煤系高岭土/二甲基亚砜插层复合材料研究  

Investigation on kaolin/DMSO intercalation complex

作　　者：许红亮[1] 王萌[1] 刘钦甫[2] 王海龙[1] 张锐[1] 杨凯军[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001 [2]中国矿业大学地球科学与测绘工程学院,北京100083

出　　处：《功能材料》2010年第4期620-622,共3页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA06Z109);国家自然科学基金资助项目(40872102)

摘　　要：以煤系高岭土为主要原料、二甲基亚砜(DMSO)为插层剂,制备出煤系高岭土/DMSO插层复合材料。利用X射线衍射、红外光谱和差示扫描量热-热重分析对插层复合物进行了研究。结果表明,DM-SO分子成功地插入了高岭石层间,与高岭石的内表面羟基形成新的氢键,并使高岭石的层间距从0.714nm增大至1.121nm,脱羟基温度由541℃左右降低至523℃。煤系高岭土/DMSO插层复合体于197℃左右发生DMSO的脱嵌作用。Kaolin/dimethylsulphoxide intercalation complex were successfully prepared by using kaolin from coal measures as the main raw material and dimethylsulphoxide （DMSO） as the intercalation agent.XRD,FT-IR and DSC-TG were used to investigate the intercalation complex.It is revealed that DMSO molecule intercalated successfully into the interlayer of kaolinite,and formed new hydrogen bonds with the inner surface hydroxyls of kaolinite.Thus led to the basal spacing of kaolinite increased from 0.714 to 1.121nm,and the dehydroxylation temperature of kaolinite decreased from 541 to 523℃.The deintercalation of DMSO molecule from the kaolin/DMSO intercalation complex occurred at 197℃.

关 键 词：煤系高岭土 二甲基亚砜 插层复合体 

分 类 号：TB332[一般工业技术—材料科学与工程] TD985[矿业工程—选矿]