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Efficient cyfluthrin nano-emulsion composition and preparation method thereof

A technology of high-efficiency cyfluthrin and nanoemulsion, which is applied in botany equipment and methods, animal repellents, plant growth regulators, etc., can solve the problems of time-consuming and laborious, and achieve improved test efficiency, reduced test volume, and good stability Effect

Active Publication Date: 2016-10-12
山西农业大学植物保护学院(山西省农业科学院植物保护研究所)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in order to determine the phase boundary of the pseudo-ternary phase diagram, a large number of repeated experiments are required, which is time-consuming and laborious.

Method used

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  • Efficient cyfluthrin nano-emulsion composition and preparation method thereof
  • Efficient cyfluthrin nano-emulsion composition and preparation method thereof
  • Efficient cyfluthrin nano-emulsion composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of lambda-cyfluthrin nanoemulsion composition A

[0022] The nanoemulsion has the following components based on 100 parts by weight: 10g of liquid white wax, 2.5g of beta-cyfluthrin, 3.7g of Span80, 6.3g of Tween80, and the rest is supplemented with water.

[0023] The preparation steps are as follows:

[0024] 1. Mix 10g of liquid paraffin with 2.5g of beta-cyfluthrin, heat to 65° and stir at 150rpm for 15 minutes until the solution is clear.

[0025] 2. Add 3.7g Span80 and 6.3g Tween80 to the oil, and stir at 150rpm.

[0026] 3. Add 80g of water dropwise to the oil item at a speed of 1ml / min-1 at 65°C and a speed of 150rpm, and continue to stir at a stirring speed of 150rmp for 15 minutes after adding enough. A clear nanoemulsion can be obtained.

Embodiment 2

[0028] Preparation of lambda-cyfluthrin nanoemulsion composition B

[0029] The nanoemulsion has the following components based on 100 parts by weight: 20g of liquid white wax, 2.5g of beta-cyfluthrin, 3.7g of Span80, 6.3g of Tween80, and the rest is supplemented with water.

[0030] The preparation steps are as follows:

[0031] 1. Mix 20g of liquid paraffin with 2.5g of beta-cyfluthrin, heat to 65° and stir at 150rpm for 15 minutes until the solution is clear.

[0032] 2. Add 3.7g Span80 and 6.3g Tween80 to the oil, and stir at 150rpm.

[0033] 3. Add 80g of water dropwise to the oil item at a speed of 1ml / min-1 at 65°C and a speed of 150rpm, and continue to stir at a stirring speed of 150rmp for 15 minutes after adding enough. A clear nanoemulsion can be obtained.

Embodiment 3

[0035] Preparation of 2.5% Beta-cyfluthrin Nanoemulsion Composition E

[0036] The nanoemulsion has the following components based on 100 parts by weight: 10g of liquid white wax, 2.5g of beta-cyfluthrin, 7.4g of Span80, 12.6g of Tween80, and the rest is supplemented with water.

[0037] The preparation steps are as follows:

[0038] 1. Mix 20g of liquid paraffin with 2.5g of beta-cyfluthrin, heat to 65° and stir at 150rpm for 15 minutes until the solution is clear.

[0039] 2. Add 7.4g Span80 and 12.6g Tween80 to the oil, and stir at 150rpm.

[0040] 3. Add 80g of water dropwise to the oil item at a speed of 1ml / min-1 at 65°C and a speed of 150rpm, and continue to stir at a stirring speed of 150rmp for 15 minutes after adding enough. A clear nanoemulsion can be obtained.

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Abstract

The invention discloses an efficient cyfluthrin nano-emulsion composition and a preparation method thereof. The efficient cyfluthrin nano-emulsion composition is prepared from, by mass, a surfactant 6.6-10%, an oil phase 10-20%, efficient cyfluthrin 2.5%, eistilled water 70%-82%, wherein the total mass percentage is 100%. The obtained efficient cyfluthrin nano-emulsion composition has the advantages that the stability is good, the organic solvent consumption is low, and the composition is easy to operate and use in agricultural production and the like. The particle size of pharmaceutical liquid is 69-150 nm. The polydispersity index (PDI) is 0.15-0.048. By adopting a single factor method and a triangular coordinate diagram method and using the emulsion particle size, the polydispersity index (PDI) and water removing stability as evaluation indexes, the test quantity is reduced, and the test efficiency is improved.

Description

technical field [0001] The invention relates to the field of pesticide dosage form research, in particular to a beta-cyfluthrin nanoemulsion composition and a preparation method thereof. Background technique [0002] Since beta-cyfluthrin is slightly soluble in water, it is easily soluble in organic solvents such as acetone, toluene, and xylene. Most of the beta-cyfluthrin pesticides currently on the market are emulsifiable concentrates, microemulsions, and water emulsions. These dosage forms all have inevitable disadvantages. Although the emulsifiable concentrate preparation has a good wetting effect, a large amount of organic solvents in the emulsifiable concentrate preparation will cause damage to plants and the environment, and it is easy to cause phytotoxicity when applied on plants; although water is the main medium in the microemulsion, due to the high efficiency of fluorine Cypermethrin itself is slightly soluble in water. In the production process, a large amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N25/04A01P7/04
CPCA01N25/04A01N53/00
Inventor 张鹏九范仁俊高越史高川刘中芳
Owner 山西农业大学植物保护学院(山西省农业科学院植物保护研究所)
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