Abstract:

【Objective】The objective of this study is to build a rapid screening recipe of hexaconazole suspension concentrate. 【Method】The suspension system was divided into wetting dispersants and antisettling agents by using the method, and then used, respectively, to the triangle-coordinate figure. In order to shorten the screening period, the method replaced grinding with shearing to obtain samples, and the important and quality performance indices such as viscosity, water separation ratio, suspensibility and dispersion were selected. The optimum recipe was obtained by further screening, based on determining a better region in the triangle rectangular coordinate.【Result】The optimum formulation of 5% hexaconazole SC was determined: 5% hexaconazole, 0.5% NP-10, 1% 1602，3.5% VSI-B88, 0.025% XG, 2% magnesium aluminum silicatenf, 2.5% Na-Ben, 3% ethylene glycol and fill water to 100%. Throughout the selection process, 1 040 g sample and 13 hours were consumed, which was more efficient than the conventional method. That replaced grinding with shearing could save time 3/4 and save 1/2 or more raw materials.【Conclusion】The technological assay established in this study is a rapid, high efficient and simple tool for screening the formulation of SC.