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Beta-cypermethrin nano water agent, preparation method and applications thereof

A high-efficiency cypermethrin and nanotechnology, applied in the directions of botanical equipment and methods, applications, pesticides, etc., can solve the problems of high-efficiency cypermethrin being unable to meet the needs of use, seriously affecting the quality of agricultural products, accelerating food safety crisis, etc., and achieving excellent quick-acting properties. and long-lasting effect, no particle precipitation, low production cost

Inactive Publication Date: 2020-04-10
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both emulsifiable concentrate and water-in-emulsion contain a large amount of organic solvents. During use, organic solvents will not only cause serious harm to the environment, but also seriously affect the quality of agricultural products, accelerate food safety crises, and endanger human health; reduce the use of organic solvents Use and development of aqueous formulations is the inevitable way for the development of beta-cypermethrin formulations
[0004] With the continuous improvement of users' awareness of environmental protection and the rapid growth of demand for hygienic drugs, the existing formulations of beta-cypermethrin can no longer meet the needs of use

Method used

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  • Beta-cypermethrin nano water agent, preparation method and applications thereof
  • Beta-cypermethrin nano water agent, preparation method and applications thereof
  • Beta-cypermethrin nano water agent, preparation method and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030]

[0031] Preparation method: Weigh 10g of beta-cypermethrin active ingredient (calculated as active ingredients, the same below) and 70g of fatty alcohol polyoxyethylene ether phosphate, mix and stir for 0.5h at a speed of 90 rpm, and add 940g of water, and continue to stir for 1h to obtain 1% beta-cypermethrin nano-aqueous agent.

[0032] The nanometer water agent of this embodiment is a light yellow transparent liquid with a viscosity of 85 mPa.s and an average particle diameter of 13.0 nanometers.

[0033] The nano-aqueous agent of this embodiment can be miscible with water quickly after entering water, forming a completely transparent solution, and the dilution stability is qualified.

[0034] After 7d cold storage at 0°C and 14d hot storage at 54°C, the preparation did not precipitate and remained stable.

Embodiment 2

[0036]

[0037] The preparation method is the same as in Example 1, and 1.5% beta-cypermethrin nano-aqueous agent is obtained.

[0038] The appearance of the nano water agent in this example is a light yellow transparent liquid with a viscosity of 100 mPa.s and an average particle diameter of 16.5 nanometers.

[0039] The nano-aqueous agent of this embodiment can be miscible with water quickly after entering water, forming a completely transparent solution, and the dilution stability is qualified.

[0040] After 7d cold storage at 0°C and 14d hot storage at 54°C, the preparation did not precipitate and remained stable.

Embodiment 3

[0042]

[0043] The preparation method is the same as in Example 1, and 2% beta-cypermethrin nano-aqueous agent is obtained.

[0044] The appearance of the nano water agent in this example is a light yellow transparent liquid with a viscosity of 92 mPa.s and an average particle diameter of 18.0 nanometers.

[0045] The nano-aqueous agent of this embodiment can be miscible with water quickly after entering water, forming a completely transparent solution, and the dilution stability is qualified.

[0046] After 7d cold storage at 0°C and 14d hot storage at 54°C, the preparation did not precipitate and remained stable.

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Abstract

The invention belongs to the technical field of pesticides, and discloses a beta-cypermethrin nano water agent, which is prepared by taking beta-cypermethrin, a surfactant and water as raw materials,does not contain any organic solvents, and is prepared by adopting a surfactant micelle solubilizing method, wherein the mass percentage content of the beta-cypermethrin in the nano aqueous agent is 0.5-5%, the mass percentage content of the surfactant is 5-25%, and the balance is water. According to the invention, the nano water agent is prepared by adopting a surfactant micelle solubilizing technology, has excellent stability compared with the conventional pesticide dosage forms, is still stable after being stored for 7 days at a temperature of 0 DEG C and stored for 14 days at a temperatureof 54 DEG C, cannot precipitate beta-cypermethrin, is convenient to store, long in shelf life, low in production cost and excellent fast-acting property and persistence, does not have adverse reactions such as phytotoxicity and the like, and is suitable for unmanned aerial vehicles to use.

Description

technical field [0001] The invention belongs to the technical field of pesticide production and processing, and in particular relates to a new formulation of beta-cypermethrin and its preparation method and application. Background technique [0002] Beta cypermethrin, chemical name: 2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid-α-cyano-(3-phenoxy)benzyl ester. Molecular formula: C 22 h 19 C L2 NO 3 . Beta-cypermethrin is a broad-spectrum insecticide with high insecticidal activity against many kinds of pests. It can be applied to various fruit trees, various vegetables, crops such as grain, cotton, camellia and various forest trees. To tobacco budworm, cotton bollworm, diamondback moth, beet armyworm, litura, tea looper, pink bollworm, aphids, liriomyza, beetles, stinkbugs, psyllids, thrips, borers, It has a good killing effect on various pests such as leaf rollers, caterpillars, slugs, citrus leaf miners, and red wax scales. [0003] Beta-cypermethri...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N25/04A01N25/28A01N25/30A01P7/04
CPCA01N25/04A01N25/28A01N25/30A01N53/00
Inventor 高瑞花陈叶青邢刚洪鹏张宝俊
Owner NANJING HUAZHOU PHARMA
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