PENINGKATAN NILAI KONDUKTIVITAS LISTRIK, KEKERASAN DAN KEKUATAN TARIK KOMPOSIT G150/EPOKSI MENGGUNAKAN PENEKANA PANAS

Abstract

The development of research on composite matrix polymer (PMC) continues to be developed to obtain materials (PMC) that have high stiffness and strength, light weight, corrosion resistance and high conductivity value. This study aims to increase the electrical conductivity, hardness and high tensile strength by hot molding process at 130oC, 160oC with time 60.90 and 120 minutes, mold length 110 mm, width 63 mm, 12 mm thick and 50 presses Kg / cm2. PMC uses 150μm Graphite as filler and Epoxy / Hardener (hardener) as matrix. Variations of 150μm / Epoxy Graphite compositions of 80/20, 75/25, 70/30, 75/35 were mixed using a mixer with a time of 10 minutes at 200 rpm rotation then molded and pressed on a hot press molding device. From the variation of composition, time and temperature applied, obtained the value of electrical conductivity and good mechanical strength at the fourth composition with a heating time of 120 minutes with temperature 160oC for electrical conductivity value of 41,423 S.cm-1, tensile strength value 29,781 N / mm2 And 95.8 HD hardness.

Keywords : Polymer Composites, Epoxy Resins, Electrical Conductivity, and Mechanical Strength