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Abstract

This article explores the electrical properties of a polymer polymethyl methacrylate (PMMA) doped with lithium chloride (LiCl). In general due to their low electrical conductivity, polymers are common for used as insulating materials. PMMA is one of the polymers that have been widely used in electrical and insulating applications due to its distinguished electrical, dielectric, and optical properties, especially after being impregnated with some materials. One of the key objectives of this study is to develop electrical devices using enhanced polymeric materials. The experimental procedure involved preparing thin film samples using the casting method under normal conditions. PMMA polymer was doped with a 0.2% weight ratio of LiCl. Thin film samples were prepared using the casting method under normal laboratory conditions. The samples were thermally treated at different temperatures then treated samples included within an RCL load circuit connected in parallel. Our investigation focused on evaluating the resistance, capacitance, impedance, and dielectric constant of the PMMA/LiCl material using a load circuit operating at low frequencies and comparing these values with values obtained of pure polymer. The obtained results demonstrated significant enhancements in the electrical properties of the polymer, particularly in terms of charge storage at specific temperatures.

Keywords

Casting technique, Dielectric, Doped polymers, Electrical properties, Glass transition temperature, PMMA/LiCl

First Page

557

Last Page

565

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Receive Date

5-19-2023

Revise Date

1-30-2024

Accept Date

2-1-2024

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