新型离子交换纤维制备方法的探讨

Study and Prospects on Preparation of New Ion-Exchange Fibers

综述了离子交换纤维常见的几种制备方法,包括接枝共聚改性法、原始纤维进行化学改性法、聚合物混合成纤法等,并对未来的研究发展方向进行了展望。在我们开展的前期研究中,着眼于利用天然纤维素,如棉花、稻草壳、秸秆等来源广泛且经济廉价的原料,合成新型阴离子交换纤维,可望在废水处理中对砷、氟等阴离子起到高效的交换吸附作用。还对天然棉纤维基离子交换纤维的表面化学进行了研究,以探讨离子交换纤维的表面官能团对吸附交换性能的影响。

Several preparation methods, including grafting polymerization, chemical modification of natural fibers and polymer blending method, are reviewed and the future research and development work on IEFs is also proposed. Fundamental research has been carried out to use natural fibers, such as cotton, rice husk and straw, which are abundantly available and relatively cheap, to synthesize anion- exchange fibers for the removal of arsenic and fluorine from wastewater. The surface chemistry of anion- exchange fiber synthesized from natural cotton was also studied, in order to further understand the effect of surface functional groups of ion-exchange fibers on their adsorptive and exchange properties.