Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Research on Preparation of Sheath-Core Bicomponent Composite Ion Exchange Fibers and Absorption Properties to Metal Ion

  • Ding, Zhi-Jia (Research Institute of Biologic and Spinning Materials of Tianjin Polytechnic University, The Key Lab of Functional and Modified Fiber of Tianjin, Tianjin Polytechnic University) ;
  • Qi, Lu (Research Institute of Biologic and Spinning Materials of Tianjin Polytechnic University, The Key Lab of Functional and Modified Fiber of Tianjin, Tianjin Polytechnic University) ;
  • Ye, Jian-Zhong (Research Institute of Biologic and Spinning Materials of Tianjin Polytechnic University, The Key Lab of Functional and Modified Fiber of Tianjin, Tianjin Polytechnic University)
  • Published : 2008.01.31
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Abstract

Based on the sheath-core bicomponent composite fibers with modified polystyrene (PS) and the modified polypropylene (PP), composite fibers obtained were further cross-linked and sulphonated with chlorosulphonic acid to produce strong acidic cation ion exchange fibers. The structures of the fibers obtained were characterized using Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC) etc. The optimal technology of the fibers obtained is discussed. The static absorption capacity of the sheath-core bicomponent composite cation exchange fibers for $Zn^{2+}$, $Cu^{2+}$ was determined. The absorption kinetics and major factors affecting the absorption capacities of $Zn^{2+}$, $Cu^{2+}$ were studied, and its chemical stability and regenerating properties were probed. The results suggest that cation exchange fibers with better mechanical properties and higher exchange capability were obtained. Moreover, this type of ion exchange fiber has good absorption properties and working stability to various metal ions. Hence, they have higher practicability.

Keywords

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