天然高分子改性制备高吸水性树脂研究进展

天然高分子改性制备的高吸水性树脂是近年发展迅速的功能材料,由于其特殊的化学结构,它能吸收自身质量几百倍甚至上千倍的水,对一些盐溶液的吸收倍率也较大;分子结构中引入天然高分子因而降解性能较好,广泛用于农林业生产、城市园林绿化、抗旱保水、防沙治沙,并发挥出了巨大的作用。本文综述了淀粉、纤维素、海藻酸钠、甲壳素/壳聚糖及其它天然高分子改性型高吸水性树脂的特点、在应用中存在的问题及发展前景。

Research progress in super absorbent resin prepared from modification of natural polymers

Super absorbent resin prepared from modification of natural polymers as a kind of functional materials has developed rapidly in recent years.The unique chemical structure makes natural polymers can absorb water hundreds even thousands of times of their own weight.Natural polymers can also absorb some kinds of salt solutions in relatively large amount.The introduction of natural polymer into molecular structure made the obtained materials have good biodegradation ability,these materials can be widely used in agriculture and forestry production,urban gardening,water conservation and the fight to drought and desertification.This paper summarizes the progress of super absorbent resin prepared from modification of natural polymers,existing problems in application are discussed and further development prospects are proposed.