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Aqueous emulsion formulated by abamectin and indoxacarb and preparation method thereof

A technology of abamectin and indoxacarb, which is applied in the field of compound water emulsion and its preparation, can solve the difficulty of making water emulsion and other problems, and achieve the effect of avoiding adverse effects

Active Publication Date: 2010-04-07
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solvent used in the water-emulsion must be insoluble in water, and abamectin and indoxacarb are difficult to dissolve in general organic solvents, so it is difficult to make a water-emulsion
[0005] At present, there is no relatively stable emulsion in water of abamectin and indoxacarb. In view of this, we provide a water emulsion of abamectin and indoxacarb and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 0.5 grams of 92% Abamectin and 15 grams of 95% indoxacarb were dissolved in 22 grams of mixed solvent containing N-octylpyrrolidone and Solvesso 150. After the solution was transparent, 1 gram of BHT, 2 grams of poly (12-Hydroxystearic acid) polyoxyethylene ether block copolymer is emulsified into dispersed phase, under high shear (5000-10000rpm), slowly adds to the polyoxyethylene ether containing 3 grams of tristyrylphenol polyoxyethylene ether (Nongru 600#), 0.3 g of silicone defoamer, 4 g of ethylene glycol, 0.1 g of sodium benzoate, 0.25 g of xanthan gum, and 51.85 g of water in the continuous phase (aqueous phase), continue to shear for a few minutes after adding. The viscosity of the obtained water emulsion is 200cP (measured by ROOKFIELD DV-+Proviscometer No. 2 rotor speed 60, the same as the following examples), and the particle size is 0.3-5 microns (measured by the Malvern laser particle size distribution analyzer, the same as the following examples).

[0033...

Embodiment 2

[0036] 2.0 grams of 92% Abamectin and 13 grams of 95% indoxacarb were dissolved in 25 grams of mixed solvent containing diethyl phthalate and Solvsso 200. After the original drug was completely dissolved and became transparent, 1 Gram BHA, 1.5 grams of nonionic surfactant polyisosuccinic anhydride-polyethylene glycol copolymer are emulsified into dispersed phase (oil phase), and under high shear (5000-10000rpm), add to containing 4 grams of nonylphenol In the continuous phase composed of polyoxyethylene ether (OP-20, HLB=16), 0.3 gram of silicone defoamer, 4 gram of propylene glycol, 0.1 gram of formaldehyde, 0.25 gram of gelatin and 48.85 gram of water, after adding the oil phase Continue shearing for several minutes to obtain an emulsion in water with a viscosity of 185 cP and a particle size of 0.25-4 microns.

[0037] Change the feeding method, add above-mentioned 57.5 grams of continuous phases under high shear (5000-10000rpm), add in 42.5 grams of dispersed phases, after...

Embodiment 3

[0040] 5.0 grams of 92% Abamectin and 11 grams of 95% indoxacarb are dissolved in 25.5 grams of mixed solvent containing JEFFSOL AG 1723 (alkylene carbonate, produced by Huntsman Company) and Solvesso200, at <60 degrees Celsius temperature Under heating slightly, after the original drug is completely dissolved into a transparent state, add 1 gram of BHT, 2.5 grams of nonionic surfactant castor oil polyoxyethylene ether (By-125) to emulsify into a dispersed phase (oil phase). Under high shear (5000-10000rpm), the disperse phase is added to containing 3.5 grams of anionic surfactant tristyrylphenol polyoxyethylene ether phosphate (neutralized with triethanolamine, Soprophor FL is produced by Rhdia Company), 0.3 grams Silicone defoamer, 4 grams of polyethylene glycol, 0.1 gram of sorbic acid, 0.25 gram of polyvinyl alcohol, 1 gram of phosphoric acid and 45.85 grams of water in the continuous phase (water phase), after the oil phase is added, continue to high shear After cutting f...

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PUM

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Abstract

The invention provides an aqueous emulsion formulated by abamectin and indoxacarb, comprising the following components by mass percent: 0.1-20% of abamectin, 0.3-15% of indoxacarb, 5-50% of solvent which is insoluble in water, 0.1-20% of surface active agent and a proper amount of water. Compared with the prior art, the aqueous emulsion formulated by abamectin and indoxacarb of the invention uses relatively green and environment protective solvent, and reaches a certain stability under the coordination of corresponding surface active agent and other auxiliary agent; the pesticide effect thereof is similar with the traditional missible oil when the aqueous emulsion is used in the same dilution factor; and meanwhile a large amount of harmful solvent used in aqueous emulsion is avoided, thus avoiding the adverse effects of the harmful solvent on the environment and the health of users. The invention also relates to a preparation method of the aqueous emulsion.

Description

technical field [0001] The invention relates to a pesticide preparation and a preparation method thereof, in particular to a compound water emulsion and a preparation method thereof. Background technique [0002] Water-based emulsion is an environmentally friendly pesticide formulation developed at home and abroad in recent years. Since the solvent used in the formulation is much less than the traditional EC, it is less harmful to the environment and safe for users. Therefore, it is one of the water-based formulations that replace EC. kind. [0003] Indoxacarb (Indoxacarb) is a new oxadiazine insecticide developed by DuPont. It has contact killing and stomach poisoning effects, and is effective for larvae of all ages. The insecticide has no cross-resistance, and its mechanism of action is to block the sodium ion channel in the insect nerve cells, so that the nerve cells lose their function. Indoxacarb has low toxicity to mammals and livestock, and is very safe to beneficia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N47/38A01N43/90A01P7/00
Inventor 林雨佳赵军刘立栓谢晔曹明章孔建王新军
Owner SHENZHEN NOPOSION AGROCHEM
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