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Mechanical characterization of Ormosil films on plastics: Young's modulus determination by three points bending

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Abstract

A protective layer has been deposited to improve the scratching properties of polycarbonate organic glasses. The starting solution consists of a mixture of organosilicon compounds, silicon alkoxides or silica colloidal solutions. The deposition is carried out using the dip coating technique. The thickness is about 2–5 µm for the film and 1 mm for the substrate.

Young's moduli of the films are obtained by a new three points bending apparatus. Young's modulus of coating depends both on silica content and on the nature of the silica used as a filler.

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Authors and Affiliations

  1. Laboratoire de Science des Matériaux Vitreux, UA 1119, Université Montpellier II, Place Eugène Bataillon, 34095, Montpellier Cedex 05

    P. Etienne, R. Sempéré & J. Phalippou

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  1. P. Etienne
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  2. R. Sempéré
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  3. J. Phalippou
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Etienne, P., Sempéré, R. & Phalippou, J. Mechanical characterization of Ormosil films on plastics: Young's modulus determination by three points bending. J Sol-Gel Sci Technol 2, 171–173 (1994). https://doi.org/10.1007/BF00486235

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  • DOI: https://doi.org/10.1007/BF00486235

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