Thaib, Hamdi (2025) Pengaruh Variasi Campuran Serbuk Tembaga Dan Grafit Terhadap Konduktivitas Listrik, Kekuatan Bending Dan Mikrostruktur Pada Plat Konduktor Polimer. Other thesis, Universitas Islam Riau.

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Abstract

Polymer conductor plates are the result of fabrication of the Polymer Matrix Composite (PMC) type made from non-metallic particles and polymers as the matrix. One of the materials that is good at conducting electric current such as copper. This study was conducted to see the effect of variations in the mixture of copper and graphite powders on electrical conductivity, bending strength and microstructure on polymer conductor plates. This study carried out variations in the mixture of copper powder, graphite and epoxy resin which were different starting from 15%: 75%: 10%, 20%: 70%: 10% and 25%: 65%: 10%. The results of the highest electrical conductivity and bending strength tests occurred in sample 3 with a variation of a mixture of 25% copper powder, 65% graphite and 10% epoxy resin. This is because the influence of a larger copper powder mixture results in less resistance occurring on the polymer conductor plate. If the resistance is small on the polymer conductor plate, it makes it easier to pass electric current, the lower the resistivity value causes the ability of the polymer conductor plate to pass electric current better so that the electrical conductivity value on the polymer conductor plate increases and the bending strength value is high because copper is a metal that can be easily formed so that it can withstand loads or forces in the same direction. This event is seen from the results of the microstructure test, where the greater the copper mixture, the higher the electrical conductivity and bending strength values.

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