Benzothiostrobin-containing controlled-release composition and preparation method thereof

A technology of Benthoxystrobin and the composition is applied in the controlled-release composition containing Benthoxystrobin and the field of preparation thereof, which can solve problems such as unfavorable environmental protection and achieve the effect of reducing toxicity

Inactive Publication Date: 2017-10-27
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a controlled-release composition containing penthiostrobin and a nano-scale sterilizing composition containing the controlled-release composition in order to overcome the disadvantages of the prior art of penthiostrobin that is unfavorable to environmental protection Agents and their preparation methods

Method used

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  • Benzothiostrobin-containing controlled-release composition and preparation method thereof
  • Benzothiostrobin-containing controlled-release composition and preparation method thereof
  • Benzothiostrobin-containing controlled-release composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Example 1: Preparation of nano-formulation bactericide

[0079] (1) 100mg of nano-silica particles (average particle size of 50nm) are contacted with 100mL of water to form a mixture A, and 100mg of methiophene and 2mL containing emulsifier (Tween 80) and stabilizer (polyethylene Glycol diglycidyl ether) methanol solution (in the methanol solution, the methanol content is 88.98% by weight, the content of Tween 80 is 8.47% by weight, and the content of polyethylene glycol diglycidyl ether is 2.55% by weight) contact To form solution A;

[0080] (2) contacting the solution A of step (1) with the mixture A of step (1) under stirring to obtain solution B;

[0081] (3) Contacting 300 mg of sodium alginate with the solution B of step (2) under stirring to obtain suspension A;

[0082] (4) Dissolve 300 mg of magnesium chloride in 10 mL of water to obtain solution C, and contact this solution C with the suspension A of step (4) to obtain suspension B;

[0083] (5) Remove the solvent in...

Embodiment 2

[0091] Example 2: Preparation of nano-formulation bactericide

[0092] (1) 100mg of nano-silica particles (average particle size of 50nm) are contacted with 100mL of water to form a mixture A, and 500mg of methiophene and 8mL containing emulsifier (Tween 80) and stabilizer (polyethylene Glycol diglycidyl ether) methanol solution (in the methanol solution, the methanol content is 87.69% by weight, the content of Tween 80 is 6.39% by weight, and the content of polyethylene glycol diglycidyl ether is 5.92% by weight) contact To form solution A;

[0093] (2) contacting the solution A of step (1) with the mixture A of step (1) under stirring to obtain solution B;

[0094] (3) Contacting 500 mg of sodium alginate with the solution B of step (2) under stirring to obtain suspension A;

[0095] (4) Dissolve 320 mg of calcium chloride in 10 mL of water to obtain solution C, and contact this solution C with the suspension A of step (4) to obtain suspension B;

[0096] (5) Remove the solvent in t...

Embodiment 3

[0098] Example 3: Preparation of nano-formulation bactericide

[0099] (1) Contact 150mg of nano-silicon particles (with an average particle size of 60nm) with 100mL of water to form mixture A, and 720mg of Benthiastrobin with 10mL containing emulsifier (Tween 80) and stabilizer (polyethylene glycol Diglycidyl ether) methanol solution (in the methanol solution, the methanol content is 89.31 wt%, the content of Tween 80 is 6.92 wt%, and the content of polyethylene glycol diglycidyl ether is 3.77 wt%) to form Solution A;

[0100] (2) contacting the solution A of step (1) with the mixture A of step (1) under stirring to obtain solution B;

[0101] (3) Contact 600 mg of sodium alginate with the solution B of step (2) under stirring to obtain suspension A;

[0102] (4) Dissolve 380 mg of magnesium chloride in 10 mL of water to obtain solution C, and contact the solution C with the suspension A of step (4) to obtain suspension B;

[0103] (5) Remove the solvent in the suspension B by spray ...

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Abstract

The invention relates to the field of agricultural chemical preparations, and discloses a benzothiostrobin-containing controlled-release composition and a preparation method thereof. Based on the total weight of the composition, the composition contains the following components in percentage by weight: 10-90wt% of alginate, 2-60wt% of nano silicon source, 2-40wt% of multivalent cation and 5-80wt% of benzothiostrobin. The nano formulation bactericide provided by the invention is a nano preparation, and has a function of intelligently controlling the release of the packaged benzothiostrobin. The nano formulation bactericide provided by the invention can separate out the benzothiostrobin from an aquatic environment, and can obviously reduce the toxicity of the benzothiostrobin on non-target organisms.

Description

Technical field [0001] The invention relates to the field of pesticide preparations, in particular to a controlled-release composition containing benzothiazole and a preparation method thereof. Background technique [0002] The active ingredients of many pesticides are highly toxic to non-target organisms, or the active ingredients of many pesticides exhibit relatively poor solubility in aqueous solutions. Moreover, the active ingredients of some pesticides can also behave under harsh field conditions. It is unstable and reduces its preventive effect on target organisms. [0003] In order to effectively apply pesticides in the field, it is necessary to adjust the formulation of the pesticides so that the active ingredients in them can fully exert their efficacy in various field environments and can reduce their toxicity to any non-target organisms. [0004] Benthiastrobin is widely used in the prevention and treatment of powdery mildew, downy mildew, gray mold, brown spot, scab, cor...

Claims

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Application Information

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IPC IPC(8): A01N43/78A01N25/12A01N25/28A01P3/00
CPCA01N25/12A01N25/28A01N43/78
Inventor 杨光富W·M·维士瓦基斯·W·坎德伽马郝格非
Owner HUAZHONG NORMAL UNIV
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