Abstract: Thermogravimetric analysis was used to analyzed the pyrolysis kinetics of the flowers, leaves and stems of the thermoplastic artificial plants. Coats-Redfern method and Gorbatchev method were used to select the optimal mechanism function model to establish the model. The activation energy and pre-exponential factor were obtained and the accuracy of the two methods were compared. The results showed that the pyrolysis of the flower and leaf parts of the simulated plants was in one stage under nitrogen atmosphere, but the pyrolysis of the stems was in two stages. The heat stability of the stems was the lowest, and the heat stability of the leaves was the highest. The reaction activation energy of the simulated three-part sample obtained by the Gorbatchev method is more accurate.

Key words: artificial green plants, pyrolysis dynamics, Coats-Redfern method, Gorbatchev method