Preparation And Characterization Of Modified Polyaniline- Graphene Nanoplatelets (PANI I GNPs) Nanocomposites Via Acid Protonation Method

Ab. Majid, Aliah (2020) Preparation And Characterization Of Modified Polyaniline- Graphene Nanoplatelets (PANI I GNPs) Nanocomposites Via Acid Protonation Method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Previously, the conductive patch of antenna is made from copper, which are inflexible, expensive, multi-fading phenomena, bulky, environmental sensitive and difficult to manufacture. Miracle nanotechnology of grapheme owing to their extraordinary electrical conductivity and superior strength than metal, but flexible, has allowed them to be a potential candidate replacing uncompromis ing copper metallic. Furthermore, the main drawback of graphene is lack of energy band gap which close down many electronic device potential applications. Hence, in this research, graphene nanoplatelets (GNP) is incorporated with polyaniline (PANJ) conductive polymers. While dodecylbenzenesulfonic acid (DBSA) use as doping to enhance the prope1ties of PAN!. Wearable fabrics as flexible body signal receiver type antennas, are overwhelmed research topics for body centric communication in an industrial revolution 4.0 (IR4.0) era. Wearable textile antenna applications are expanding quickly, especially for mobile computing, tracking navigation and public safety. This study is to evaluate the potential of novel formulation of graphene nanoplatelets/polyaniline (GNPs/PANI) conductive nanocomposites for the new generation of flexible wearable textile antenna. GNPs/PANI nanocomposites solution has been synthes ized by a niline polymerization in an acidic medium. The effects on GNP loading (0.25 wt%, 0.50 wt%, 0.75 wt% and 1.00 wt %) on antenna radiating properties for PANJ/GNPs/DBSA textile na nocornposite has been characterized and evaluated using standard mo rphological, physical and electrical characterization method. The combination of PANI and GNPs are perfecting each other, enhancing the existing electrical conductivity properties,while open up other potential characteristics especially for robust wearable antenna development. The simulated wearable textile antenna such as return loss, radiation pattern and antenna gain had been investigated. From this research, new materials formulation of PANl/GNPs/DBSA textile nanocomposites and related fundamental understanding for such application, and standard methodological approach for smart clothing wearable antenna fabrication was established.

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