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Chlorantraniliprole and azadirachtin complex water dispersible granule and preparation method thereof

A technology of chlorantraniliprole and azadirachtin, applied in botany equipment and methods, insecticides, biocides, etc., can solve the problem of single dosage form, achieve high suspension rate, good thermal storage stability, and low cost cheap effect

Inactive Publication Date: 2011-02-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chlorantraniliprole and azadirachtin products currently used in the pesticide market have shortcomings. Azadirachtin is mainly concentrated in EC, and the dosage form of chlorantraniliprole insecticide products is mainly suspension concentrate, and EC preparations are often used Toxic organic solvents such as xylene, the shortcomings of existing product formulations are relatively single
At present, there is no report on the compound water dispersible granules of chlorantraniliprole and azadirachtin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: take by weighing chlorantraniliprole 0.1kg and azadirachtin 5.0kg, then with 12.0kg of phenethylphenol polyoxyethylene sodium sulfate, 5.0kg of alkyl sodium sulfate, 20.0kg of ammonium sulfate, carboxymethyl fiber After mixing 0.1kg of plain sodium, 0.2kg of citric acid, 20.0kg of mica powder and 37.6kg of kaolin evenly, pulverize into mother powder by ultra-fine jet mill, add 5.0kg of deionized water to the mother powder and mix evenly, granulate and dry , after sieving, after sampling and analysis, it is qualified and packaged to make chlorantraniliprole and azadirachtin compound water-dispersible granules. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The preparation was diluted with water to carry out the field drug efficacy test, and its 1500-fold liquid was 87.5% and 84.1% respectively on the 7t...

Embodiment 2

[0031] Embodiment 2: Take by weighing chlorantraniliprole 0.1kg and azadirachtin 15.0kg, then with dioctyl sodium sulfosuccinate 15.0kg, alkylnaphthalene sulfonate 5.0kg, bentonite 22.0kg, sodium polyacrylate 0.2 kg, sodium bisulfate 0.1kg, diatomaceous earth 20.0kg and calcium carbonate 22.6kg. After mixing evenly, it is pulverized into mother powder by an ultra-fine jet mill, and then 6.0kg of deionized water is added to the mother powder to mix evenly, granulated, dried, sieved, and then packaged after sampling and analysis to obtain chlorantraniliprole. Compound water dispersible granules with azadirachtin. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The preparation was diluted with water to carry out the field drug efficacy test, and its 1500-fold liquid was 90.2% and 92.3% respectively on the 7th day and 14th day...

Embodiment 3

[0032] Embodiment 3: take by weighing chlorantraniliprole 60.0kg and azadirachtin 15.0kg, then with sodium lignosulfonate 5.0kg, benzyl naphthalene sulfonate 4.5kg, polyethylene glycol 5.0kg, dextrin 0.2kg , 0.3kg of sodium wood alcohol and 10.0kg of bentonite, after mixing evenly, pulverize into parent powder by ultra-fine airflow mill, add 6.5kg of deionized water to the parent powder and mix evenly, granulate, dry, sieve and analyze by sampling Qualified packaging, that is, to make chlorantraniliprole and azadirachtin compound water-dispersible granules. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The preparation was diluted with water to carry out the field drug efficacy test, and its 3000-fold liquid had a control effect of 91.5% and 92.8% on the 7th day and 14th day after the application of the rice stem borer, an...

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Abstract

The invention discloses a chlorantraniliprole and azadirachtin complex water dispersible granule and a preparation method thereof. The water dispersible granule comprises the following raw materials by weight: 0.1-60% of chlorantraniliprole, 0.1-15% of azadirachtin, 3-25% of dispersing agents, 3-5% of wetting agents, 1-25% of disintegrating agents, 0.1-0.5% of binders, 0.1-0.5% of stabilizing agents, 10-60% of carriers and 1-10% of deionized water. The preparation method is characterized by carrying out weighing according to the proportion and mixing the weighed materials uniformly; adding active ingredients, auxiliaries and the carriers; and carrying out ultrafine grinding on the formula materials and then pelletizing the powder by extrusion. The water dispersible granule overcomes the harm of emulsifiable concentrates to the environment, has good wettability, high disintegration speed, good dispersibility, high suspensibility and good heat storage stability, is easy to use and harmless to people, livestock and the environment, has simple preparation process and is suitable for industrial production and large-area popularization.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a compounded water-dispersible granule of chlorantraniliprole and azadirachtin and a preparation method thereof. Background technique [0002] Water-dispersible granules are a new type of pesticide formulation developed in Europe and the United States in the 1980s. The International Federation of Pesticide Industry Associations (GIFAR) defines it as: granules used after disintegration and dispersion in water. Water-dispersible granules are mainly composed of active ingredients of pesticides, dispersants, wetting agents, binders, disintegrants and fillers, etc., with a particle size of 200μm-5mm, which will quickly disintegrate and disperse after entering water to form a high-suspension dispersion system; Water-dispersible granules cause little or no dust (when in use), thereby reducing toxicity during operation; water-dispersible granules do not flow, making metering more convenient and...

Claims

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Application Information

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IPC IPC(8): A01N25/14A01N43/56A01P7/04A01N43/90
Inventor 何道航李新伟
Owner SOUTH CHINA UNIV OF TECH
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