从高吸水性树脂的结构和吸水机理出发,结合Flory公式,探讨了影响高吸水树脂吸水性能的各种因素,尤其是外部盐溶液的影响,对改进高吸水树脂耐盐性的几种方法:如亲水基团多样化、引入长链疏水单体、选择合适的交联剂、制备互穿网络高吸水树脂、与其他成分复合等进行了重点阐述。
The factors influencing water absorption capacity of super absorbent polymers ( SAP), especially the aqueous salt solution, are discussed by Flory formula in terms of the structure and absorbent mechanism of SAP. Several methods for improving salt tolerance of SAP are summarized, including diversification of hydrophilic groups, incorporation with hydrophobic monomers with long-chaln, choice for proper cross-llnklng agents, interpenetrating polymerization, and combination with other materials.