粘土-有机树脂超吸水复合材料的制备及性能研究

超吸水材料是一种吸水能力特别强的物质，能够吸收自身重量的几十倍甚至几千倍的水；吸水后，在加压的情况下也不脱水或脱水很少。因此，又称它为高保水材料。由于它既具有独特的吸水和保水性能，又具备高分子材料的优点，从而在国民经济众多领域中获得了广泛的应用［１～３］，从１９６１年美国将其开发应用［３］至今，一直保持着良好的发展势头。本文制备了粘土淀粉接枝丙烯酰胺超吸水复合材料。通过Ｃｅ４＋引发，使淀粉、粘土接枝丙烯酰胺；以Ｎ，Ｎ’亚甲基双丙烯酰胺作为交联剂使接枝物适度交联；交联产物经水解、洗涤、脱水、干…

Synthesis and Property of Clay organic ResinSupper Absorbent Composite

Using ammonium ceric nitrate and N,N' methylene bis acrylamide as an initiator and cross linkage agent respectively, a super absorbent was prepared by graft polymerization of acrylamide on starch at the presence of clay suspension, followed by hydrolyzing. The water absorbency of the sample is 4 000(g H 2O/g dry sample). The influences of the kind of clay, content of clay, cross linkage agent on absorbent properties are discussed in this paper. The results show that clay powder, as a kind of functional filler, enhances comprehensive absorbent property of the composites.