基于黄原胶-蒙脱土新型复合材料的保水性能研究  

Study on Water Retention Properties of Novel Composite Material Based on Xanthan Gum and Montmorillonite

作　　者：苗宗成[1] 王蕾[2] 王登武[1] 霍小平[1] 张永明[1] 李仲谨[1,2] 

机构地区：[1]西京学院,陕西西安710123 [2]陕西科技大学教育部轻化工助剂重点实验室,陕西西安710021

出　　处：《安徽农业科学》2012年第8期4807-4808,共2页Journal of Anhui Agricultural Sciences

基　　金："十一五"国家科学技术支撑计划项目(2006BAD09B04);陕西省科技计划项目(2008K06-15)

摘　　要：[目的]获得一种基于黄原胶-蒙脱土的新型复合保水剂材料。[方法]以N,N'-亚甲基双丙烯酰胺为交联剂,采用溶液聚合法使黄原胶与丙烯酸发生接枝共聚反应,将所得聚合物进一步与蒙脱土复合制备出目标材料,采用傅立叶变换红外光谱对其特征基团进行表征,并使用扫描电镜观察材料表面微观结构。[结果]在50℃条件下,单独使用该复合材料8 h后保水率为53.7%,而与沙土混合后的保水率为65.2%。[结论]该保水剂具有显著抑制水分挥发的能力,且在沙土中恒温条件下的保水能力进一步增强。[ Objective ] The aim was to obtain a novel water retention agent based on xanthan gum and montmorillonite. [ Method ] Xanthan gum was grafted copolymerization with acrylic acid using solution polymerization and N, N＇-methylenebisacrylamide as crosslinker, and then mixed with montmorillonite to meet the target composite materiak And FT-IR was used to characterize the groups in the material and the morphology was de- terrnined using SEM. [ Result] The water retaining rate was 53.7% solely and 65.2% mixed with sand after 8 h in conditions of constant temper- ature of 50℃. [ Conclusion ] The water-retaining agent has remarkable inhibition ability on water loss, and water retention properties in sandy soil are enhanced under constant temperature.

关 键 词：黄原胶 蒙脱土 复合材料 保水性能 

分 类 号：S210.3[农业科学—农业机械化工程] TQ314.1[农业科学—农业工程]