Benthiavalicarb-isopropyl microcapsule suspending agent and preparation method thereof

A technology of microcapsule suspending agent and benthiamid, applied in the directions of botanical equipment and methods, fungicides, biocides, etc., can solve the problems of consumption of petrochemical resources and short duration, and achieve environmental friendliness and long duration of effect. , The effect of meeting the needs of pollution-free prevention and control

Inactive Publication Date: 2012-07-04
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the duration of the currently used benthiazil to prevent and control bacteria is relatively short, causing farmers to frequently use the drug and continuously increase the dosage of the drug. Many areas have caused the emergence of drug resistance. Therefore, extending the duration of the drug

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: 2% benthiazil microcapsule suspension.

[0027] 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 triethanolamine, stir at a low speed at a temperature of 80°C, and keep warm for 1 hour , generate 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 transparent urea-formaldehyde resin prepolymer aqueous solution.

[0028] Dissolve 2% benthiazil in 5% xylene completely at room temperature, add 5% emulsifier alkylphenol polyoxyethylene ether and appropriate amount of deionized water while stirring, and cut at 2000 rpm Cut for 10 min to obtain a stable O / W emulsion. Reduce the shearing speed, add 5% urea-formaldehyde resin prepolymer aqueous solution while stirring, add 3% acetic acid in batches within 1 hour and adjust...

Embodiment 2

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

[0030] 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 triethanolamine, stir at a low speed at a temperature of 80°C, and keep warm for 1 hour , generate 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 transparent urea-formaldehyde resin prepolymer aqueous solution.

[0031] Dissolve 10% benthiazil completely in 20% xylene at room temperature, add 10% emulsifier sodium dodecylbenzene sulfonate and appropriate amount of deionized water while stirring, at 2000 rpm Shearing for 20 minutes resulted in a stable O / W emulsion. Reduce the shear speed, add 17.5% urea-formaldehyde resin prepolymer aqueous solution while stirring, add 3% acetic acid in batches within 1 hour and adj...

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PUM

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Abstract

The invention discloses a benthiavalicarb-isopropyl microcapsule suspending agent and a preparation method thereof. The benthiavalicarb-isopropyl microcapsule suspending agent comprises the following components in weight percentage: 1-10% of benthiavalicarb-isopropyl, 3-20% of capsule core solvent, 5-20% of capsule wall material, 3-10% of emulsifier, 1-5% of dispersing agent, 0.1-10% of pH adjusting agent and the balance of deionized water. The invention further discloses a preparation method for the benthiavalicarb-isopropyl microcapsule suspending agent. The benthiavalicarb-isopropyl microcapsule suspending agent disclosed by the invention has the characteristics of low cost, good stability, good pesticide effect, long duration, low toxicity, low pollution on environment, safety for use, and capability of meeting requirements on agricultural pollution-free production.

Description

technical field [0001] The invention relates to an agricultural fungicide and a preparation method thereof, in particular to a benthiazil 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. Therefo...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01N47/12A01P3/00
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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