Abstract
A biglucoside (BG) was synthesized with glucose and epichlorohydrin as raw materials. The inhibition of BG against montmorillonite swelling was investigated by various methods including montmorillonite linear expansion test, mud ball immersing test, thermogravimetric analysis, and scanning electron microscopy. The results show that the BG has good inhibition ability to the hydration swelling and dispersion of montmorillonite. Under the same condition, the linear expansion ratio of montmorillonite in BG solution is much lower than that of MEG. The particle distribution measurement, thermogravimetric analysis, FT-IR, and scanning electron microscopy results all prove the efficient inhibition of BG.
Highlights
Montmorillonite is a 2 : 1 montmorillonite, which has two tetrahedral sheets sandwiching a central octahedral sheet
The inhibitive properties were evaluated through linear expansion, mud balls, thermogravimetric analysis, and scanning electron microscopy
Epichlorohydrin is a bifunctional compound with a –Cl group and an epoxide group, which is a highly reactive compound and is a versatile precursor in the synthesis of many organic compounds
Summary
The hydration and expansion will lead the viscosity to increase, which may be a disadvantage for its application [1,2,3]. The hydration and expansion should be controlled in some degree using some human friendly hydration inhibitors. Methylglucoside (MEG) has been used as an environmental friendly montmorillonite hydration inhibitor [4,5,6,7]. The inhibitive ability is relatively weak compared with other inhibitors. The researchers have screened other organic additives with high thermostability and good capacity of swelling inhibition [8,9,10]. A biglucoside (BG) was synthesized with glucose and epichlorohydrin as a new montmorillonite swelling inhibitor. The inhibitive properties were evaluated through linear expansion, mud balls, thermogravimetric analysis, and scanning electron microscopy
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