Pyraclostrobin ester microcapsule suspending agent

A technology of microcapsule suspension and pyraclostrobin, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of economic waste, environmental pollution, etc., reduce pollution, reduce equipment investment, and prolong drug efficacy The effect of duration

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

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%, which is not only a waste in the economy, but also causes large-scale environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: 5% pyraclostrobin microcapsule suspension.

[0026] Dissolve urea in formaldehyde, the weight ratio of urea and formaldehyde is 1:1.5, adjust the pH value to 8.5 with 10% sodium hydroxide aqueous solution, stir at a low speed at a temperature of 70°C, and keep warm for 1 hour to form a viscous and transparent urea-formaldehyde resin, add deionized water equal to the total weight of urea and formaldehyde, and stir at a low speed to obtain a clear and transparent urea-formaldehyde resin prepolymer aqueous solution.

[0027] Dissolve 5% pyraclostrobin technical material in 10% xylene, add 2% Nongru 1601# to fully emulsify, stir at 30°C at a speed of 1000 rpm to fully disperse it, and obtain pyraclostrobin pyraclostrobin mixture solution.

[0028] Add the urea-formaldehyde resin prepolymer aqueous solution to the pyraclostrobin mixture solution stirred at 1000 rpm, stir for 15 minutes to form a stable emulsion, then reduce the stirring rate to 500 rpm, and slowl...

Embodiment 2

[0029] Example 2: 10% pyraclostrobin microcapsule suspension.

[0030] Dissolve urea in formaldehyde, the weight ratio of urea and formaldehyde is 1:2, adjust the pH value to 8 with 10% sodium hydroxide aqueous solution, stir at a low speed at a temperature of 80°C, and keep warm for 1 hour to form a viscous and transparent urea-formaldehyde resin, add deionized water equal to the total weight of urea and formaldehyde, and stir at a low speed to obtain a clear and transparent urea-formaldehyde resin prepolymer aqueous solution.

[0031] Dissolve 10% pyraclostrobin technical material in 12% xylene, add 2% Nongru 700# to fully emulsify, stir at 30°C at a speed of 1200 rpm to fully disperse it, and obtain pyraclostrobin pyraclostrobin mixture solution.

[0032] Add the urea-formaldehyde resin prepolymer aqueous solution to the pyraclostrobin mixture solution stirred at 1000 rpm, stir for 15 minutes to form a stable emulsion, then reduce the stirring rate to 500 rpm, and slowly a...

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PUM

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Abstract

The invention discloses a pyraclostrobin ester microcapsule suspending agent, which is composed of following constitutes by weight percentage: 1% to 10% of pyraclostrobin ester, 3% to 20% of a capsule core solvent, 5% to 30% of capsule wall materials, 3% to 10% of an emulsifying agent, 1% to 5% of a dispersing agent, 0.1% to 5% of an antifreezing agent, 0.1% to 10% of potential of hydrogen (pH) adjusting agent, and balance of deionized water. The pyraclostrobin ester microcapsule suspending agent not only resolves the problem that pesticide effects can be affected by combination of pyraclostrobin and soil, simultaneously prolongs a validity period of pesticide effects by slowly releasing to reduce using amount, and consolidates preventing and curing effects. The pesticide is not prone to be affected by air, sunshine and rain to lose, thereby effectively controlling pollution on underground water and preventing ecological environment from changing.

Description

technical field [0001] The invention relates to an agricultural fungicide, in particular to a pyraclostrobin microcapsule suspension. 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. Therefore, it has become one of the future development directions of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N25/28A01N25/04A01P3/00
Inventor 曹希敏孟宪秋王龙江刘华金袁彩斌
Owner GUANGDONG ZHONGXUN AGRI TECH
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