Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)

2004   Vol. 5   No. 12   p.1604-1607

Research on the rheological properties of pesticide suspension concentrate

TAN Cheng-xia^*1,2, SHEN De-long¹, WENG Jian-quan¹, CHEN Qing-wu¹, LIU Hui-jun¹, YUAN Qi-liang¹

(¹College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China)
(²College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China)
^*E-mail: tanchengxia@zjut.edu.cn
Received Oct. 8, 2003; revision accepted Dec. 22, 2003

Abstract: This study reports research on pesticide suspension rheology and a new rheological parameter, the relative value of approach, which has great advantage for judging the physical stability of a pesticide suspension concentrate. Experiments showed that the system can form stable dispersions when the value of the relative value of approach (S_r) is less than 0.1.

Key words: Suspension concentrate, Rheology, Stability, Relative value of approach
doi:10.1631/jzus.2004.1604             CLC number: TQ450.1; O373