有机蒙脱土的制备及应用研究  

Study on Preparation and Application of Organo-Montmorillonite

作　　者：马银陈[1] 周宁琳[1] 方苏[1] 高孝俊[1] 章峻[1] 李利[1] 沈健[1] 

机构地区：[1]南京师范大学江苏省生物医药功能材料工程研究中心,江苏南京210097

出　　处：《南京师大学报（自然科学版）》2008年第1期67-70,共4页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)专项资助项目(2006AAO32Z445);江苏省教育厅高新技术产业发展项目(JHB05-21);科技部重大基础研究前期研究专项(2005CCA00400);江苏省教育厅基金(JH03-013,JHjd03-008,JHB05-21);江苏省发改委(苏发改高技发2004419号)资助项目

摘　　要：以蒙脱土(MMT)为原料,用两种不同类型的有机插层剂与蒙脱土层间的离子进行交换,制备了两种有机蒙脱土.FTIR、XRD结果表明插层剂进入蒙脱土的纳米层间且层间距均可达到4nm以上,其中与蒙脱土有化学作用的有机硅插层剂插层效果更好;TGA分析表明两种有机蒙脱土都具有很好的热稳定性,分解温度达到200℃以上,分解温度的高低与插层剂的结构以及所处的介质环境有关.初步研究了有机蒙脱土在有机硅乳液中的应用.Two kinds of organo-montmorillonite （OMMT） were prepared from MMT by ion exchange with two different organic intercalation. The OMMT was characterized by FTIR,XRD and TGA. The results showed that two organic intercalation had intercalated into the layers of MMT and the spacing of layers of MMT had increased by more than 4nm. The OMMT modified with organic silicon intercalation had larger spacing of layers. The TGA analysis indicated that two kinds of OMMT had excellent property of thermal stability. The onset thermal decomposition temperature was above 200℃, which was related to the structure of intercalation and the environment. We had a preliminary study on the application of the OMMT in the silicone emulsion.

关 键 词：蒙脱土 有机改性 插层剂 应用 

分 类 号：O613.72[理学—无机化学]