石油化工高等学校学报

石油化工高等学校学报 ›› 2012, Vol. 25 ›› Issue (1): 32-36.DOI: 10.3969/j.issn.1006-396X.2012.01.007

• 石油化工 • 上一篇    下一篇

双季铵型有机膨润土的微观结构表征

罗忠新,高芒来* ,谷峥,薛广海,胡昭朝   

  1. 中国石油大学(北京)理学院重质油国家重点实验室
  • 收稿日期:2011-12-19 修回日期:1900-01-01 出版日期:2012-02-25 发布日期:2012-02-25
  • 作者简介:罗忠新(1985-),女,湖南新邵县,在读博士

Characterization of The Microstructure of The Organobentonites Prepared by Bis-Quaternary Ammonium Salts

  1. State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum,  Beijing 102249, P. R. China
  • Received:2011-12-19 Revised:1900-01-01 Published:2012-02-25 Online:2012-02-25

摘要:  以六甲基己二铵二甲硫酸盐(HDAS)、六甲基癸二铵二甲硫酸盐(DDAS)、1,6-二溴己二铵盐(HMB)及1,10-二溴癸二铵盐(DMB)为有机改性剂,制备双季铵型有机膨润土。采用氮吸附技术、X-射线衍射(XRD)、红外光谱(IR)及热分析(TG)手段表征有机膨润土的微观结构。结果表明,有机改性后,膨润土BET比表面积增加,孔体积有增有减;各种双季铵型成功进入到膨润土层间,并以单层平卧的方式排列,未改变膨润土层状硅酸盐骨架结构;季铵盐改性剂烷基链链长及配对阴离子对膨润土的微观结构有一定影响。 

关键词: 双季铵盐 , 有机膨润土 , 改性 , 表征

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.

Key words: Bis-quaternary ammonium salts, Organobentonite, Modified, Characterization

引用本文

罗忠新,高芒来,谷峥. 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.

LUO Zhong-xin, GAO Mang-lai,GU Zheng,et al. Characterization of The Microstructure of The Organobentonites Prepared by Bis-Quaternary Ammonium Salts[J]. Journal of Petrochemical Universities, 2012, 25(1): 32-36.

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