Preparation of Polypropylene Fabric Adsorbent Containing Phosphoric Acid by Radiation-Induced Graft Copolymerization, and Adsorption of $Cu^{2+}$, $Pb^{2+}$ and $Co^{2+}$

방사선 그라프트 공중합에 의한 인산기를 갖은 폴리프로필렌 부직포 흡착제의 제조 및 구리, 납, 및 코발트 이온의 흡착

  • Received : 1998.08.31
  • Published : 1999.02.25

Abstract

The cation-exchange adsorbent (CEA) was prepared by radiation-induced grafting of glycidyl methacrylate (GMA) onto polypropylene (PP) fabric and its subsequently phosphonation. The adsorption characteristics of $Pb^{2+}$, $Cu^{2+}$ and $Co^{2+}$ for the CEA were discussed. In the grafting of GMA onto PP fabric, the degree of grafting (%) increased with increasing reaction time, reaction temperature, and pre-irradiation dose. The maximum grafting yield was observed around 60% GMA concentration. The content of phosphoric acid ranges from 2.5 to 3.5 mmol/g with the 85% phosphoric acid. The adsorption of $Pb^{2+}$, $Cu^{2+}$ and $Co^{2+}$ by the CEA was enhanced with increasing phosphoric acid content. The order of adsorption capacity of CEA was $Pb^{2+}$>$Co^{2+}$>$Cu^{2+}$.

Keywords

graft copolymerization;radiation/induce

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