利用咪唑啉两性表面活性剂在水相中剥离类水滑石的研究

doi:10.13218/j.cnki.csdc.2018.08.002

日用化学工业 ›› 2018, Vol. 48 ›› Issue (8): 430-433.doi: 10.13218/j.cnki.csdc.2018.08.002

利用咪唑啉两性表面活性剂在水相中剥离类水滑石的研究

孙慧燕,白雪丽,薛丹丹,黄鑫,张剑,张越

山西大学化学化工学院,山西太原 030006

出版日期:2018-08-22 发布日期:2019-03-22
通讯作者: 张越,副教授,硕士生导师,电话:18636868303,E-mail:zyif0351@163.com。
作者简介:孙慧燕(1990-),女,山西人,硕士研究生,电话:18834199275,E-mail:18834199275@163.com。
基金资助:
太原科技大学博士启动项目(20142042);山西省煤基重点科技攻关项目(MJH2014-12);国家自然科学基金资助项目(21673132)

Study on exfoliation of hydrotalcite-like compounds in aqueous phase with imidazoline amphoteric surfactants

SUN Hui-yan,BAI Xue-li,XUE Dan-dan,HUANG Xin,ZHANG Jian,ZHANG Yue

College of Chemistry and Chemical Engineering,Shanxi University,Taiyuan,Shanxi 030006,China

Online:2018-08-22 Published:2019-03-22

摘要/Abstract

摘要： 采用共沉淀法制备了咪唑啉两性表面活性剂插层的镁铝类水滑石(MgAl-LDHs),再将插层的MgAl-LDHs置于pH=2的水溶液中,使层间呈现阴离子特性的两性表面活性剂转变为阳离子特性,进而通过静电排斥机理,在水相中成功实现MgAl-LDHs层板的剥离。采用X射线衍射、傅里叶变换红外光谱、热重和差示扫描量热分析、透射电子显微镜等技术对样品进行了表征。结果表明,不同分子长度的咪唑啉两性表面活性剂均成功嵌入到MgAl-LDHs层间,且层间距不同。经过插层的MgAl-LDHs能成功剥离,XRD和TEM证实了MgAl-LDHs的分层,同时丁达尔效应证实了胶体的存在。

关键词: 两性表面活性剂, 类水滑石, 剥离

Abstract: Imidazoline amphoteric surfactants intercalated MgAl-hydrotalcite-like compounds (MgAl-LDHs) were prepared by co-precipitation method.After placing the MgAl-LDHs in an aqueous solution with pH=2,the amphoteric ions present in the interlayer were converted to cationic,then the exfoliation of MgAl-LDHs layers was successfully achieved in the aqueous phase by electrostatic repulsion.The samples were characterized by X-ray diffraction,fourier transform infrared spectroscopy,thermogravimetry,differential scanning calorimetry,and transmission electron microscopy.The results show that imidazoline amphoteric surfactants with different molecular lengths are successfully embedded between the MgAl-LDHs layers,and the interlayer spacing is different.The intercalated MgAl-LDHs are successfully exfoliated.The results of XRD and TEM have confirmed the stratification of MgAl-LDHs,while the Tyndall effect has confirmed the presence of colloids.

Key words: amphoteric surfactant, hydrotalcite-like compounds, exfoliation

中图分类号:

TQ423.3

孙慧燕,白雪丽,薛丹丹,黄鑫,张剑,张越. 利用咪唑啉两性表面活性剂在水相中剥离类水滑石的研究[J]. 日用化学工业, 2018, 48(8): 430-433.

SUN Hui-yan,BAI Xue-li,XUE Dan-dan,HUANG Xin,ZHANG Jian,ZHANG Yue. Study on exfoliation of hydrotalcite-like compounds in aqueous phase with imidazoline amphoteric surfactants[J]. China Surfactant Detergent & Cosmetics, 2018, 48(8): 430-433.

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利用咪唑啉两性表面活性剂在水相中剥离类水滑石的研究

Study on exfoliation of hydrotalcite-like compounds in aqueous phase with imidazoline amphoteric surfactants

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