高岭土插层与剥离影响因素的研究  

Study on influencing factors of kaolinite intercalation and exfoliation

作　　者：李晓旭[1] 张勇光[1] 詹予忠[1] 陈宜俍[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《应用化工》2012年第12期2103-2105,2108,共4页Applied Chemical Industry

基　　金：中国石油天然气总公司合作资助项目(09-YK-05-36);郑州大学研究生科学研究基金项目(11L01104)

摘　　要：采用混合-静置法制备了高岭土/乙酸钾插层复合物,考察了含水量和温度对插层反应的影响,同时研究了不同剥离方式和插层率对插层复合物剥离效果的影响。结果表明,插层反应体系中少量的水有利于插层反应的进行,在20℃下反应24 h即可达到91%以上的插层率,无需搅拌和高温等其他能耗。高温水洗法和超声水洗法剥离效果较好,插层率越高的复合物剥离后晶粒厚度越小。The kaolinite/potassium acetate composite was prepared by using mixing-aging method. The moisture content and temperature on the influence of intercalated reaction was investigated. The effects of different strippingways and intercalation rates on stripping results of the intercalation composites was also studied. The results showed that a small quantity of water in the reaction system could be conducive to the progress of stripping reaction. When the action was taken at 20 ℃ for 24 h without stirring, the intercala- tion rate could be as high as 91%. It had good stripping effects to use the methods of high tenipe^ature water scrubbing and ultrasound water scrubbing. After stripping the composite with a higher intercalatiotl rate would has smaller thickness of crystalline particles.

关 键 词：高岭土 插层 乙酸钾 剥离 

分 类 号：TQ174.41[化学工程—陶瓷工业]