微波在制备高岭石-不同插层剂插层复合物中的应用(英文)  

The Application of Microwave in Preparation of Intercalated Kaolinite with Different Intercalation Reagents

作　　者：李志杰[1,2] 郭方方[1] 林枞[1] 徐政[1] 彭虎 

机构地区：[1]同济大学材料学与工程学院 [2]长沙隆泰微波热工有限公司,长沙410013

出　　处：《材料导报》2007年第S2期37-40,共4页Materials Reports

基　　金：National Natural Science Foundation of China(No.50372045)

摘　　要：应用一种新方法——微波协同作用快速制备了高岭石插层复合物,研究了不同插层剂对插层效果的影响。结果表明,在微波条件下,对于偶极距较大并且分子尺寸更小的插层剂DMSO具有显著的插层效果。相比传统方法,该法能更为快速地制备了插层率为82.2%的高岭石插层复合物(时间仅为1h,而传统方法要数天时间)。而且,在用KAC、Urea作为插层剂时,微波显示出不同的影响。这种微波对制备高岭石插层复合物的良好效果为高岭石插层复合物及其应用开辟了一条新的途径。Therein we report a novel route to develop intercalated kaolinite composites by using a microwave method, and the effects that different reagents have on the intercalation process. The result shows that the efficient intercalation is promoted with larger dipole-to-dipole distance and smaller sized molecule dimethylsulphoxide (DMSO) during microwave exposure. In the literature, we find that the time need to obtain 82.2% intercalated samples by microwave heating is far less (1 hour compared to several days) than using conventional methods. Also, microwaves seem to have no deleterious effects on the intercalation process, when using Potassium acetate (KAc) and urea as reagents. That microwaves preferentially heat different reagents, in this case water not kaolinite, at different temperatures is beneficial to the development of a novel route to intercalated Kaolinite.

关 键 词：微波 高岭石 KAC UREA DMSO 插层 热效应 

分 类 号：TB33[一般工业技术—材料科学与工程]