20％高效氯氰菊酯水乳剂的研制

目的]研制20％高效氯氰菊酯水乳剂.方法]通过对溶剂、乳化剂、稳定剂、增稠剂等种类的选择和用量进行试验,优化了20％高效氯氰菊酯水乳剂的研制配方.结果]20％高效氯氰菊酯水乳剂配方：高效氯氰菊酯原药20.0％,200#溶剂油20.0％,复配乳化剂8.0％,稳定剂TBHQ溶液8.0％,增稠剂黄原胶溶液0.1％,抗冻剂乙二醇2.0％,自来水补足100％.该水乳剂外观为乳白色、均一稳定、流动性较强的液体,滴入水中能迅速呈雾状分散;经各指标性能测试,该配方乳液稳定性达到合格标准.结论]该配方经过外观、分散性及各种稳定性能的检测,综合评价合格.

Research on the Preparation of 20% Cypermethrin Emulsion in Water

Objective ] The aim was to prepare 20% Cypermethrin emulsion in water. Method] After selection and amount tests of solvents,e- mulsifiers, stabilizing agents and thickening agents,the formula of 20% Cypermethrin emulsion in water （EW） was optimized. Result] The for- mula of 20% Cypermethrin EW was as followed ：the original carboplatin of Cypermethrin 20.0% ,200# regent oil 20.0%, compound emulsifier 8.0% ,TBHQ solution 8.0% ,xanthan gum solution 0.1% ,ethylene glycol 2.0% ,and tap water up to 100%. The 20% Cypermethrin EW was de- scribed as ivory white, stable and uniform,had strong fluidity, and could fast disperse in water as fog. The emulsion stability of the formula reached qualified standard after various performance tests. Conclusion ] The product is detected from the appearance, various dispersion property and sta- bility performance, all of which have reached the national standard.