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Synthesis of antistatic hybrid nanocomposite coatings using surface modified indium tin oxide (ITO) nanoparticles

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Abstract

Several antistatic nanocomposite hybrid coatings based on epoxy-silane developed by sol–gel method are studied. The hybrid sols are prepared by hydrolysis and condensation of GPTMS and TMOS precursors in the presence of an acid, as catalyst, and EDA as curing agent. Considering their good electrical conductivity, indium tin oxide (ITO) nanoparticles are used as antistatic agents. To improve the distribution/dispersion of ITO nanoparticles in the polymer matrix, the surface of nanoparticles is modified with silane groups (m-ITO). The antistatic properties of the coatings, containing various amounts of m-ITO nanoparticles, are investigated through surface electrical resistivity measurements. FTIR is used to screen the reaction of epoxy groups and the effect of EDA on crosslinking in the hybrid coatings. Morphology, nanoparticle distribution and surface roughness of the coatings are studied through SEM and AFM microscopy techniques. Also, homogeneous distribution of ITO nanoparticles within the polymer matrix is confirmed by EDXA elemental mapping. The cubic shape and nanometric size of the nanoparticles in the hybrid coatings are monitored by transmission electron microscopy (TEM).

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Authors and Affiliations

  1. Iran Polymer and Petrochemical Institute, P.O. Box 14956/115, Tehran, Iran

    Mostafa Jafari, Azam Rahimi, Parvin Shokrolahi & Amir Ershad Langroudi

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  1. Mostafa Jafari
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  2. Azam Rahimi
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  3. Parvin Shokrolahi
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  4. Amir Ershad Langroudi
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Correspondence to Azam Rahimi.

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Jafari, M., Rahimi, A., Shokrolahi, P. et al. Synthesis of antistatic hybrid nanocomposite coatings using surface modified indium tin oxide (ITO) nanoparticles. J Coat Technol Res 11, 587–593 (2014). https://doi.org/10.1007/s11998-013-9555-6

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