Thiacloprid-containing nano suspending agent and preparation method thereof

The invention provides a suspending agent and a preparation method thereof, and belongs to the field of pesticides. The suspending agent comprises thiacloprid, a wetting agent, a dispersing agent, a thickening agent, an anti-freezing agent and water, the wetting agent is selected from one, two or three of isopropyl naphthalene sulfonate 4075, block polyether HDB-500 and sulfosuccinate SP-4099, and the dispersing agent is selected from at least two of a carboxylate dispersing agent RD-95, a phosphate dispersing agent 3016, a phosphate dispersing agent EMULSON AG TRST and a polycarboxylate dispersing agent SP-2728. The suspending agent is small in particle size, small in viscosity and good in particle size stability, and has a good application prospect. 本发明提供一种悬浮剂及其制备方法，属于农药领域。所述悬浮剂包括噻虫啉、润湿剂、分散剂、增稠剂、防冻剂和水；所述润湿剂选自异丙基萘磺酸盐4075、嵌段聚醚HDB-500、琥珀磺酸盐SP-4099中的一种、两种或三种，所述分散剂选自羧酸盐类分散剂RD-95、磷酸酯类分散剂3016、磷酸酯类分散剂EMULSON AG TRST、聚羧酸盐类分散剂SP-2728中的至少两种。所述悬浮剂的粒径小，粘度小，粒径稳定性好，具有良好的应用前景。