Effect of electric field distribution of polymer nanocomposites under different filler size using FEMM 4.2 software

Rosli, Balqis (2024) Effect of electric field distribution of polymer nanocomposites under different filler size using FEMM 4.2 software. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

High voltage insulation holds significant importance in the realm of electrical systems, playing a crucial role in ensuring the safety, reliability, and efficiency of power transmission and distribution networks. Polymer nanocomposites, when used as insulating materials, have shown promising properties for applications in electrical insulation. These ingenious materials, formed by incorporating nanofillers (typically ranging from 1 to 100 nanometers in size) into a polymer matrix, offer a captivating blend of enhanced properties, with the distribution of the electric field playing a crucial role in their performance. However, the distribution of electric fields within these composite materials is also affected by filler characteristics such as size and concentration. In this study, finite element modelling was used to investigate the effect of nanoparticle size on electric field distribution in polymer nanocomposites. Polyethylene matrix composites containing spherical silica nanoparticles of sizes ranging from 20nm, 40nm, 60nm, 80nm and 100nm were modelled and simulated using FEMM 4.2 finite element software. An interphase region between the nanoparticle and matrix was also included. For this project, the interphase used were 10nm and 20nm. Simulation results showed that electric field intensity increased with larger nanoparticle sizes. The electric field distribution is a critical aspect of high voltage insulator performance, as it directly influences the material's ability to withstand electrical stress. Hence, it can be concluded that by increasing the nanoparticle size will increase electric field intensity. The increment of electric field intensity could affect the or lead the tendency of material to breakdown.

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