高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (7): 1154.

• 论文 • 上一篇    下一篇

Ti-Mg系载体催化剂乙烯加氢预聚合对乙烯气相聚合的影响

李悦1, 林尚安2   

  1. 1. 东莞理工学院应用化学系, 东莞 511700;
    2. 中山大学高分子研究所
  • 收稿日期:1995-07-17 出版日期:1996-07-24 发布日期:1996-07-24
  • 通讯作者: 李悦,男,27岁,博士,讲师.
  • 作者简介:李悦,男,27岁,博士,讲师.
  • 基金资助:

    国家自然科学基金

Effect of Ethylene Prepolymerization in C2H4/H2 Atmosphere with Ti-Mg Catalyst on Gas-phase Ethylene Polymerization

LI Yue1, LIN Shang-An2   

  1. 1. Department of Applied Chemistry, Dongguan Institute of Technology, Dongguan 511700;
    2. Institute of Polymer Science, Zhongshan University
  • Received:1995-07-17 Online:1996-07-24 Published:1996-07-24

关键词: Ziegler-Natta催化剂, 预聚合催化剂, 乙烯气相聚合

Abstract: Ti-Mg catalyst treated by novel prepolymerization in C2H4/H2 atmosphere shows a high activity and non-decaying kinetic profiles in gas-phase ethylene polymerization.The prepolymerization drastically reduces the initial polymerization rate and increases the bulk density (BD) of the resulting polymer product, exhibiting a similarity to the prepolymerization in C2H4/N2 atmosphere, Characterization of the resulting polymer particle by SEMdemonstrates bound agglomerates of fine secondary polymer globules for the polymer surface,which could be effective for increasing BDof the product.

Key words: Ziegler-Natta catalyst, Prepolymerized catalyst, Gas phase ethylene polymerization

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