25%氟烯线砜·嘧虫胺悬浮剂的配方研究

Preparation of Fluensulfone+Flufenerim 25% SC

通过对不同润湿分散剂、增稠剂、防冻剂的筛选,对25%氟烯线砜·嘧虫胺悬浮剂进行配方筛选,得到最佳配方:氟烯线砜10%、嘧虫胺15%、D800 3%、A755 2%、IP 1%、黄原胶0.2%、硅酸镁铝1.8%、丙二醇4%、消泡剂0.4%,水补足至100%。试验结果表明,该产品悬浮率90%以上,热贮[(54±2)℃]分解率小于5%,产品其他各项指标符合悬浮剂的要求。此制剂主要用于蔬菜、果树根结线虫的防治,防效达到90%以上。

The fluensulfone+flufenerim25%SC was developed by sceening additive agents such as wetting and dispersing agents,thickeners and antifreezers.The optimum formula was as follows:fluensulfone10%,flufenerim15%,D8003%,A7552%,IP1%,xanthatgum0.2%,magmesium ahumirnum silicate1.8%,1,2-propanediol4.0%,organosilicone defoamer0.2%and water making up to100%.The experimnet results showed that the product suspension rate was over90%and the decomposition rate of active ingradient was less than5%at(54±2)℃for14days,and the product met with the requirements of the formulation.The control effect for Meloidogyne on vegetables and fruit trees was more than90%.