The Preparation of Nanosized Polyethylene Particles via Carbon Sphere Nanotemplates
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- 作者：Jing Wang ; Mengshan Yu ; Wanhe Jiang ; Yang Zhou ; Fengjiao Li ; Lu Cheng ; Jianjun Yi ; Qigu Huang ; Yunfang Liu ; Wantai Yang
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2013
- 出版时间：December 11, 2013
- 年：2013
- 卷：52
- 期：49
- 页码：17691-17694
- 全文大小：261K
- 年卷期：v.52,no.49(December 11, 2013)
- ISSN：1520-5045
文摘
A novel type of nano template was prepared by loading a Ziegler鈥揘atta catalyst on nanosized carbon spheres for ethylene polymerization to form nanosized polyethylene (PE) particles; triethylaluminum (AlEt3) was used as a co-catalyst. The results revealed that the nano templates were spherical and their average diameter was 180 nm. The nano template had a high titanium content of 4.5 wt鈥?, determined by inductively coupled plasma (ICP) emission spectroscopy and high catalytic activity (up to 7.68 脳 105 gPE/((mol Ti) h) for ethylene polymerization. Polyethylene particles 310 nm in diameter were obtained. The morphology of the polymer particles was spherical and the size distribution is uniform, as confirmed by scanning electron microscopy (SEM).