Study on identification method of imported metallocene catalyzed polyethylene

Chuan Luo; ShuJun Dai; FengPing Ni; Chen Ruan; HaiSong Ying; LiFeng Yuan

doi:10.1117/12.2673018

25 April 2023 Study on identification method of imported metallocene catalyzed polyethylene

Chuan Luo, ShuJun Dai, FengPing Ni, Chen Ruan, HaiSong Ying, LiFeng Yuan

Proceedings Volume 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022); 125980D (2023) https://doi.org/10.1117/12.2673018
Event: Eighth International Conference on Energy Materials and Electrical Engineering (ICMEE 2022), 2022, Guangzhou, China

Abstract

The imported polyethylene was analyzed by high temperature gel permeation chromatography, viscosity method, differential scanning calorimetry and inductively coupled plasma mass spectrometry. The molecular weight and its distribution, shear viscosity, thermodynamic properties, catalyst residues of several Ziegler-Natta catalyzed and metallocene catalyzed polyethylene were analyzed. The results show that most non-metallocene catalyzed polyethylene can be distinguished by high temperature gel permeation chromatography. Differential scanning calorimetry combined with capillary viscometry can effectively identify whether the sample belongs to single-site catalytic metallocene-catalyzed polyethylene or multi-site catalytic metallocene-catalyzed polyethylene. Finally, the ratio of Ti/Zr in the catalyst residue can be used to determine whether the sample belongs to metallocene-catalyzed polyethylene.

Citation Download Citation

Chuan Luo, ShuJun Dai, FengPing Ni, Chen Ruan, HaiSong Ying, and LiFeng Yuan "Study on identification method of imported metallocene catalyzed polyethylene", Proc. SPIE 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022), 125980D (25 April 2023); https://doi.org/10.1117/12.2673018

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