Surface engineering of boron nitride nanotubes for use as advanced fillers in the tire industry

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Inelastic effects cause rolling resistance in tires. Because of this, a portion of the energy that should be used for movement is lost as heat. These energy losses have direct repercussions on a vehicle's fuel economy. Moreover, certain additives used to reduce tire wear may actually accentuate the hysteresis effects that cause rolling resistance. Next generation additives could serve a hybrid role: reduce wear while preventing rolling resistance and its corresponding energy losses. Boron nitride nanotubes are a new class of nanomaterials that may be able to tackle this challenge. Until recently, these were only synthesized at a very small scale, limiting their industrial interest. However, Tekna Plasma Systems has recently developed a large-scale production process, that would allow potential users such as Michelin to benefit from an appropriate and stable supply. In order to ensure compatibility between producers and users, we propose a collaborative research project whereby Tekna's boron nitride nanotubes will be extensively studied and surface modified in order to facilitate their incorporation into Michelin's elastomeric rubber formulations. Upon completion, this project will bring about substantial benefits for Quebec and Canada, through the development of a new market for Quebec-based Tekna and increased activities at Michelin North America (Canada)(the branch specializing in advanced tire additives).