Print Email Facebook Twitter Self-healing processes in ionomeric elastomers Part of: ICSHM 2013: Proceedings of the 4th International Conference on Self-Healing Materials· list the conference papers Title Self-healing processes in ionomeric elastomers Author Hohlbein, N. Pelzer, T. Nothacker, J. Von Tapavicza, M. Nellesen, A. Datta, H. Schmidt, A.M. Date 2013-06-16 Abstract The use of dynamic bonds in self-healing polymeric systems allows restoring of the chemical structure and mechanical properties multiple times. In this respect, the use of ionomers represents a promising approach. The strong interaction between ionic moieties within a non-polar matrix leads to microphase separation and a behavior similar to covalent crosslinks in a thermally reversible network. The implementation and parameter optimization, however, requires a profound understanding of the structure-property relationships. Motivated by recent findings on the excellent self-healing behavior of ionomeric NBRbased systems, we report on an ionomer model system designed to explore the thermal and viscoelastic properties of these materials by varying the ionic content, neutralization degree and nature of counter-ions. The dynamic mechanical properties of the materials are investigated by rheological oscillation measurements in dependence on the ionic content and the nature of cation. The temperature-reversible formation of ionic cross-links, an essential feature for the ability of extrinsic self-healing by thermal activation, is shown to be possible by incorporation of magnetic nanoparticles. The transfer of the basic results to NBR elastomers is successfully demonstrated. Subject self-healing elastomersionomersdynamic bondsrheology To reference this document use: http://resolver.tudelft.nl/uuid:a735454f-f5e3-4048-867f-0cc8771e5b51 Part of collection Conference proceedings Document type conference paper Rights (c) 2013 Hohlbein, N.; Pelzer, T.; Nothacker, J.; Von Tapavicza, M.; Nellesen, A.; Datta, H.; Schmidt, A.M. Files PDF Schmidt.pdf 578.38 KB Close viewer /islandora/object/uuid:a735454f-f5e3-4048-867f-0cc8771e5b51/datastream/OBJ/view