高浓度固体农药80%吡蚜酮水分散粒剂的研制

Development of High Concentration Solid Pesticides 80% Pymetrozine WDG

通过对80%高浓度吡蚜酮水分散粒剂的配方研究,并用正交试验方法以润湿性和崩解性2种指标对80%吡蚜酮水分散粒剂的表面活性剂组成及其配比进行了筛选,各组成及其含量为:吡蚜酮原药80%/DIS213 5%、WET-800 3%、葡萄糖2%、硫酸铵6%、玉米淀粉补足100%。结果表明,该制剂配方分散性好,悬浮率为95%,润湿时间20 s,崩解时间60 s,热贮(54±2)℃14 d后合格,各项指标均符合水分散粒剂的质量标准。

The formulation study of the high concentration of 80% Pymetrozine water dispersible granules with orthogonal test method was conducted based on the two indexes of wettability and the disintegration. The composition and content of the formulation was Pymetrozine 80%, DIS213 5%, WET-800 3%, glucose 2%, ammonium sulfate 6%, corn starch the rest. The performance test showed that the formulation had good dispersibility, suspension rate was 95%, the wetting time was 20s, the disintegration time was 60s and it was stable after thermal storage under （ 54＋ 2 ）~C for 14 d qualified. The formulation meet the requirement of the quality standard of water dispersible granule.