Characterization of indium zinc oxide coating on kenaf fiber

Rozali, Fatin Nadhirah (2018) Characterization of indium zinc oxide coating on kenaf fiber. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Electromagnetic interference shielding is becoming an important issue as electronic devices become more widely used in our living environments. Traditionally, electromagnetic interference shielding materials have been made mainly from metals due to their good mechanical and electrical properties. However, metals are commonly susceptible to corrosion and high in density and manufacturing cost. The use of surface modified kenaf fiber can solve these problems. The purpose of this study is to characterize kenaf fiber coated with indium zinc oxide (IZO) as a method to increase its electrical conductivity, which is prerequisite for electromagnetic interference shielding application. The coating of IZO film on non-woven kenaf was studied by experimenting the effect of dipping time in IZO solution on non-woven kenaf via simple dip coating method. Kenaf samples were directly dipped into indium zinc oxide solution at five different periods of time that is 10, 20, 30, 40 and 50 minutes before dried and annealed. The final products of indium zinc oxide coated fiber were analyzed based on its morphological and elemental studies. From the results, it shows that the simple dip coating is an applicable technique for deposition indium zinc oxide on nonwoven kenaf as a conductive coating. The optimum dipping time for the coating is 10 minutes and the optimum annealing temperature is 150 °C. The study is significant as the research output is expected to be potentially used as a more sustainable, low weight and cost effective, electromagnetic interference shielding material. Realization of this study is the first step towards the application of kenaf-based products in the electronics industry.

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