期刊
MACROMOLECULAR REACTION ENGINEERING
卷 8, 期 3, 页码 194-200出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mren.201300153
关键词
microreactor; microscope; polyethylene (PE); single particle; Ziegler-Natta (ZN)
资金
- Kompetenzzentrum Holz GmbH
- Borealis Group
The concept of using a micro-reactor tool for studying single particle polymerization is demonstrated in the present study. The micro-reactor is equipped with a video microscope for capturing the growth of polyethylene-particles during polymerization. The gas-phase polymerizations are done in conditions very close to industrial set points. As catalyst a standard 4(th) generation Ziegler-Natta system has been used. From the obtained particle growth curves the rate of polymerization is calculated and related with SEM pictures to allow better understanding of the gas-phase polymerization of ethylene. Different Al/Ti ratios and reaction temperatures are examined and explain the behavior of growing polyethylene-particles in a satisfying way.
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