Abstract

Research Article

Investigate the Effect of Coating Concentration and Coating Thickness on the Anti-microbial Properties of Polycarbonate Sheet

Saleh Alkarri

Published: 29 May, 2024 | Volume 8 - Issue 1 | Pages: 011-020

This paper investigates the effect of coating concentration (ppm), and coating thickness (µm) on the anti-microbial properties of polycarbonate sheets using a variety of anti-microbial agents 
(Cu-infused Mg(OH)2, Mg(OH)2, Cu(OH)2, MgO, CuCl2.2H2O, and ZnO). In addition, a complete analysis was performed for all agents to rank the best agent in terms of the highest anti-microbial performance against E. coli K-12 MG1655 in two time intervals (4 and 24 hours). The coating concentration (ppm) was found to be a significant factor in the anti-microbial characteristics for Cu-infused Mg(OH)2, Mg(OH)2, Cu(OH)2, MgO, CuCl2.2H2O, and ZnO (p = 0.004, p < 0.0001, p < 0.0001, p = 0.0297, 
p = 0.0011, and p = 0.0130 respectively). The coating thickness (µm), on the other hand, was found to be a major contributor to the anti-microbial properties of Cu-infused Mg(OH)2, Mg(OH)2, Cu(OH)2, MgO, and CuCl2.2H2O (p < 0.0001, p = 0.0004, p = 0.0011, p = 0.0310, and p < 0.0001 respectively). The analysis determined that the coating did not influence the anti-microbial properties of ZnO. The interaction between the coating concentration (ppm), and the coating thickness (µm) was found to be a significant factor for Cu-infused Mg(OH)2, Cu(OH)2, MgO, CuCl2.2H2O, and ZnO (p < 0.0001, 
p = 0.0001, p = 0.0004, p < 0.0001, and p < 0.0001 respectively), however, this was not a significant factor for Mg(OH)2.
Highlights
•    The anti-microbial activity of the inorganic material is dependent on the particle shape and size.
•    Particles with sharp edges will provide additional physical injuries to the microorganisms.
•    Smaller particle size will provide higher surface area therefore better interaction with microorganisms.
•    The coating concentration and coating thickness will be crucial to the anti-microbial activity.
•    The thermal embossing techniques demonstrate good adhesion to the surface.

Read Full Article HTML DOI: 10.29328/journal.abse.1001029 Cite this Article Read Full Article PDF

Keywords:

Anti-microbial activity; E. coli K-12 MG1655; Thermal embossing; Coating concentration; Coating thickness

References

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