石油化工高等学校学报2012，Vol.25Issue(1)：32-36,5.DOI:10.3969/j.issn.1006-396X.2012.01.007
双季铵型有机膨润土的微观结构表征
Characterization of The Microstructure of The Organobentonites Prepared by Bis-Quaternary Ammonium Salts
罗忠新 1高芒来 1谷峥 1薛广海 1胡昭朝1
作者信息
- 1. 中国石油大学(北京)理学院重质油国家重点实验室,北京102249
- 折叠
摘要
Abstract
Bentonite was modified by hexamethyl hexyl diammonium methylsulfate (HDAS) , hexamethyl decyl diammonium methylsulfate (DDAS), hexamethonium bromide (HMB) and decamethonium bromide (DMB), respectively. The microstructures of the organobentonites were characterized using N2 adsorption technique, infrared spectral (IR), X-ray diffraction (XRD) and thermogravimetric analysis (TG). The results show that the specific surface area of the organobentonites is increased, while the pore volumes of two organobentonites are increase and other two are decrease. The bis - quaternary ammonium salts are intercalated into bentonite interlayer and arranged in monolayer, without changing the layer skeleton structure of silicate. The alkyl chain length and the matching anion of the quaternary ammonium salts have some impact on the microstructure of organobentonite.关键词
双季铵盐/有机膨润土/改性/表征Key words
Bis-quaternary ammonium salts/ Organobentonite/ Modified/ Characterization分类
能源科技引用本文复制引用
罗忠新,高芒来,谷峥,薛广海,胡昭朝..双季铵型有机膨润土的微观结构表征[J].石油化工高等学校学报,2012,25(1):32-36,5.
