本文通过对润湿分散剂、增稠剂和防腐剂等助剂的筛选,最终确定了50%噻嗪酮悬浮剂的最佳配方:噻嗪酮原药50%、分散剂SD-06为2.0%、润湿剂SR-08为1.0%、乙二醇4.0%、黄原胶2.0%、硅酸镁铝0.5%、苯甲酸钠0.2%、有机硅消泡剂AFE-31680.2%、去离子水补足.实验结果表明:该配方制备的悬浮剂平均粒径< 4μm,悬浮率95%以上,其它各项指标均达到悬浮剂的要求.
In this paper,buprofezin 50% suspension concentrate was prepared by optimizing the main co-formulants such as wetting-dispersing agents,thickening agents as well as preservatives.The optimum formula was determined as follows:buprofezin 50%,dispersant SD-06 2.0%,wetting agent SR-08 1.0%,ethylene glycol 4.0%,xanthan gum 2.0%,magnesium aluminum silicate 0.5%,sodium benzoate 0.2%,organic silicon defoamer AFE-3168 0.2% and water added to 100%.The experimental results showed that the average particle diameter of the preparation with the above formula was less than 4μm and the suspension rate was over 95%.All the other parameters complied with the requirements for suspension concentrate formulation.