Title: Application and anti-bacterial performance evaluation of liquid glass coating

Authors: Bingjie Xiao; Ayman Ibrahim; Xiao Huang; Rong Liu

Addresses: Carleton University, Department of Mechanical and Aerospace Engineering, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada ' Carleton University, Department of Mechanical and Aerospace Engineering, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada ' Carleton University, Department of Mechanical and Aerospace Engineering, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada ' Carleton University, Department of Mechanical and Aerospace Engineering, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada

Abstract: Liquid glass (LG) coating, supplied by Liquid Glass Shield Company, is capable of enhancing the wear resistance of surfaces without altering the surface features. Additionally, the coating contains ethanol that acts as an anti-microbial agent. In this study, LG is deposited on nickel substrate to investigate its ability to impede bacterial growth. The coating is applied using a spin coater and followed by a furnace curing process. The coating is then tested for bacterial growth through the deposition of a known type of bacteria onto the cured coating surface. The liquid glass coating has shown enhanced anti-bacterial ability when compared to bare nickel surface. However, the anti-bacterial ability of LG is slightly lower than that of brass alloys.

Keywords: liquid glass coating; anti-bacterial performance; E.coli colony-forming unit; nickel; brass; benzalkonium chloride; sodium pyrithion.

DOI: 10.1504/IJMPT.2018.092075

International Journal of Materials and Product Technology, 2018 Vol.56 No.4, pp.326 - 340

Received: 16 Mar 2016
Accepted: 14 Mar 2017
Published online: 31 May 2018 *

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