Chen Fengzhen, Qian Jialin
Department of Chemical Engineering, University of Petroleum, 100083, Beijing, China.
Waste Manag. 2003;23(6):463-7. doi: 10.1016/S0956-053X(03)00090-4.
One kind of Chinese waste tire's sample was pyrolyzed under an inert atmosphere by using thermo-gravimetric apparatus (TGA) and differential thermal analysis (DTA). Different pyrolysis temperature ranges were determined according to the reaction transition temperature obtained by TGA and DTA. Then, at each temperature range, the pyrolysis gaseous products were analyzed by gas chromatography (GC). The influence of the temperature range on the relative yields of the major decomposition products is studied, and a mechanism for the formation of the main components was also investigated. The results indicate that pyrolysis of waste rubber follows the radical mechanism, and the major products are not seriously affected by increasing the temperature from room temperature to 420 degrees C and from 421 to 600 degrees C, but the degradation of blend rubber is different for each of the compositional elastomer.
采用热重分析仪（TGA）和差示热分析（DTA），在惰性气氛下对一种中国废轮胎样品进行热解。根据TGA和DTA获得的反应转变温度确定不同的热解温度范围。然后，在每个温度范围内，通过气相色谱（GC）分析热解气态产物。研究了温度范围对主要分解产物相对产率的影响，并对主要成分的形成机理进行了研究。结果表明，废橡胶的热解遵循自由基机理，从室温升高到420℃以及从421℃升高到600℃时，主要产物不受严重影响，但共混橡胶中各组成弹性体的降解情况不同。
