Print Email Facebook Twitter Understanding the molecular mechanisms involved in the interfacial self-healing of supramolecular rubbers Part of: ICSHM 2013: Proceedings of the 4th International Conference on Self-Healing Materials· list the conference papers Title Understanding the molecular mechanisms involved in the interfacial self-healing of supramolecular rubbers Author Bose, R.K. Garcia Espallargas, S.J. Van der Zwaag, S. Date 2013-06-16 Abstract Supramolecular rubbers based on 2-aminoethylimidazolidone and fatty acids with epoxy crosslinks have been shown to self-heal via multiple hydrogen bonding sites. In this work, several tools are used to investigate the molecular mechanisms taking place at the interface to understand cohesive healing in these polymers. The quantification of self-healing was performed via a tapered double cantilever beam (TDCB) geometry. The TDCB geometry is especially amenable to studying multiple healing cycles due to the fracture toughness, and subsequently healing efficiencies being independent of crack length. Healing was carried out for multiple fracturehealing cycles and varying fracture testing experimental parameters to track the change in efficiency of interfacial healing. Strain rate and rate of crack closure are both shown to affect the self-healing efficiency. Subject supramolecular rubbersself-healing efficiencytapered double cantilever beamrheology To reference this document use: http://resolver.tudelft.nl/uuid:76fcf44f-c529-44f6-8c5b-7cf7bd4d53b9 Part of collection Conference proceedings Document type conference paper Rights (c) 2013 Bose, R.K.; Garcia Espallargas, S.J.; Van der Zwaag, S. Files PDF Bose.pdf 567.15 KB Close viewer /islandora/object/uuid:76fcf44f-c529-44f6-8c5b-7cf7bd4d53b9/datastream/OBJ/view