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CarboShield

For reasons of weight savings, the metallic outer shell of airplanes is increasingly replaced with carbon fiber-reinforced polymeric materials. One of the challenges associated with this trend is the decreased electrical conductivity of the shell compared to metal, which is particularly relevant with regard to lightning strikes. The CarboShield project aims to develop innovative protection systems, which eliminate the disadvantages of conventional coating systems during lightning strikes. This goal can be achieved by reducing the electrical puncture strength as a consequence of the homogenous distribution of electrically conductive CNT in the coating matrix. This step minimizes damage to the aircraft structure and reduces the weight of the protective system. Wind power systems can also benefit from these special coatings. Another focus area of the project is the development of improved insulating systems in coatings, which are used, for instance, in highperformance engines, generators, and air-cooled transformers.