Flusilazole microcapsule suspension and preparation method thereof

A technology of flusilazole microcapsules and suspensions, which is applied in the field of agricultural fungicides and its preparation, can solve the problems of short duration of flusilazole prevention and control of germs, consumption of petrochemical resources, environmental pressure, etc., and achieve environmental protection, sterilization Insect effect is good and performance is stable

Inactive Publication Date: 2012-07-11
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the flusilazole currently used for preventing and controlling pathogens has a relatively short duration, which causes farmers to frequently use the drug and continuously increase the dosage of the drug, and many areas have caused the emergence of drug resistance. Therefore, prolonging the duration of the drug has become an urgent problem to be solved. topic
In addition, the dosage form currently used for flusilazole is still mainly emulsifiable concentrate. Due to the use of a large amount of organic solvents, it not only consumes a large amount of petrochemical resources, but also causes great pressure on the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: 10% flusilazole microcapsule suspension.

[0029] Preparation method of urea-formaldehyde resin prepolymer aqueous solution: dissolve urea into formaldehyde, the weight ratio of urea and formaldehyde is 1:1.5, adjust the pH value to 8 with sodium hydroxide, stir at a low speed at a temperature of 80°C, and keep warm for 1 hours, a viscous and transparent urea-formaldehyde resin is generated, and deionized water equal to the total weight of urea and formaldehyde is added, and stirred at a low speed to obtain a transparent urea-formaldehyde resin prepolymer aqueous solution.

[0030] Dissolve 10% flusilazole completely in 5% xylene at room temperature, add 5% emulsifier alkylphenol polyoxyethylene ether and appropriate amount of deionized water while stirring, and shear at 2000 rpm After 20 minutes, a stable O / W emulsion was obtained. Reduce the shearing speed, add 10% urea-formaldehyde resin prepolymer aqueous solution while stirring, add 3% acetic acid in ba...

Embodiment 2

[0031] Example 2: 20% flusilazole microcapsule suspension.

[0032] Preparation method of urea-formaldehyde resin prepolymer aqueous solution: dissolve urea into formaldehyde, the weight ratio of urea and formaldehyde is 1:2, adjust the pH value to 8 with sodium hydroxide, stir at a low speed at a temperature of 80°C, and keep warm for 1 hours, a viscous and transparent urea-formaldehyde resin is generated, and deionized water equal to the total weight of urea and formaldehyde is added, and stirred at a low speed to obtain a transparent urea-formaldehyde resin prepolymer aqueous solution.

[0033] Dissolve 20% flusilazole completely in 7.5% xylene at room temperature, add 5% emulsifier styrylphenol polyoxyethylene ether and appropriate amount of deionized water while stirring, and shear at 2000 rpm After 20 minutes, a stable O / W emulsion was obtained. Reduce the shear speed, add 9% urea-formaldehyde resin prepolymer aqueous solution while stirring, add 3% acetic acid in batch...

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PUM

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Abstract

The invention discloses a flusilazole microcapsule suspension and a preparation method thereof. The flusilazole microcapsule suspension consists of the following components in percentage by weight: 1 to 20 percent of flusilazole, 3 to 15 percent of capsule core solvent, 5 to 30 percent of capsule wall material, 3 to 10 percent of emulsifying agent, 1 to 5 percent of dispersing agent, 0.1 to 10 percent of pH regulator and the balance of deionized water. The invention also discloses the preparation method for the flusilazole microcapsule suspension. The product has the advantages of low cost, stable properties, good efficacy, long duration, low toxicity and little environment pollution, is safe for the human being and livestock, and can meet the requirement of pollution-free agricultural production.

Description

technical field [0001] The invention relates to an agricultural fungicide and a preparation method thereof, in particular to a flusilazole microcapsule suspension and a preparation method thereof. Background technique [0002] Chemical control is an important means of preventing and controlling agricultural and forestry diseases and insect pests. Chemical pesticides play a very important role in increasing agricultural production and income. However, the use of pesticides, while ensuring food safety production, also brings a series of environmental and Social Issues. Not only due to the chemical pesticide itself, but also to a large extent 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 channels is as high as 50% to 60%. This is not only a waste of economy, but also causes extensive environmental pollution. Theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N55/10A01P3/00B01J13/14B01J13/20
Inventor 王龙江孟宪秋刘华金曹希敏袁彩斌
Owner GUANGDONG ZHONGXUN AGRI TECH
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