Title: Enrichment of epoxy coating system with modified shell ash

Authors: Aarti P. More; Shweta Y. Amrutkar; Shashank T. Mhaske

Addresses: Department of Polymer and Surface Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, India ' Department of Polymer and Surface Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, India ' Department of Polymer and Surface Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, India

Abstract: The ash of groundnut shell, cashew nut shell, tamarind shell, rice husk and sugarcane bagasse has been used as a modifier for epoxy-amine coating. The ash has been made by the calcination process. Then it was surface treated to introduce amine functionality on the periphery. The ash has been added at 1%, 3% and 5% (w/w) of the total binder system. The ash has been characterised by Fourier transform infrared spectroscopy (FTIR) and x-ray diffraction analysis (XRD) for the confirmation of its surface treatment. The coating has been characterised for mechanical performance, chemical resistance and anticorrosive properties. It is seen that with the addition of ash, hardness properties of the coating enhances. In anticorrosive performance it is observed that with the addition of ash, the anticorrosive performance of the virgin coating increased. The ash enriched with inorganic elements silicone dioxide (SiO₂), magnesium oxide (MgO), zinc oxide (ZnO), aluminium oxide (Al₂O₃), ferric oxide (Fe₂O₃). These are the key components to enhance the hardness properties and anticorrosive performance of the coating.

Keywords: epoxy coating; shell ash; natural resources; waste management; modification of coating.

DOI: 10.1504/IJEWM.2018.091310

International Journal of Environment and Waste Management, 2018 Vol.21 No.1, pp.58 - 79

Received: 31 Jan 2017
Accepted: 22 Sep 2017
Published online: 24 Apr 2018 *

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