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Composition containing pesticide methylpyridine phosphorus microemulsion and preparation thereof

A technology of picoline microemulsion and picoline, which is applied in the field of pesticides to achieve long-lasting effects, improve storage stability, and reduce environmental pollution

Inactive Publication Date: 2013-04-17
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report about the microemulsion of pyridophos

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 10% picoline phosphorus microemulsion, its composition and percentage by weight are:

[0029] Pyridophos 10%

[0030] Cyclohexanone 10%

[0031] Castor oil polyoxyethylene ether (epoxy value 40) 5%

[0032] Calcium dodecylbenzenesulfonate 5%

[0033] Anti crystallization agent 3%

[0034] Deionized water balance.

[0035] Preparation:

[0036] The preparation of microemulsions is carried out in an emulsification tank. Firstly, pyridinate and cyclohexanone are mixed uniformly under mechanical stirring, then castor oil polyoxyethylene ether, calcium dodecylbenzenesulfonate and anti-crystallization agent are added, stirred and mixed uniformly, finally water is added, and the mixture is mixed at 20 Stir for 20 minutes at a speed of ~60 rpm to make it a uniform and transparent 10% picoline microemulsion product.

Embodiment 2

[0038] 20% picoline microemulsion, its composition and percentage by weight are:

[0039] Pyridophos 20%

[0040] Xylene 10%

[0041] Cyclohexanone 10%

[0042] Fatty alcohol oxyethylene ether 8%

[0043] Calcium dodecylbenzenesulfonate 5%

[0044] Anti crystallization agent 5%

[0045] Deionized water balance.

[0046] Preparation:

[0047] When preparing, firstly mix picoline, xylene and cyclohexanone in an emulsification tank by mechanical stirring, then put in fatty alcohol oxyethylene ether, calcium dodecylbenzenesulfonate and anti-crystallization agent, etc., stir and mix uniform, finally add water, and stir for 20 minutes at a rotating speed of 20-60 rpm to make it a uniform and transparent 20% picoline microemulsion product.

Embodiment 3

[0049] 5% picoline phosphorus microemulsion, its component and percentage by weight are:

[0050] Pyridophos 5%

[0051] Xylene 10%

[0052] Styrene Phenol Polyoxyethylene Polyoxypropylene Ether 8%

[0053] Calcium dodecylbenzenesulfonate 4%

[0054] Anti crystallization agent 5%

[0055] Deionized water balance.

[0056] Preparation:

[0057] When preparing, first mix methylpyridinate and xylene in the emulsification tank by mechanical stirring, then put in styrene phenol polyoxyethylene polyoxypropylene ether, calcium dodecylbenzenesulfonate and anti-crystallization agent, etc., and stir Mix evenly, finally add water, and stir for 20 minutes at a rotating speed of 20 to 60 rpm to make it a uniform and transparent 5% picoline microemulsion product.

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PUM

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Abstract

The invention relates to a composition containing pesticide methylpyridine phosphorus microemulsion and a preparation thereof, belonging to the technical field of pesticide. The composition comprises the components by weight percent: 1-20% of methylpyridine phosphorus, 1-20% of cosolvent, 1-20% of surface active agent, 1-5% of anti-crystallizing agent and balance water. The preparation method comprises the following steps of: evenly mixing the main agent methylpyridine phosphorus and the cosolvent in emulsification kettle under the mechanism stirring; then, adding the surface active agent andthe anti-crystallizing agent, and evenly stirring and mixing; and finally, adding water, stirring for 20min at the rotating speed of 20-60r / min, and forming even and transparent micro-emulsion product. The invention needs less organic solvent, not only is safe for transportation and use, but also is free from environmental pollution, and belongs to an environment-friendly pesticide preparation.

Description

technical field [0001] The present invention relates to a composition in the technical field of pesticides and a preparation method thereof, in particular to a composition containing the insecticide pyridophos-methyl microemulsion and a preparation method thereof. technical background [0002] In recent years, my country's pesticides have developed rapidly, and it has become a major producer and user of pesticides in the world. Pesticide preparations have also developed rapidly, and the ratio of the original drug to the preparation has reached 1:10. However, the structure of pesticide dosage forms in my country is still very unreasonable at present. The traditional dosage forms are still mainly emulsifiable concentrates and wettable powders, about half of which are emulsifiable concentrates, and the products contain a large amount of organic solvents. These organic solvents not only cause serious harm to the human body in the process of production, packaging and use, especi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/04A01N57/16A01P7/04A01P7/02
Inventor 吴明沈国清陆贻通朱福新王夕芳许鑫
Owner SHANGHAI JIAOTONG UNIV