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Synthetic method of cyhalothrin water base type microemulsion

A synthetic method, the technology of cypermethrin, which is applied in the field of synthesis of cypermethrin water-based microemulsion, can solve the problems of lack of preparation methods for pesticide microemulsion

Inactive Publication Date: 2014-05-14
JIANGSU INST OF ECOMONES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is still a lack of generally recognized scientific preparation methods for the preparation of pesticide microemulsions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Former drug (cypermethrin) 3%; Solvent (ethyl butyrate) 9%; Surfactant (TX-100: CTAB) 24%; Co-surfactant (n-butanol) 10%; Deionized water 54%, of which The ratio of the two surfactants TX-100 and CTAB to be compounded is 4:1:3:1; 5:2; 2:1; 3:2; l:l; l:2; l:3;1 : 4 can be compounded.

[0017] The prepared water-based pesticide microemulsion has been proved by experiments to have good heat storage stability, cold storage stability, and time stability.

[0018] The structure and properties of cypermethrin in the water-based pesticide microemulsion system did not change after it was prepared and placed for a period of time.

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PUM

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Abstract

Provided is a synthetic method of cyhalothrin water base type microemulsion. After raw materials are mixed, the method that emulsification water and oil are mixed is used for making the water base type microemulsion, and the raw materials comprise, by weight, 2%-4% of cyhalothrin, 8%-10% of solvents, 22%-26% of surface active agents, 6%-9% of cosurfactant and the balance deionized water, wherein the surface active agents are formed by compounding TX-100 and CTAB according to the molar ratio of (1-5):(1-5).

Description

technical field [0001] The invention relates to a method for synthesizing cypermethrin water-based microemulsion. Background technique [0002] Pesticide microemulsions are water and water-immiscible pesticide liquids, under the action of surfactants and co-surfactants, form isotropic, thermodynamically stable, transparent or translucent in appearance, and single-phase flow decentralized system. [0003] Pesticide microemulsion droplets are fine, and microemulsions with proper composition can form spontaneously without agglomeration, and can maintain high stability. The system has a single-phase uniformity and good fluidity. "Single phase" means no stratification, no crystallization, no liquid crystals, no precipitation, no suspended matter. Microemulsion is a thermodynamically stable system. In micelles, the contact surface between pesticide molecules and water is very small, which is conducive to improving the stability of pesticides that are unstable to water in water, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N53/08
Inventor 孔繁蕾张旺庚丁武松
Owner JIANGSU INST OF ECOMONES
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