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Home / Journal of Nanoscience and Nanotechnology, Volume 16, Number 9

Effect of Nanoparticles on the Thermal and Mechanical Properties of Epoxy Coatings

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Epoxy coatings incorporated with several nanoparticles, such as nano-SiO2, nano-Fe2O3, nanoclay and nano-TiO2, were synthesized on the surface of steel substrates by solvent sonication and room-temperature curing of fully mixed epoxy slurry. The morphologies of the epoxy nanocomposite coating were investigated using transmission electron microscopy (TEM). The effects of incorporating various nanoparticles on the thermal properties of epoxy-coated steel were investigated using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The effect of nanoparticles on the mechanical properties of the epoxy was investigated using adhesion strength and ball impact tests. TEM results showed that the nanoparticles (especially nano-TiO2) were dispersed homogeneously into the entire volume of the resin. DSC and TGA studies revealed that nanoparticles resulted in improved cross-link density, as evidenced by the increased glass transition temperature. Nano-TiO2 increased the T g value of the epoxy coating from 58 °C up to 170 °C. Epoxy nanocomposites modified by nano-ZnO possessed the best thermal stability. The impact test results showed that the incorporation of nanoparticles (especially nano-TiO2 can improve the impact strength the epoxy coating significantly. The adhesion strength test data show that the presence of nano-Fe2O3 particles improved the adhesion of the epoxy coatings.

Keywords: Adhesion Strength; DSC; Epoxy Coating; Impact Strength; Nanoparticle; TEM; TGA

Document Type: Research Article

Affiliations: 1: Institute for Tropical Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 122300, Vietnam 2: Department of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 122000, Vietnam 3: Department of Civil and Environmental Engineering, Sloan 101, P.O. Box 642910, Washington State University, Pullman, WA 99164-2910, USA

Publication date: 01 September 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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