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Avermectin emulsion pesticide and production technology thereof

A technology of abamectin and pesticide, applied in the field of abamectin water emulsion pesticide and its production technology, can solve the problems of limited development, poor adhesion and penetration, easy to freeze, etc. Simple process and stable dosage form

Inactive Publication Date: 2013-01-23
王龙华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Emulsion-in-Water products have some technical problems: 1) The storage stability time is short: the normal storage time of pesticides is 2-3 years, while the normal storage time of Emulsion-in-Water is 1 year Left and right; 2) Delamination phenomenon is prone to occur: it will cause demulsification due to temperature, physical and chemical changes of the original drug and additives, ultraviolet rays, time, water quality and other reasons, that is, the separation of water and solvent to form stratification; 3) Precipitation is prone to occur: due to the decomposition of the auxiliary agent and the original drug, the original drug is poured out of the preparation, forming a rice grain or crystal-like substance and sinking to the bottom, which greatly reduces the efficacy and effectiveness of the product. 4) It is difficult to solve the problem of pesticide synergy: since water is the main solvent, the formation of water emulsion is a principle of dynamic stability. Thione, etc., are extremely unstable in this dosage form. Therefore, the surface swelling force of the normal dosage form of the water-emulsion is almost the same as that of water. Poor adhesion and penetration are the biggest problems of the water-emulsion, and it is difficult to improve the drug resistance of the product. 5) Emulsion in water is easy to freeze in winter, especially in northern China where the temperature is lower than 15°C, which greatly limits the development of this formulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of abamectin aqueous emulsion insecticide, is made up of the composition of following percentage by weight:

[0024] Abamectin 1.8%, methylnaphthalene 8%, isophorone 2%, phenylethyl cumylphenol polyoxyethylene ether 6%, calcium dodecylbenzenesulfonate 2%, the rest is supplemented with water .

[0025] Results: 1. The dosage form is stable, and it can be stored at room temperature for more than 2 years; 2. The active ingredients do not degrade, and the average degradation rate is 0.1% when stored in heat at 52℃±2 for 15 days; stored in cold storage at -10℃±2 for 15 days without freezing , no crystallization, the hydrolysis rate is 0.01%; 3, the synergy is remarkable, the synergy reaches 69%.

Embodiment 2

[0027] A kind of high chlorine water emulsion insecticide, is made up of the composition of following percentage by weight:

[0028] Abamectin 2%, methyl naphthalene 10%, isophorone 3%, phenylethyl cumylphenol polyoxyethylene ether 8%, calcium dodecylbenzene sulfonate 3%, the rest is supplemented with water .

[0029] Results: 1. The dosage form is stable, and it can be stored at room temperature for more than 2 years; 2. The degradation rate of active ingredients is very low. The average degradation rate is 0.5% when stored in heat at 52℃±2 for 15 days; when stored in cold storage at -10℃±2 for 15 days. No freezing, no crystallization, the hydrolysis rate is 0.05%; 3. Significant synergism, up to 62%.

Embodiment 3

[0031] A kind of high chlorine water emulsion insecticide, is made up of the composition of following percentage by weight:

[0032] Abamectin 1%, methylnaphthalene 6%, isophorone 1%, phenylethyl cumylphenol polyoxyethylene ether 4%, calcium dodecylbenzenesulfonate 1%, the rest is supplemented with water .

[0033] Results: 1. The dosage form is stable, and it can be stored at room temperature for more than 2 years; 2. The average degradation rate is 0.1% when stored in heat at 52°C±2 for 15 days; in cold storage at -10°C±2 for 15 days, it does not freeze, does not crystallize, and hydrolyzes The rate is 0.03%; 3. Significant synergies, up to 53%.

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PUM

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Abstract

The invention discloses an avermectin emulsion pesticide and a production technology thereof. The pesticide comprises 1-2 percent of avermectin emulsion, 6-10 percent of methyl nano, 1-3 percent of isophorone, 4-8 percent of phenethyl isopropyl phenyl phenol ethoxylates, 1-3 percent of calcium dodecyl benzene sulfonate and the balance of water according to percent by weight, and a preparation method comprises processes of weighing, dissolving raw medicines, preparing mother liquor and shearing. The avermectin emulsion pesticide has the advantages that dosage form is stable, synergism is obvious, and the production technology is simple.

Description

technical field [0001] The invention relates to a water-emulsion insecticide, specifically an abamectin water-emulsion insecticide and a production process thereof, belonging to the field of water-emulsion insecticides. Background technique [0002] Emulsion-in-Water dosage form with the international code Ew, also known as concentrated emulsion, is a preparation in which the liquid or the liquid pesticide technical compound prepared by mixing with a solvent is dispersed in water with small droplets of 0.5-1.5 microns, and its appearance is milky white milk-like liquid. Water emulsion uses a large amount of water as the main solvent, saving natural resources. It is an internationally recognized environmentally friendly water-based formulation, with low cost of additives and simple production equipment. It is one of the main formulations in the current development of pesticides. [0003] There are some technical problems in water-emulsion products: 1) short storage stability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N25/30A01N25/04A01P7/04A01P7/02A01P5/00
Inventor 邓万平王龙华
Owner 王龙华
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