25%呋虫胺·唑虫酰胺悬浮剂的配方研制

Formulation development of dinotefuran·tolfenpyrad 25%SC

采用湿法砂磨工艺制备25%呋虫胺·唑虫酰胺悬浮剂(SC),对其配方中的润湿分散剂、防冻剂和增稠剂进行了筛选,确定优选配方为10%呋虫胺、15%唑虫酰胺、2%SP-SC29、2%SP-27001、2%润湿分散剂A、2%润湿分散剂B、0.5%润湿分散剂C、5%丙三醇、1%硅酸镁铝、0.18%黄原胶、0.36%苯甲酸钠、0.4%SAG1522,去离子水补至100%。该产品流动性好、悬浮率高、稳定性好,各项技术指标符合SC的质量标准,用于防治茶小绿叶蝉效果良好。

The dinotefuran·tolfenpyrad 25%SC was prepared by wet sand grinding process,and the wetting dispersants,antifreeze agents and thickeners in its formula were screened.The optimized formula was determined to be 10%dinotefuran,15%tolfenpyrad,2%SP-SC29,2%SP-27001,2%wetting dispersant A,2%wetting dispersant B,0.5%wetting dispersant C,5%glycerol,1%magnesium aluminum silicate,0.18%xanthan gum,0.36%sodium benzoate,0.4%SAG1522,and deionized water was added up to 100%.The test results showed that the product had good fluidity,high suspension rate and good stability.All technical indicators met the quality standards of the suspension,and it was effective in controlling empoasca flavescens.