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Pesticide aqueous emulsion and preparation method thereof

A kind of technology of water emulsion, pesticide, is applied in the pesticide water emulsion containing abamectin and chlorantraniliprole and the preparation field thereof, can solve the problem that abamectin-chlorantraniliprole composition has not been reported, etc. problem, to achieve the effect of no fire hazard, convenient storage and transportation

Active Publication Date: 2012-12-05
SHENZHEN NOPOSION AGROCHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the aqueous emulsion of Abamectin-Chlorantraniliprole composition has not yet been reported to occur

Method used

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  • Pesticide aqueous emulsion and preparation method thereof
  • Pesticide aqueous emulsion and preparation method thereof
  • Pesticide aqueous emulsion and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a kind of preparation method of above-mentioned pesticide aqueous emulsion, comprises the following steps:

[0034]According to the above percentage by weight, the original drug of avermectin and chlorantraniliprole is dissolved in the solvent, and a UV-protecting agent is added to this oil phase, and the HLB value (Hydrophile-Lipophile Balance Number, hydrophilic-hydrophobic balance number) is added. value) of 5 to 7 surfactants or no surfactants to form the dispersed phase (oil phase); according to the above weight percentages, surfactants with HLB values ​​> 10, antifreeze agents, defoamers, thickeners Agent, antifungal agent and water are mixed to form the continuous phase (water phase). Under high-speed shear (5000-10000 rpm), the dispersed phase is added to the continuous phase, or the continuous phase is under high-speed shear (4000-10000 ) under the action of adding to the dispersed phase to prepare the pesticide emulsion in w...

Embodiment 1

[0037] 1 gram of 92% Abamectin, 24 grams of 95% Chlorantraniliprole are dissolved in 20 grams of mixed solvent containing JEFFSOL AG1723 (alkylene carbonate, produced by Huntsman Company) and Solvesso200, at <60 ℃ After slightly heating the original drug at a high temperature to completely dissolve into a transparent state, add 1 gram of BHT and 2.5 grams of castor oil polyoxyethylene ether to form the dispersed phase (oil phase) after emulsification. Under high shear (5000-10000rpm), add 1.5 grams of anionic surfactant tristyryl phenol polyoxyethylene ether phosphate, 0.2 grams of silicone defoamer, 4 grams of ethylene glycol, 0.1 grams of sodium benzoate, In the continuous phase (water phase) composed of 0.1 gram of xanthan gum and 45.6 gram of water, after the oil phase was added, the high shear was continued for 6 minutes to obtain a water emulsion. The viscosity of the sample is 170cP (measured by ROOKFIELD DV-+Pro viscometer No. 2 rotor speed 60, the same below), and the...

Embodiment 2

[0041] Dissolve 1.0 g of 92% Abamectin, 20 g of 95% Chlorantraniliprole in 21 g of a mixed solvent containing n-dodecylpyrrolidone and Solvesso150, and heat slightly at <60°C to completely dissolve the original drug into a transparent state Finally, 1 gram of BHA was added therein to make it completely dissolve into a dispersed phase. Under high shear (5000-10000), the continuous phase was added to nonionic surfactant containing 4 grams of fatty alcohol EO / PO block copolymer mixed with castor oil ethoxylates, 0.2 grams of silicone defoamer, In the continuous phase composed of 4.4 grams of propylene glycol, 0.2 grams of benzisothiazolinone, 0.2 grams of hydroxyethyl cellulose and 48 grams of water, continue to shear for 6 minutes after the addition, to obtain an aqueous emulsion. The tested sample has a viscosity of 185cP and a particle size of 0.3-4.0 microns.

[0042] Change the feeding method, the above-mentioned 57 grams of continuous phase is added to 43 grams of disperse...

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Abstract

The invention provides a pesticide aqueous emulsion and a preparation method thereof. The pesticide aqueous emulsion has effective constituents of abamectin and chlorantraniliprole amide and also comprises a solvent and a surface active agent, wherein the solvent is selected from one or more substances of N-alkyl pyrrolidone, alkylene carbonic ester, phthalic acid ester, ionic liquid and arene; the surface active agent is selected from one or more substances of an anion surface active agent and a nonionic surface active agent. The preparation method comprises the following steps: (1) preparing a disperse phase; (2) preparing a continuous phase; and (3) mixing the disperse phase and the continuous phase under high shear to prepare the pesticide aqueous emulsion. The pesticide aqueous emulsion has the advantages of stability, high efficiency, low toxicity, environmental protection, no ignition hazard, convenient storage and transportation, and the like.

Description

technical field [0001] The invention relates to a pesticide water emulsion and a preparation method thereof, in particular to a pesticide water emulsion containing abamectin and chlorantraniliprole and a preparation method thereof. Background technique [0002] Pesticide emulsion in water refers to a pesticide dosage form in which the water-insoluble original drug liquid or the solution obtained by dissolving the original drug in a water-insoluble organic solvent is dispersed in water. Compared with other traditional pesticide formulations, especially emulsifiable oil products, water in water emulsion replaces organic solvents that are toxic and harmful to the environment and humans and animals as the dispersion medium, reducing the amount of organic solvents, so it is environmentally friendly, has no fire hazard, storage and transportation With advantages such as convenience, water-emulsion has become an important direction in the development of pesticide formulations. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N43/56A01N25/04A01N25/30A01P7/00
Inventor 谢晔曹明章孔建王新军
Owner SHENZHEN NOPOSION AGROCHEM
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