This analysis of an industrial rubber sample was conducted using a Simultaneous Thermal Analyzer, specifically the STA PT 1600, commencing in a nitrogen atmosphere. The sample underwent a controlled heating process with three stages, each with a heating rate of 30 Kelvin per minute.

The plotted blue curve illustrates the relative weight loss. In the initial weight loss stage, the sample underwent dehydration, resulting in a 9.3% reduction in weight. Notably, this dehydration process did not produce any discernible effects in the corresponding DTA (Differential Thermal Analysis) signal, as indicated by the purple curve.

The second stage involved the release of volatile components through pyrolysis under a nitrogen atmosphere. This phase saw a significant weight reduction of 36.0%. The release of these components was accompanied by an exothermic reaction peak on the DTA curve.

In the final stage, the atmospheric conditions were switched to oxygen (O2), leading to the combustion of the remaining carbon content. This resulted in a further weight loss of 14.3%. The remaining 40.4% of the sample’s weight consisted of inorganic components, such as ashes, slake, or fillers. This comprehensive analysis provides insights into the composition and behavior of the industrial rubber sample under varying thermal conditions.