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Citation: ZHAI Lili, LU Fusui, XIA Hui, LIAO Kechao. Preparation of Dodecyl Sulfonate-Layered Double Hydroxides and Influence on Nicosulfuron Oil Flowable Concentrate Rheological Property[J]. Chinese Journal of Applied Chemistry, ;2013, 30(10): 1202-1207. doi: 10.3724/SP.J.1095.2013.20560 shu

Preparation of Dodecyl Sulfonate-Layered Double Hydroxides and Influence on Nicosulfuron Oil Flowable Concentrate Rheological Property

ZHAI Lili ^a, ,
LU Fusui ^b ,
XIA Hui ^a ,
LIAO Kechao ^a

a. College of Plant Protection, Shandong Agricultural University, Shandong Agricultural University, Tai'an 271018, China;
b. College of Chemistry and Materials Science, Shandong Agricultural University, Shandong Agricultural University, Tai'an 271018, China

Received Date: 3 December 2012
Revised Date: 21 January 2013

Hydrophobic dodecyl sulfonate-layered double hydroxides (DSO-LDHs) were prepared with Mg-AlLDHs as the precursors,and its structure was characterized by XRD,optical microscope and FTIR. The results indicate that DSO anions are intercalated into LDHs interlayer successfully. In this paper,DSO-LDHs were applied as thixotropic materials in 4% nicosulfuron oil flowable suspension.The rheological results indicate that pesticide particles are attached to DSO-LDHs through electrostatic interaction since DSO-LDHs has a special structure of hydrotalcite laminated layers.As the concentration of DSO-LDHs increases,the oil suspension shows a positive thixotropy,and the yield value is also increased,whereas the oil separation ratio is decreased.
- dodecyl sulfonate-layered double hydroxides,
- oil flowable concentrate,
- nicosulfuron,
- positive thixotropy
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