ATRP改性水刺黏胶纤维的制备及其Fe^3+离子吸附性能

Preparation of Spunlace Viscose Fibers via ATRP Method and Its Adsorption Property of Fe^3+

采用原子转移自由基聚合技术,以甲基丙烯酸羟乙酯为接枝单体对水刺黏胶纤维进行接枝改性。利用扫描电子显微镜和傅里叶变换红外光谱仪测试并分析改性前后水刺黏胶纤维表面形态及化学结构变化,采用电感耦合等离子体发射光谱仪测定溶液中Fe^3+离子浓度,以探究改性水刺黏胶纤维对Fe^3+离子的吸附性能。研究结果表明,改性水刺黏胶纤维对Fe^3+离子饱和吸附量达到271.3mg/g,同时其吸附过程符合Langmuir等温吸附模型,属于单分子层吸附。

The graft modification of spunlace viscose fibers were carried out by atom transfer radical polymerization with hydroxyethyl methacrylate as graft monomer.The surface morphology and chemical structure of the spunlace viscose fibers before and after modification were analyzed by scanning electron microscope and Fourier transform infrared spectroscopy.And the inductive coupling plasma emission spectroscopy was used to determine the Fe^3+ion concentration to investigate the adsorption properties of modified spunlace viscose fibers to Fe^3+ions.The results show that the saturated adsorption capacity of modified spunlace viscose fibers to Fe^3+ions reaches 271.3 mg/g,and the adsorption process accords with the Langmuir isothermal adsorption model,which belongs to monolayer adsorption.