RESEARCH ARTICLE


Synthesis and Evaluation of Carboxymethyl Glucoside as Montmorillonite Swelling Inhibitor



Hua-rui Hao1, Cheng-hu Xue1, Gang Chen2, *, Jing-rui Zhao3, Li Hong4
1 School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China;
2 College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an, 710065, China;
3 Shaanxi Yanchang Petroleum Oilfield Chemical Technology Co., LTD, Yan’an Shaanxi 717400, China;
4 Jiangsu Santacc Co., Ltd. Zhengjiang Jiangsu, 212200, China


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© 2015 Chen et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: * Address correspondence to this author at the College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an, 710065, China; Tel/Fax: 086-029-88382693; E-mail: gangchen@xsyu.edu.cn


Abstract

Methylglucoside (MEG) has been used in the water-based mud with fine montmorillonite (MMT) swelling inhibition, but it still has such shortages as large concentration and low thermostability. In this work, carboxymethyl glucoside (CMG) was synthesized with glucose and sodium chloroacetate and used as swelling inhibitor. The inhibition of CMG against clay swelling was investigated by MMT linear expansion test, mud ball immersing test and bentonite inhibition test. The results showed that the CMG has a good inhibition to the hydration swelling and dispersion of MMT. Under lower concentrations, the linear expansion rate of MMT in CMG solution is much lower than that of MEG, and the hydration expansion degree of the mud ball in the CMG solution was significantly inhibited. The characterizations of physicalchemical properties of particle, analysized by thermogravimetric analysis and scanning electron microscopy revealed that CMG plays a great role in preventing water from absorbing and keeps MMT in large particle size.

Keywords: Carboxymethyl glucoside, inhibition, montmorillonite, swelling.