Spirodiclofen microcapsule suspension

A technology of ester microcapsule and suspending agent, which is applied in the field of spirodiclofen microcapsule suspending agent, can solve problems such as economic waste and environmental pollution, and achieve the effects of reducing pollution, less investment, and reducing dosage

Active Publication Date: 2013-11-06
JIANGXI ZHONGXUN AGROCHEM
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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

[0026] Example 1: 2.5% spirodiclofen microcapsule suspension

[0027] 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.

[0028] Dissolve 2.5% spirodiclofen in 8% xylene, add 2% Nongru 1601# to fully emulsify, stir at 30°C at a speed of 1000 rpm to fully disperse it, and obtain spirodiclofen mixture solution.

[0029] Add the urea-formaldehyde resin prepolymer aqueous solution to the spirodiclofen 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 add An appropriate amount of oxa...

Embodiment 2

[0030] Example 2: 10% spirodiclofen microcapsule suspension.

[0031] 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.

[0032] Dissolve 10% spirodiclofen 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 spirodiclofen mixture solution.

[0033] Add the urea-formaldehyde resin prepolymer aqueous solution to the spirodiclofen 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 add An appropriate amount of dilute ...

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PUM

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Abstract

The invention discloses a spirodiclofen microcapsule suspension which comprises the following components by weight percentage: 1%-10% of spirodiclofen, 3%-20% of capsule core solvent, 5%-30% of capsule wall material, 3%-10% of emulsifier, 1%-5% dispersant, 0.1%- 5% of antifreezer, 0.1%-10% of pH regulator and the residual amount of deionized water. The spirodiclofen microcapsule suspension is a pollution-free acaricide which has good physical and chemical stability, strong emulsification and dispersion, and has high efficacy, broad spectrum and low toxicity. With the adoption of the spirodiclofen microcapsule suspension, the problem that the pesticide effect is affected due to the mixing of spirodiclofen and soil is solved, meanwhile the usage is reduced due to slow release property, the validity of pesticide effect is prolonged, the control efficiency is enhanced, the pesticide is not liable to damage by atmosphere, sunshine and rainwater or loss, the pollution to underground water is effectively controlled, and the change of ecological environment is prevented.

Description

technical field [0001] The invention relates to a pesticide dosage form, in particular to a spirodiclofen 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 pes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/28A01N43/12A01P7/02
Inventor 曹希敏孟宪秋王龙江刘华金袁彩斌
Owner JIANGXI ZHONGXUN AGROCHEM
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