DPD SIMULATION OF SELF-HEALING PROCESS OF NANOCOATING

Biological systems have the ability to heal wounds and this analogy could also be applicable in materials damage. The surface defects of the material are difficult to detect and difficult to repair. Recent research of the nanocontainers with process of self-healing materials promises a good avenue for new smart nanocoating interfaces. We use Dissipative Particle Dynamics (DPD) computer simulation method to investigate coating substrates that contain nanoscale defects with nanocontainers filled with healing agents. The numerical simulation uses the three usual DPD forces: repulsive, dissipative and random forces, as well as additional forces for process of polymerization inside random positioned cracks in the nanocoating layer. The initial results show the process of breaking of nanocontainers and realization of healing agents with initial polymerization of the outside particles. The future application of DPD simulation coupled with risk assessment technology could help faster development of new active multi-level protective systems for future vehicle materials.