Abstract
Transparent plastics are not scratch resistant. The damage leads to a loss of optical properties. Coatings prepared using either tetraethoxysilane or colloidal silica particles embedded in “glymo” is a way to avoid these disadvantages. Tribological experiments are carried out to better understand the surface modification due to a sliding friction. It is shown that the wear track is not directly related to usual mechanical properties such as Young's modulus and the hardness of the coating. The different stages leading to material loss are discussed in term of particle removal and debris circulation (accumulation or elimination) through the friction track. The mechanical properties of the film combined with the film to substrate adhesion are expected to play an important role as it can be deduced from results obtained as a function of the coating composition.
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Etienne, P., Denape, J., Paris, J.Y. et al. Tribological properties of ormosil coatings. J Sol-Gel Sci Technol 6, 287–297 (1996). https://doi.org/10.1007/BF00402701
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DOI: https://doi.org/10.1007/BF00402701