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Efficient cyfluthrin microcapsule suspending agent and preparation method thereof

A technology of high-efficiency cyfluthrin and microcapsule suspension, which is applied in botany equipment and methods, insecticides, biocides, etc., can solve problems such as environmental and worker impacts, and achieve low environmental pollution, stable performance, and easy degradation Effect

Inactive Publication Date: 2015-11-25
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The preparation methods of pesticide microcapsule suspensions include spraying method, decompression drying method, single (complex) coacervation method, in-situ polymerization method, interfacial polymerization method, etc. Among them, the interfacial polymerization method is currently used more widely because of its convenient operation and low production cost. , but the use of chemical materials such as ethylenediamine in production will have an impact on the environment and workers

Method used

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  • Efficient cyfluthrin microcapsule suspending agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation method:

[0027] (1), accurately weigh 8 grams of capsule wall material, wherein gelatin: gum arabic: sodium alginate is 1: 1: 1, add the remaining amount of deionized water, mix well, heat and stir, and the temperature is controlled at 60-70 ° C, Make it completely molten and set aside.

[0028] (2), accurately weigh 5 grams of the original drug of cyfluthrin, dissolve completely and uniformly with 3 grams of xylene, add 3 grams of emulsifier alkarylphenol polyoxyethylene ether phosphate, 1.5 grams of castor oil polyoxyethylene ether ,stand-by.

[0029] (3) Under the condition of stirring in step 1, the temperature is controlled at 60-70 ° C, 2 grams of dispersant alkyl aryl polyoxypropylene polyoxyethylene ether is added, and then the material in step 2 is slowly added to mix and emulsify uniformly.

[0030] (4) The granulation is carried out by the sharp hole method, and the solidified solution is a 2% calcium chloride solution.

[0031] (5) Separat...

Embodiment 2

[0035] 1. Preparation method:

[0036] (1), accurately weigh 10 grams of capsule wall gelatin / gum arabic / sodium alginate, wherein gelatin: gum arabic: sodium alginate is 1: 1: 1, add the remainder of deionized water, mix well, heat and stir, temperature Control at 60-70 ℃, make it completely molten state, stand by.

[0037] (2), accurately weigh 5 grams of the original drug of cyfluthrin, fully dissolve it with 3 grams of xylene, completely and evenly, add 4.5 grams of emulsifier alkarylphenol polyoxyethylene ether phosphate, 2 grams of castor oil polyoxyethylene ether ,stand-by.

[0038] (3) Under the condition of stirring in 1, the temperature is controlled at 60-70 ° C, and 3.5 grams of dispersant alkyl aryl polyoxypropylene polyoxyethylene ether is added, and then 2 is slowly added to mix and emulsify uniformly.

[0039] (4) The granulation is carried out by the sharp hole method, and the solidified solution is a 2% calcium chloride solution.

[0040] (5) Separation and...

Embodiment 3

[0044] 1. Preparation method:

[0045] (1), accurately weigh 8 grams of capsule wall gelatin / gum arabic / sodium alginate, wherein gelatin: gum arabic: sodium alginate is 1:1:1, add the remainder of deionized water, mix well, heat and stir, temperature Control at 60-70 ℃, make it completely molten state, stand by.

[0046] (2), accurately weigh 5 grams of the original drug of cyfluthrin, fully dissolve it with 3 grams of xylene, completely and uniformly, add 3 grams of emulsifier alkyl benzene sulfonate, 1.5 grams of alkylphenol polyoxyethylene phosphate, wait for use.

[0047] (3) Under the condition of stirring in 1, the temperature is controlled at 60-70°C, add 2 grams of dispersant alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, and then slowly add 2 to make it mix and emulsify evenly.

[0048](4) The granulation is carried out by the sharp hole method, and the solidified solution is a 2% calcium chloride solution.

[0049] (5) Separation and drying to ...

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Abstract

The invention relates to a preparation method of an efficient cyfluthrin microcapsule suspending agent. The microcapsule suspending agent is prepared by utilizing efficient cyfluthrin as a capsule core through a piercing-solidifying bath method. The microcapsule suspending agent comprises the following components in percentage by weight: 1%-40% of efficient cyfluthrin, 3%-15% of a capsule core solvent, 5%-10% of a capsule wall material, 3%-10% of an emulsifying agent, 1%-5% of a dispersing agent and the balance of water. The efficient cyfluthrin microcapsule suspending agent is high in stability, long in lasting period, safe in use and less in environmental pollution.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, in particular to a high-efficiency cyfluthrin microcapsule suspension and a preparation method thereof Background technique [0002] Chemical control is an important means for human beings to prevent and control agricultural and forestry diseases and insect pests. Chemical pesticides play a very important role in ensuring the increase of agricultural production and income. However, the use of pesticides not only ensures the safe production of food, but also brings a series of environmental residues, pollution and so on. and social issues. It is only due to the chemical pesticide itself, and largely due to the unreasonable processing and application methods of pesticide formulations. According to reports, the utilization rate of conventional pesticides is only 20% to 30%, and the loss rate through various ways is as high as 50% to 60%, which is not only a waste of economy, but also causes a ...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N25/04A01N25/28A01P7/04
Inventor 吴吉龙彭述明陈军张玉坤王敏
Owner GUANGDONG ZHONGXUN AGRI TECH
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