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Using the DTG curve fitting method to determine the apparent kinetic parameters of thermal decomposition of polymers

2001; Elsevier BV; Volume: 73; Issue: 3 Linguagem: Inglês

10.1016/s0141-3910(01)00129-x

1873-2321

J. Yang, R. Miranda, C. Roy,

Polymer Science and PVC

A new method, called the DTG curve fitting method, has been used to determine the kinetic parameters of six major plastic materials found among urban refuse: high-density polyethylene, low-density polyethylene, polystyrene, polypropylene, poly(vinyl chloride), and poly(ethylene terephthalate). This method involves first measuring the weight loss behaviour by using thermogravimetry (TG) and then using the Arrhenius equation to fit the DTG curves obtained from the TG measurement. The kinetic parameter data obtained have been compared to, and agree well, with the literature data. With this method, computer software, named “DTGsim” has been developed, for use under Windows with a user friendly interface.