A methodology for building up the model and finding out the relevant experimental testing procedures for elastomers in specific conditions was developed in this project. Beside the model the relevant testing methods suitable for elastomeric materials were built up facilitating wear ranking of relevant elastomeric materials used for commercial purposes.
The objective of the project was to develop and utilize a model for elastomer wear behavior in demanding conditions. The industry-driven objective was to increase the understanding of the friction and wear behavior of elastomers and polymers and the interaction between different materials, loading and environmental parameters in demanding tribological applications in erosive, abrasive, impact and sliding wear contacts. The objective is to provide clear advantage for the companies to launch high quality, cost efficient and environmentally safe products to the market in a reasonable time.
Wear modeling and deeper understanding of the polymers as wear resistant materials can be utilized right away in the industry by doing better material choices in applications. Also better rubber compounds can be developed right away by understanding deeper the effect of different compounding on the wear resistance. Wear modeling gives systematic knowledge of the material behavior
The achieved results are significant because wear modeling and understanding of the polymer wear have been mostly empirical so far. Wear models of the polymers, especially elastomers, cannot be properly found in the literature. The information shown in the literature is also often reductive. For example different rubber compounds are not shown, only basic polymer based information
The project results consist partly of the development of empirical methods to measure the wear resistance. These results have been taken into the model to construct a tool for material wear predictions. The model and the measurement results also can be utilized separately in order to develop wear control technology for severe slurry mineral handling conditions.
Mirva Mustakangas (Teknikum) wear control solutions,
Päivi Kivikytö-Reponen (VTT) wear modeling
Teknikum, Metso, VTT Technical Research Centre of Finland and Tampere University of Technology