The invention discloses an
illite /
montmorillonite mixed-layer clay sterilization suspending agent, which is prepared from the following raw materials in percentage by weight: 40-70 percent of
illite clay mineral, 15-40 percent of
montmorillonite clay mineral and 5-30 percent of inorganic sterilization additive. Since the raw materials are natural
nanomaterials which have the performance of permanent suspension property and dispersibility, and
copper sulfate,
carboxymethyl cellulose and
alkyl quaternary ammonium salt
powder are added, the unique dispersibility and strong suspension property of the clay micro / nano level
powder in water are kept, and the sterilization capacity is also achieved. The inorganic suspending agent has the characteristics of high efficiency,
low toxicity, environmental friendliness and safety, the suspension rate reaches over 90 percent, the dispersibility and the suspension property of the
pesticide can be kept for long time, the problem of super-standard
pesticide caused by the conventional organic suspending agent is solved, and
pollution to environment and serious injury to human bodies caused by
pesticide residue in
crop products can be effectively reduced.