Preparation method of propargite microemulsion

Abstract

The invention discloses a preparation method of a propargite microemulsion. By selecting and studying a plurality of solvents, emulsifying agents and preparation technologies, the invention replaces a large number of organic solvents with water, thus reducing the environment pollution from agricultural chemicals. The propargite microemulsion prepared by using an appropriate surface active agent and an addition agent through ultramicro-thinning process has high chemical and physical stability and strong emulsifying dispersivity, and is a non-polluted acaricide with high efficient, broad spectrum and low toxicity. The acaricide is characterized in that the propargite microemulsion contains 1 to 45 percent of propargite, 5 to 30 percent of solvent, 5 to 10 percent of stabilizing agent, 5 to 10 percent of synergistic agent, 5 to 30 percent of emulsifying agent, and 20 to 70 percent of water. The propargite crude oil is dissolved in the solvent into which emulsifying agent, synergistic agent and stabilizing agent are put and stirred evenly, and then the solvent is put in a viscolizer which is filled with dispersive medium water for strong mixing and homogenization, thus obtaining the propargite microemulsion product.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a method for preparing a propargite microemulsion. The invention uses water to replace a large amount of organic solvents through the screening and research of various solvents, emulsifiers and preparation processes, thereby reducing the pollution of pesticides to the environment. technical background [0002] Propargite, the common name of propargite, propargate, chemical name: 2-(4-tert-butylphenoxy)-cyclohexylprop-2-ynyl sulfite, is a low-toxicity broad-spectrum organic Sulfur acaricide, with contact and stomach toxicity, no systemic and penetration. It is effective against adult mites and nymphs, and the duration of effect can reach 30-35 days. Propargite can be used to prevent and control harmful mites in various crops such as cotton, vegetables, apples, citrus, tea, flowers, etc. It can also effectively control mites that are resistant to organophosphorus and organochlorine pest...

AI Technical Summary

Problems solved by technology

The large amount of emulsifiable concentrate formulation of propargite not only consumes a large amount of organic solvents, but also causes a waste of resources, and the storage and transportation of the product is also very difficult, and it will pollute the environment

[0004] Due to the relatively high viscosity of propargite crude oil, it has caused certain restrictions on the development of other formulations