The preparation and properties of amino phosphonic chelating fiber

The amino phosphonic fiber was prepared by the amination and phosphorization reaction of the material fibre which was prepared by polypropylene fiber grafted with styrene and then chloromethylated. For the amination reaction, the effect of temperature, reaction time were examined. Orthogonal test was used to look for the best reaction condition. The results indicate that the binding capacities of the fibrous sorbent for Cu (II) was 77.6 mg/g and it could absolutely separate Cu (II) and Ni (II) from hybrid solution with same concentration. Elementary analysis, infrared spectrum, scanning electron microscopy and thermogravimetry were used to investigate the properties of the amino phosphonic fiber.