PAMPS高吸水性树脂吸附性能

Adsorption Behavior of PAMPS Superabsorbent

用溶液聚合法合成了聚(2-丙烯酰胺-2-甲基丙磺酸)高吸水性树脂(PAMPS树脂),研究了树脂在Pb(NO3)2、Cu(NO3)2、Zn(NO3)2溶液中的吸附性能,结果表明,在单一金属离子溶液中,实验范围内PAMPS树脂吸附量随溶液浓度增加而增大,对Pb2+的吸附量还随交联剂浓度和单体中和度增加而增大;在二元和三元混合金属离子溶液中,PAMPS树脂对Pb2+有很好的选择吸附性。

Some superabsorbents Poly（2-aerylamido-2-methylpropanesulfonicacid）（PAMPS） were prepared by means of water solution polymerization. And the adsorption behavior and desorption percent was discussed for PAMPS in the single, binary and ternary solutions of Pb（NO3）2, Cu（NO3）2and Zn（NO3）2. The results have shown that the amount of adsorption for Pb^2＋ , Cu^2＋ and Zn^2＋ increases with increasing metal ion concentrations and Pb^2＋ 〉 〉 Cu^2＋ 〉 Zn^2＋ , and that the higher selectivity for the Pb^2 ＋ adsorption was obtained.