DefinePK

Abstract

Thermogravimetric Analyzer (TGA) is a tool for analyzing thermal where the mass change of test material is measured in proportion to temperature rise and time function (with constant temperature rise rate). TGA is usually used to determine the material characteristics such as polymer. The loss curve of the polymer mass can be used to determine the decomposition of the material, the point of loss of weight, and to calculate the activation energy. This research uses Q500 series Thermogravimetric Analyzer (TGA), with 3 (three) types of polymer materials i.e. PVC, Polypropylene, and Melamine. There are also tests of the above-mentioned polymer types which have been pre-treated thereby further referred to as PVC (x), PP (x), and Melamine (x). The results showed that the heat treatment given before the TGA test had a negative and significant impact on PVC and PP polymer materials, but not significantly against Melamine. Obtained activation energy value from each test material that is E = 66.27 kJ/mol for PVC (x) and E = 63.93 kJ/mol for PVC. E = 62.30 kJ/mol for PP (x) and E = 69.55 kJ/mol for PP. E = 47.40 kJ/mol for Melamine (x) and E = 46.14 kJ/mol for Melamine.