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Thixotropic and Viscoelastic Properties of Hydrotalcite Like Compound‐Montmorillonite Suspensions
Author(s) -
LI Shuping,
LI Xiaodong,
ZHU Yinyan
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990105
Subject(s) - thixotropy , chemistry , hydrotalcite , rheology , viscoelasticity , suspension (topology) , montmorillonite , creep , chemical engineering , carbonation , chromatography , composite material , organic chemistry , materials science , catalysis , mathematics , homotopy , pure mathematics , engineering
The thixotropic and viscoelastic properties of the complex suspension made up of hydrotalcite‐like compound (HTlc)‐sodium montmorillonite (MT) suspensions have been studied carefully. Two kinds of Fe‐Mg‐Al‐HTlc systems have been examined, and from sample 1 to sample 2, the content of Mg 2+ enhances gradually while the molar ratio of Al to Fe remains constant. With increasing the content of Mg 2+ in the HTlc samples, the results of the creep tests and the stress sweep experiments all indicate that the structure strength of the HTlc/MT suspension increases. Moreover, the hysterisis loops have been detected carefully, showing that the thixotropic degree increases with increasing the Mg 2+ content. It was concluded that the rheological properties could be adjusted by the change of the metal content.