[Study on thermogravimetric characteristics of simulated medical waste by using TG-DTA-FTIR analysis].

Thermogravimetric behavior of simulated medical waste was studied in the atmosphere of nitrogen and air at different heating rates by thermogravimetric analysis and differential thermal analysis (TG-DTA), and the influence on the thermogravimetric behavior of simulated medical waste by the atmosphere and heating rate was also discussed. The results indicate that the initial separating temperature of the volatile organic matter ( T(s)) moves toward higher temperature and the peak value of the weight loss velocity (DTGmax) has a remarkable increase with the increasing heating rate when simulated medical waste is heated at these two atmospheres. There are two weight loss peaks when the experimental material is pyrolyzed at the atmosphere of nitrogen and the corresponding weight loss rate is about 31% and 59% .