壳聚糖/凹土复合树脂的制备工艺研究

Study on the Preparation of Attapulgite/Chitosan Composite Resin

以凹凸棒黏土与壳聚糖为原料,以戊二醛为交联剂,通过反相悬浮交联法制备了具有多孔结构的凹凸棒黏土/壳聚糖复合树脂(ACR),扫描电镜(SEM)对其结构进行了表征。复合树脂孔参数测定结果表明,凹土的加入显著改善了树脂的孔度、含水量和溶胀性,降低了树脂的失重率。

A porous attapulgite /chitosan composite resin（ ACR） ,based on the hybridization of chitosan and attapulgite,was prepared by inverse suspension cross-linking technique. The microstructure and morphology of ACR were characterized by scanning electron microscopy （ SEM） techniques. Pore parameters results showed that,compared with chitosan resin,the introduction of attapulgite obviously improved the porosity,water contend and swelling property of the resin,and also decreased the weight loss rate.