Nano dry suspending agent containing flumorph and ametoctradin and preparation method thereof

The invention provides a dry suspending agent and a preparation method thereof, and belongs to the field of pesticides. The dry suspending agent is prepared from flumorph, ametoctradin, a dispersing agent, a wetting agent, a pH value regulator, a disintegrating aid, a defoaming agent and filler, the dispersing agent comprises a polycarboxylate dispersing agent and a lignosulfonate dispersing agent. The suspending agent has the advantages of small viscosity, small particle size D98 (less than 1.000 [mu] m) after spray granulation, high suspension rate of flumorph and ametoctradin, high stability of thermal storage particle size, good stability of suspension rate of flumorph and ametoctradin after thermal storage, and good effect. 本发明提供一种干悬浮剂及其制备方法，属于农药领域。所述干悬浮剂包括氟吗啉、唑嘧菌胺、分散剂、润湿剂、pH值调节剂、助崩剂、消泡剂和填料；所述分散剂包括聚羧酸盐类分散剂和木质素磺酸盐类分散剂。所述悬浮剂粘度小，喷雾造粒后粒径D98小(＜1.000μm)，氟吗啉和唑嘧菌胺的悬浮率高，热储粒径稳定性高，氟吗啉和唑嘧菌胺的热储后悬浮率稳定性好，具有良好的优异效果。