This work reports the thermal degradation behaviour, kinetics and thermodynamics of two different eco-friendly plastics, viz. non-woven plastic and corn starch-based biodegradable plastics, which are commonly used nowadays as an alternative to synthetic plastics. In this context, thermogravimetric analysis of plastic waste samples was carried out at wide range of heating rates of 10, 20, 40, 60, 80 and 100 °C/min in nitrogen atmosphere, and activation energy is determined by first-order model-fitting method while thermodynamic parameters are determined on the basis of Eyring theory of activated complex. The regression coefficient obtained from kinetic study of thermal degradation of these plastics best fits to the first-order kinetic equation. The kinetics and thermodynamic parameters obtained for both the plastics are found very close to each other. So, this study would help design more effective conversion system for the recycling of both the wastes together.

中文翻译：

---

环保替代塑料的热降解：动力学和热力学分析。

这项工作报告了两种不同的环保塑料的热降解性能，动力学和热力学。非织造塑料和基于玉米淀粉的生物可降解塑料，如今通常用作合成塑料的替代品。在这种情况下，在氮气氛中以10、20、40、60、80和100°C / min的宽范围加热速率对塑料废料样品进行了热重分析，活化能由一阶模型确定-根据活化配合物的艾林理论确定热力学参数的拟合方法。从这些塑料的热降解动力学研究获得的回归系数最适合一阶动力学方程。发现两种塑料的动力学和热力学参数非常接近。因此，这项研究将有助于设计出更有效的转化系统，将两种废物一起回收利用。