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Slow release dry suspension agent containing azoxystrobin and tebuconazole and preparation method of slow release dry suspension agent

A technology of dry suspension containing azoxystrobin, which is applied in the field of slow-release dry suspension and its preparation, and can solve the problem of no cross-resistance of fungicides

Inactive Publication Date: 2019-09-27
JIANGYIN SULI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has a good effect on almost all fungal diseases (Ascomycetes, Basidiomycetes, Oomycetes and Deuteromycetes), such as powdery mildew, rust, glume lameness, net spot, downy mildew, rice blast, etc. activity, and no cross-resistance with existing fungicides

Method used

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  • Slow release dry suspension agent containing azoxystrobin and tebuconazole and preparation method of slow release dry suspension agent
  • Slow release dry suspension agent containing azoxystrobin and tebuconazole and preparation method of slow release dry suspension agent
  • Slow release dry suspension agent containing azoxystrobin and tebuconazole and preparation method of slow release dry suspension agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 45% azoxystrobin tebuconazole dry suspension

[0031] Azoxystrobin 15%, Tebuconazole 30%, Lincomycin 0.2%, Wetting agent sodium alkyl sulfate 2%, Binder amylose corn starch 3%, Dispersant calcium lignosulfonate 10%, Polymer Carboxylic acid sodium salt 10%, defoamer 1%, grinding aid magnesium stearate 1%, disintegrant urea 10%, filler is sodium sulfate to make up to 100%, pre-add water in the feeding kettle (liquid and solid ratio The ratio is 1:1), the materials are put into the feeding kettle in order, sheared to a homogeneous phase, and sanded by a sand mill until the particle size d98≤5μm enters the finished kettle. Add 2% polyvinyl alcohol stabilizer, 2% cyclodextrin, 0.3% xanthan gum, and 0.5% carboxymethyl cellulose into the finished product kettle, and continue to stir evenly. After the material is filtered, it is transported to the top of the tower for atomization through a high-pressure pump. The inlet air temperature was set at 120°C, the outlet ai...

Embodiment 2

[0032] Example 2 50% azoxystrobin tebuconazole dry suspension

[0033] Azoxystrobin 25%, tebuconazole 25%, lincomycin 0.1%, wetting agent sodium alkylsulfonate 1.5%, binder amylose corn starch 3%, dispersant agent sodium lignosulfonate 12%, Polycarboxylate sodium salt 8%, defoamer 1%, grinding aid magnesium stearate 1%, disintegrant ammonium sulfate 10%, filler is sodium sulfate to make up to 100%, pre-add water (liquid and The solid ratio is 1:1), the materials are put into the feeding kettle in order, sheared to a homogeneous phase, and sanded by a sand mill until the particle size d98≤5μm enters the finished kettle. Add 2% sodium carboxymethyl starch stabilizer, 1% cyclodextrin, 0.3% xanthan gum, and 1.5% modified chitosan to the finished product kettle, and continue to stir evenly. After the material is filtered, it is transported to the top of the tower for atomization through a high-pressure pump. The inlet air temperature was set at 118°C, the outlet air temperature w...

Embodiment 3

[0034] Example 3 55% azoxystrobin tebuconazole dry suspension

[0035] Azoxystrobin 15%, Tebuconazole 40%, Lincomycin 0.3%, Wetting agent Sodium Isopropyl Naphthalene Sulfonate 1.5%, Binder Amylose Corn Starch 3%, Dispersant Sodium Lignosulfonate 13% %, polycarboxylate sodium salt 10%, defoamer 1%, grinding aid magnesium stearate 1%, disintegrant urea 5%, filler is sodium sulfate to make up to 100%, pre-add water in the feeding kettle (liquid The ratio of solid to solid is 1:1), and the materials are put into the feeding kettle in order to cut to a homogeneous phase, and then sanded by a sand mill until the particle size d98≤5μm enters the finished kettle. Add 4% of stabilizer polyvinyl alcohol, 3% of cyclodextrin, 0.2% of xanthan gum, and 2% of modified chitosan into the finished product kettle, and continue to stir evenly. After the material is filtered, it is transported to the top of the tower for atomization through a high-pressure pump. The inlet air temperature was se...

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Abstract

The invention provides a slow release dry suspension agent containing azoxystrobin and tebuconazole. The dry suspension agent is a hollow small spherical dry suspension agent, has a slow-release effect, and is prepared from 10-90wt% of active ingredient, 1-10wt% of wetting agent, 5-25wt% of dispersant, 1-5wt% of binder, 1-5wt% of penetrant, 1-20wt% of disintegrant, 0.1-3wt% of defoamer, 0.1-5wt% of grinding aid, 1-5wt% of stabilizer, and a filler complemented to 100wt%; the active ingredients are azoxystrobin and tebuconazole, and a weight ratio of lincomycin to azoxystrobin to tebuconazole to lincomycin is (1- 80):(1- 80):(0.1- 0.3). The dry suspension agent disclosed by the invention uses azoxystrobin and tebuconazole as main components, and lincomycin as a synergistic component, and can reduce the application amount of a drug and prolong the service life of the drug while improving the sterilization effect and the broad spectrum of sterilization and prolong the sterilization duration.

Description

technical field [0001] The invention relates to the technical field of pesticide production, in particular to a slow-release dry suspension containing azoxystrobin and tebuconazole and a preparation method thereof. Background technique [0002] Azoxystrobin, English name Azoxystrobin, Chinese alias (E)-[2-[6-(2-cyanophenoxy)pyrimidin-4-yloxy]phenyl]-3-methoxymethyl acrylate, chemical formula C22H17N3O5, azoxystrobin is a new type of high-efficiency, broad-spectrum, systemic fungicide. It can be used for stem and leaf spray, seed treatment, and soil treatment. It is effective against almost all fungal diseases (Ascomycetes, Basidiomycetes, Oomycetes and Deuteromycetes), such as powdery mildew, rust, glumes, net spot, downy mildew, rice blast, etc. activity, and no cross-resistance with existing fungicides. It is safe for cereals, rice, grapes, potatoes, vegetables, fruit trees and other crops. [0003] Tebuconazole, English name Tebuconazole, Chinese alias 1-(4-chlorophen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/14A01N43/54A01N43/653A01N43/36A01P3/00
CPCA01N25/14A01N43/36A01N43/54A01N43/653
Inventor 汪静莉缪金凤徐玉凯章自升孙磊陆亚芬陆国库王成宇
Owner JIANGYIN SULI CHEM
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