高吸水性树脂的应用及其改性

本文简单叙述了国内外高吸水性树脂的生产状况，以及高吸水性树脂吸水的机理，以研究较多的聚丙烯酸钠高吸水性树脂为例，从提高高吸水性树脂的凝胶强度以及耐盐性和稳定性，控制吸水速度等方面，对聚丙烯酸钠高吸水性树脂的改性方法进行了综述，提出改性工艺研究和改性原理研究，为高吸水性树脂的改性的研究提供了重要的方向。

This article introduced the production situation of SAP at home and abroad and the water-absorbing mechanism of SAP. Taking sodium polyacrylate as an example, this article overviews the modification of sodium polyacrylate and offers the research on modification technology and modification principle from the increase of gel strength, salt tolerance and stability, and the control of water-absorbing speed of SAP, thus provides important direction for the research on modification of SAP.