) rubber with different fillers not previously used. The issue of using composites with alternative fillers is being investigated. The results of experimental testing and analysis of thermo-visco-elastic behavior of styrene-butadiene rubbers filled by various mineral particles of micro and nanosize, as well as pyrolysis products of organic food waste, are presented. The filled elastomers discussed in this work are mainly used in the tire industry to improve the performance of tires. All samples were tested on a dynamo-mechanical analyzer (DMA). Temperature and frequency dependences of the dynamic modulus and loss modulus are plotted for each of the composites. The frequency characteristics corresponded to the real range of rotation speeds of the car wheel, and the temperature varied from –50 to +50ºC. A comparative analysis of the results obtained was carried out. The structural mechanisms of the filler are not investigated. It is assumed that the principles of operation of the investigated fillers at the structural level are similar to those described in many works for classical fillers. Based on the test results a conclusion about the preferable operating conditions for the considered materials was made.