Abamectin emulsion in water and preparation method thereof

A technology of abamectin and water-emulsion, which is applied in the field of pesticides, can solve the problems of sedimentation and water separation, affect drug efficacy, restrict the development of water-emulsion pesticides, etc., and achieve the effect of strong adsorption capacity

Inactive Publication Date: 2015-07-01
SHANTOU SHENTAI NEW MATERIAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a certain gap between the water-emulsion products developed and put on the market in China and foreign products. In the process of storage at room temperature, droplets coalesce and become larger, sedimentation and water separation, crystal precipitation, and even oil separation and demulsification are common. Phenomenon, affecting the efficacy of the drug, seriously restricting the rapid development of water-emulsion pesticides in my country

Method used

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Embodiment Construction

[0030] Below is the specific embodiment of the present invention, and this embodiment is only to the concrete description of abamectin emulsion in water formula and preparation method, is not in order to limit protection scope of the present invention.

[0031] 1. Formula (in kilograms)

[0032] raw material name 1.8% Abamectin Water Emulsion 6% Abamectin Water Emulsion 95% Abamectin original drug 1.89 6.32 Xylene 1.5 5.0 Cyclohexanone 3.0 10.0 G-300 polymer emulsifier produced by Daqian Company 3.25 4.25 Ethylene glycol 5.0 8.0 water 85.36 66.43

[0033] 2. Preparation method

[0034] (1) According to the above formula, soak the original drug of Abamectin in the mixture of xylene and cyclohexanone, and stir slowly until dissolved;

[0035] (2) Add 1 / 3 of the polymer emulsifier to the dissolved abamectin original drug, stir evenly, and use it as the oil phase for later use;

[0036] (3) Fully stir 2 / 3 of the polymer ...

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Abstract

The invention provides abamectin emulsion in water. The emulsion in water is composed of the following components in percentage by weight: 1-7% of abamectin, 3-15% of an organic solvent, 2-6% of a macromolecular emulsifying agent, 4-10% of an anti-freezing agent and the balance of water, wherein the macromolecular emulsifying agent is obtained by three types of monomers including an acrylic acid type acid or ester, alkenyl ammonium chloride and allyl amide at the mol ratio of 1 to (0.05-0.5) to (0-0.5) through inverse emulsion polymerization, wherein the pH value of the polymer is 5-9 at 25 DEG C, the viscosity of 1% de-ionized water dispersion liquid is 100mPa*s to 10000mPa*s and the relative molecular weight is 500000-20000000; and the organic solvent is one or more of toluene, xylene, kerosene, ethanol, acetone, cyclohexanone, methyl ethyl ketone, isopropanol, butanol, acetic ether, butyl acetate and solvent gasoline. By virtue of the emulsion in water, abamectin, which has extremely low solubility in the water, oil or organic solvent, can form a stable and efficient water emulsion system. The invention further provides a preparation method of the abamectin emulsion in water.

Description

technical field [0001] The present invention relates to a kind of pesticide, relate in particular to a kind of water emulsion type pesticide, more specifically relate to a kind of avermectin water emulsion. The present invention also relates to the preparation method of above-mentioned abamectin aqueous emulsion. Background technique [0002] Pesticide technical materials generally cannot be used directly, and must be processed and formulated into various types of preparations before use. The form of preparations is called dosage form, and commercial pesticides are sold to users in a certain dosage form. EC is to dissolve the original pesticide in an organic solvent in a certain proportion, add a certain amount of pesticide-specific emulsifier, and prepare a transparent homogeneous liquid. At present, the EC-type pesticides still occupy a considerable proportion in my country, and the solvents used are absolutely Most of them are highly volatile aromatic hydrocarbons, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/90A01P7/04A01P7/02
Inventor 张磊杨利超
Owner SHANTOU SHENTAI NEW MATERIAL TECH DEV CO LTD
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