期刊
POLYMERS
卷 12, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/polym12030705
关键词
poly (ethylene terephthalate) (PET); pyrolysis; zeolite; NiCl2; Fourier transform infrared spectroscopy (FT-IR); C-13 nuclear magnetic resonance (NMR); pyrolysis mechanism
资金
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX18_0023]
- National Science Foundation of China [51706044]
- Natural Science Foundation of the Jiangsu of China [BK20170666]
- Recruitment Program for Young Professionals in China
- Southeast University
The pyrolysis of poly (ethylene terephthalate) (PET) in the presence of ZSM-5 zeolite and NiCl2 as a catalyst was studied at different temperatures under N-2 atmosphere. Quantitative C-13 nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy (FT-IR) were applied to characterize the waxy and solid residue. The carboxyl and aliphatic hydroxyl groups in the waxy residue have been greatly depleted after the use of zeolite during pyrolysis on the basis of the results of C-13 NMR and FT-IR analysis. The proportion of aromatic hydroxyl groups increased by 21.82% when the mass ratio of zeolite to PET was set to 2.0/1.0. The results indicate that ZSM-5 is able to facilitate the decomposition of carboxyl, aliphatic groups, and ether bonds in the primary products produced from the pyrolysis of PET. In addition, the deoxygenation effects on the waxy products have been significantly enhanced with the addition of zeolite based on the results of NMR.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据