DefinePK

Abstract

Thermogravimetric Analyzer (TGA) is a device for carrying out thermal analysis where the mass of the test material will be inversely proportional to or directly proportional to the increased temperature rate and time function. TGA is usually used to determine material characteristics. The increasing mass curve of the element of aluminum material can be used to determine oxidation. The point of rising material mass can be used to calculate activation energy. This study has used a Thermogravimetric Analyzer with aluminum test materials from used beverage cans which are melted directly and indirectly with used lubricating fuels. The test results show that the activation energy for direct furnace casting (DF) is 186.2 J/mol and this is greater than indirect furnace casting (IF) which has an E value 92.17 J/mol. Activation energy for CAN cans is 318.8 J/mol, and for used cans without Ink and Varnish Cw/oIV the activation energy is 350 J/mol.