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Pyraclostrobin and tebuconazole compounded microcapsule suspending agent and preparation method thereof

A technology of microcapsule suspension and pyraclostrobin, which is applied in the field of microcapsule suspension compounded with pyraclostrobin and tebuconazole and its preparation, which can solve the problems of large environmental pollution and achieve less dosage , Enhanced adhesion, large spraying time interval

Inactive Publication Date: 2016-01-27
QINGDAO HANSEN BIOLOGIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But emulsifiable concentrate preparations are more polluting to the environment

Method used

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  • Pyraclostrobin and tebuconazole compounded microcapsule suspending agent and preparation method thereof
  • Pyraclostrobin and tebuconazole compounded microcapsule suspending agent and preparation method thereof
  • Pyraclostrobin and tebuconazole compounded microcapsule suspending agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: 6% pyraclostrobin tebuconazole microcapsule suspension

[0031] pyraclostrobin 4%; tebuconazole 2%; the solvent is toluene, the dosage is 10%; the emulsifier is castor oil polyoxyethylene ether and nonylphenol polyoxyethylene ether, the dosage is 3% and 3% respectively; Capsule skin material selects gelatin, gum arabic and formaldehyde (concentration 37%) for use, and consumption is respectively 1%, gum arabic 1% and 2%; Glycol, consumption is 4%; Viscosity regulator selects xanthan gum for use, consumption 0.2%; Water selects tap water for use, surplus.

[0032] The preparation method is: add pyraclostrobin and tebuconazole into the solvent toluene to dissolve completely, add emulsifier and stir well, then add water and shear at high speed for 0.5 hours, then add gelatin and gum arabic solution, add acetic acid dropwise Adjust the PH value, keep it for 2 hours to 24 hours at a reaction temperature of 30°C to 80°C, cool and add formaldehyde to cross-link and...

Embodiment 2

[0033] Example 2: 20% pyraclostrobin tebuconazole microcapsule suspension

[0034] pyraclostrobin 10%; tebuconazole 10%; solvent selection of xylene and cyclohexanone, the dosage is 10% and 5% respectively; emulsifier selection of fatty alcohol polyoxyethylene ether and styrylphenol polyoxyethyl ether Ether, the consumption is 2% and 4% respectively; The capsule skin material selects formaldehyde (concentration 37%), urea, consumption is respectively 8% and 5%; Glycerol is selected as the agent, and the consumption is 4%; the viscosity regulator is selected from magnesium aluminum silicate, and the consumption is 1%;

[0035] The preparation method is: add pyraclostrobin and tebuconazole into xylene and cyclohexanone to dissolve completely, add emulsifier and stir well, then add water and shear at high speed for 0.5 hours, then add formaldehyde-urea mixed solution, Add hydrochloric acid dropwise to adjust the pH value to an appropriate value, raise the temperature to 70°C and...

Embodiment 3

[0036]Example 3: 30% pyraclostrobin tebuconazole microcapsule suspension

[0037] pyraclostrobin 10%; tebuconazole 20%; solvent selection of toluene and acetonitrile, the dosage is 15% and 10% respectively; emulsifier selection of nonylphenol polyoxyethylene ether and styrylphenol polyoxyethylene ether, dosage respectively 4% and 2%; the capsule skin material is selected from toluene diisocyanate, polyethylene glycol 400 and polyvinyl alcohol, and the consumption is 2%, 9% and 1% respectively;; the viscosity modifier is selected from xanthan gum, and the consumption is 0.1%; The warning color is selected from rose essence, and the consumption is 0.1%, and the antifreeze is selected from ethylene glycol, and the consumption is 4%; the water is selected from tap water, and the balance is used.

[0038] The preparation method is: add pyraclostrobin and tebuconazole into xylene, acetonitrile and toluene diisocyanate to dissolve completely, add emulsifier and stir well, then add wa...

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Abstract

The invention belongs to the technical field of agricultural medicament, and particularly relates to a pyraclostrobin and tebuconazole compounded microcapsule suspending agent and a preparation method thereof. The pyraclostrobin and tebuconazole compounded microcapsule suspending agent includes, by weight, 0.5-6% of pyraclostrobin, 4.5-24% of tebuconazole, 10-35% of a solvent, 8-25% of an emulsifier, 0-5% of an antifreezing agent, 2-10% of a stabilizing agent, 0-2% of a defoamer, 2-15% of a capsule skin material, 0-5% of a warning color, 0-5% of a pH regulator, 0-5% of a viscosity regulator, and the balance water. After microencapsulation of the pyraclostrobin and tebuconazole compound pesticide, negative influence of many environmental factors such as light, heat, air, rain water, soil, microorganisms and other chemical substances on active ingredients of the pesticide is suppressed, the evaporation, decomposition, oxidation, degradation and loss rates of the pesticide are reduced, and thus the stability of the pesticide is enhanced, and the use scope is enlarged.

Description

technical field [0001] The invention belongs to the technical field of agricultural medicaments, and in particular relates to a microcapsule suspension composed of pyraclostrobin and tebuconazole and a preparation method thereof. Background technique [0002] Pyraclostrobin, also known as pyraclostrobin, the chemical name is, methyl(N)-[[[1-(4-chlorophenyl)pyrazol-3yl)-oxygen]-O-methoxy] -N-methoxycarbamate. It is a newly developed methoxyacrylate fungicide in recent years. Its mechanism of action is a mitochondrial respiration inhibitor, which prevents mitochondria from producing and providing the energy required for normal cell metabolism, and eventually leads to cell death. Pyraclostrobin has a broad bactericidal spectrum, and can control most diseases such as Ascomycetes, Basidiomycetes, Deuteromycetes, and Oomycetes. It has a strong inhibitory effect on the germination of spores and the growth of mycelium in leaves. It has protective and therapeutic activities, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N25/04A01N25/28A01P3/00A01N43/653
Inventor 李波王旭张黎辉吴本林申云龙
Owner QINGDAO HANSEN BIOLOGIC SCI
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