Pymetrozine water emulsion and preparation method thereof

A technology of pymetrozine aqueous emulsion and pymetrozine, which is applied in the field of pesticides, can solve the problems of high use cost, endanger human health, environmental pollution and the like, and achieve the effects of low investment and equipment cost, high efficiency in formulation form, and environmental friendliness.

Inactive Publication Date: 2013-07-24
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of environmental pollution, harm to human health and high use cost in the prior art and develop a high-content, environmentally friendly, high utilization rate and easy-to-use pymetrozine water emulsion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the technical scheme of the present invention, take by weighing 5.11g of pymetrozine former powder, 5.0g of cyclohexanone, 10.0g of dimethylbenzene, the three are mixed, after fully dissolving, then add castor oil polyoxyethylene ether 3.0g, polyol fat Ester and its ethylene oxide adduct 1.0g, alkylphenol formaldehyde resin polyoxyethylene ether sulfate 1.0g, pyrogallic acid 2.0g, peanut oil 2.0g, ethylene glycol 4.0g, fully After stirring, make an oil phase, turn on the stirring and slowly add deionized water to make up to 100g, cut at 6000 rpm for 30 minutes and cut the water for 0.5-2 hours to obtain a milky white 5% pymetrozine water emulsion.

Embodiment 2

[0017] According to the technical scheme of the present invention, weigh 10.10 g of pymetrozine former powder, 15.0 g of ethyl acetate, and 10.0 g of cosolvent, mix the three, and after fully dissolving, add 2.0 g of alkylphenol polyoxyethylene ether, polyol 1.5g of fatty acid ester and its ethylene oxide adduct, 2.0g of sodium dioctyl maleate sulfonate, 2g of antioxidant 264, 4.0g of peanut oil, 4.0g of glycerol, in a preparation kettle After fully stirring to make an oil phase, turn on the stirring and slowly add deionized water to make up to 100g, cut at 6000 rpm for 30 minutes and cut the water for 0.5-2 hours to obtain a milky white 10% pymetrozine water emulsion.

Embodiment 3

[0019] According to the technical scheme of the present invention, take by weighing 15.0g of the former powder of pymetrozine, 15.0g of cyclohexanone, and 15.0g of cosolvent, the three are mixed, after fully dissolving, then add castor oil polyoxyethylene ether 4.0g, polyoxyethylene Sorbitan fatty acid ketone 2.0g, fatty alcohol polyoxyethylene ether 1.0g, alkylphenol formaldehyde resin polyoxyethylene ether sulfate 1.0g, epoxy soybean oil 5.0g, glycerin 4.0g, fully in the preparation kettle After stirring, make an oil phase, turn on the stirring and slowly add deionized water to make up to 100g, cut at 6000 rpm for 30 minutes and cut the water for 0.5-2 hours to obtain a milky white 15% pymetrozine water emulsion.

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Abstract

The present invention relates to a pymetrozine water emulsion and a preparation method thereof. The pymetrozine water emulsion includes the components by weight: 1-20%of pymetrozine, 5-20% of a solvent, 5-15% of a cosolvent, 4-15% of an emulsifier, 1-5% of a stabilizer, 0.5-2% of a dispersant, 1-5% of an antifreezing agent, and the balance deionized water. The preparation method includes: dissolving the pymetrozine in the solvent, then adding a certain proportion of the emulsifier, the stabilizer, the dispersant and the antifreezing agent, stirring fully in a preparation kettle to make into an oil phase, slowly adding deionized water to make up to 100% after stirring, shearing for 0.5-2 hours to obtain a milky white pymetrozine water emulsion, and finally dividing and packaging into a finished product. The pymetrozine water emulsion is efficient in preparation form, low in toxicity, environmental-friendly, safe for human and animals, and difficult to produce drug-resistant for diseases.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a pymetrozine aqueous emulsion and a preparation method thereof. Background technique [0002] Pymetrozine is a pyridine insecticide with high efficiency, low toxicity, low residue, long-lasting effect and strong systemic property. Pests showed excellent control effect. Studies using electropenetrography (EPG) techniques have shown that no matter in drip, feeding or injection experiments, as long as aphids or planthoppers are exposed to pymetrozine, they almost immediately produce a stylet blocking effect, stop feeding immediately, and eventually starve fatal, and the process is irreversible. [0003] The patents on pymetrozine mainly focus on mixing pymetrozine or pymetrozine with other pesticides to process wettable powders and water-dispersible granules. Modern pesticide formulations are developing towards water-based, ultra-micronized, non-powdered, and controlled rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/707A01N25/04A01P7/04A01P1/00
Inventor 阎工程周斌王龙江孟宪秋
Owner GUANGDONG ZHONGXUN AGRI TECH
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