An electrothermal heater of thermally conductive, electrically insulating polymer material

摘要

It is to be thermally conductive films, composite materials, the films, and an electrothermal heating devices is disclosed, the films include. The films a polymer and a sufficient concentration of hexagonal boron nitride, in order to provide appropriate heat transfer properties, and they have a high thermal conductivity, peel strength and resistance to. The films may be thermoset polymers, thermoplastic polymers or mixtures thereof, and they can also be electrically conductive materials, reinforcing materials, such as, for example, glass fiber material, carbon fibers, metal braiding 4 and the like, and thermally conductive fillers, such as, for example, aluminum oxide, aluminum nitride and the like. The films can be enclosed in composite materials. The films can be used as part of a layer structure (100) are used, and they can be essentially in the case of any use can be used, for example at different locations in the aircraft, where a heater is desirable, including the outer skins of the engine pods, wing of the aircraft, heated floor panels and the like. The electrothermal heating devices provide a more uniform heat and a more rapid heat than the current resistance heating devices, which is made of metal foils are formed, which adhere to an adhesive film.