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Chengbei, China

Li Y.,Changzhi College | Bi H.-Y.,Changzhi Medical College | Shen S.-L.,Changzhi College | Mao X.-M.,Changzhi College | And 2 more authors.
Journal of Dispersion Science and Technology | Year: 2011

The thixotropic behavior of Mg-Al hydrotalcite-like compound (HTlc)/cationic starch (CS) suspensions was investigated as a function of the mass ratio (>0.08) of HTlc to CS, the electrolyte and the temperature, respectively. The thixotropy was studied by monitoring viscosity (g) change during the recovery process as a function of time (t) after the cessation of intensive shear. The results showed that the strength of negative thixotropy of the CS solution decreased with the increasing of electrolyte (NaCl, CaCl2, or AlCl3) concentration and the temperature. The thixotropic type of the HTlc/CS suspensions could transform from negative to complex, positive, complex, and then to negative thixotropy with the increasing of HTlc content if CS was the main component of the suspensions. In addition, the thixotropic type of the HTlc/CS suspensions transformed from original type to positive thixotropy with the increasing of electrolyte concentration and the temperature. © Taylor & Francis Group, LLC. Source

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