Pyo Su-Min, Kim Young-Min, Jung Jung Sul, Yoo Kyung Seun, Jung Sang-Chul, Kim Sang Chai, Rhee Gwang Hoon, Park Young-Kwon
School of Environmental Engineering, University of Seoul, Seoul 02504, Korea.
Department of Environmental Engineering, Daegu University, Gyeongsan 38453, Korea.
J Nanosci Nanotechnol. 2021 Jul 1;21(7):3872-3876. doi: 10.1166/jnn.2021.19196.
This study examined the catalytic effects of Al-MCM-41 on the pyrolysis of wood plastic composite via the thermogravimetric analysis (TGA) and model-free kinetic analysis. Al-MCM-41 containing nanopores, with a high BET surface area (633 m²/g) and acidity (SiO₂/Al₂O₃:25), reduced the decomposition temperature of wood and plastic mixtures (PE and PP) in a wood-plastic composite. The average activation energy for the catalytic pyrolysis of wood plastic composite, which was calculated via a model-free kinetic analysis method (Ozawa) of TGA, was also lower at all conversions than those of non-catalytic pyrolysis. This suggests that the pores of Al-MCM-41 and its high cracking efficiency allow the effective diffusion of wood plastic composite components.
本研究通过热重分析（TGA）和无模型动力学分析，考察了Al-MCM-41对木塑复合材料热解的催化作用。Al-MCM-41含有纳米孔，具有较高的BET表面积（633 m²/g）和酸度（SiO₂/Al₂O₃:25），降低了木塑复合材料中木材与塑料混合物（PE和PP）的分解温度。通过TGA的无模型动力学分析方法（小泽法）计算得出的木塑复合材料催化热解的平均活化能，在所有转化率下也均低于非催化热解的平均活化能。这表明Al-MCM-41的孔及其高裂解效率使木塑复合材料组分能够有效扩散。
