Pesticide control-release composition, nanometer formula bactericide and preparation method of nanometer formula bactericide

A technology of a composition and a fungicide, applied in the field of pesticide formulations, can solve the problem of low safety of non-target organisms and achieve the effect of reducing toxicity

Inactive Publication Date: 2017-09-15
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The object of the present invention is to provide a pesticide controlled-release composition and ...

Method used

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  • Pesticide control-release composition, nanometer formula bactericide and preparation method of nanometer formula bactericide
  • Pesticide control-release composition, nanometer formula bactericide and preparation method of nanometer formula bactericide
  • Pesticide control-release composition, nanometer formula bactericide and preparation method of nanometer formula bactericide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: Preparation of nanometer formula bactericide

[0082] (1) 100mg of nano-silica particles (average particle size of 50nm) was contacted with 100mL of water to form mixture A, and 100mg of pyraclostrobin was mixed with 2mL containing emulsifier (Tween 80) and stabilizer (polyethylene Ethylene glycol diglycidyl ether) methanol solution (in this 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;

[0083] (2) contacting solution A of step (1) with mixture A of step (1) under stirring to obtain solution B;

[0084] (3) 300 mg of sodium alginate was contacted with the solution B of step (2) under stirring to obtain a suspension A;

[0085] (4) 300mg of magnesium chloride was dissolved in 10mL of water to obtain a solution C, which was contacted with the suspension A in step (4) to obtain a suspension B;

...

Embodiment 2

[0094] Embodiment 2: Preparation of nanometer formula bactericide

[0095] (1) 100mg of nano-silica particles (average particle size of 50nm) was contacted with 100mL of water to form mixture A, and 500mg of pyraclostrobin was mixed with 8mL containing emulsifier (Tween 80) and stabilizer (polyethylene Ethylene glycol diglycidyl ether) methanol solution (in this 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;

[0096] (2) contacting solution A of step (1) with mixture A of step (1) under stirring to obtain solution B;

[0097] (3) 500 mg of sodium alginate is contacted with the solution B of step (2) under stirring to obtain a suspension A;

[0098] (4) Dissolving 320 mg of calcium chloride in 10 mL of water to obtain a solution C, which was contacted with the suspension A in step (4) to obtain a suspension B;

[00...

Embodiment 3

[0101] Embodiment 3: preparation nanometer formula fungicide

[0102] (1) 150mg of nano-silicon particles (average particle size of 60nm) was contacted with 100mL of water to form mixture A, and 720mg of pyraclostrobin was mixed with 10mL containing emulsifier (Tween 80) and stabilizer (polyethylene glycol) Alcohol diglycidyl ether) methanol solution (in this methanol solution, the methanol content is 89.31% by weight, the content of Tween 80 is 6.92% by weight, and the content of polyethylene glycol diglycidyl ether is 3.77% by weight) contact with Form solution A;

[0103] (2) contacting solution A of step (1) with mixture A of step (1) under stirring to obtain solution B;

[0104] (3) 600 mg of sodium alginate is contacted with the solution B of step (2) under stirring to obtain a suspension A;

[0105] (4) Dissolve 380mg of magnesium chloride in 10mL of water to obtain a solution C, which is contacted with the suspension A in step (4) to obtain a suspension B;

[0106] ...

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Abstract

The invention relates to the field of pesticide preparations and discloses a pesticide control-release composition, a nanometer formula bactericide and a preparation method of the nanometer formula bactericide. The composition contains the following components in percentage by weight: 10wt%-90wt% of alginate, 2wt%-60wt% of a nanometer silicon source, 2wt%-40wt% of multivalent cations and 5wt%-80wt% of pesticide active components. The nanometer formula bactericide provided by the invention has the function of intelligently and controllably releasing pesticide active components such as an antifungal agent, a pesticide and an herbicide encapsulated in the nanometer formula bactericide.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a pesticide controlled-release composition, a nano-formulation fungicide 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 show relatively poor solubility in aqueous solution, and the active ingredients of some pesticides will show up under harsh field conditions. destabilizing and reducing its effectiveness against target organisms. [0003] In order to apply pesticides effectively in the field, it is necessary to adjust the formulation of pesticides so that the active ingredients can be fully effective in various field environments and can reduce their toxicity to any non-target organisms. [0004] Pyraclostrobin is an antifungal agent belonging to the methoxyacrylate fungicides capable of inhibiting mitochondrial respiration (mito...

Claims

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Application Information

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IPC IPC(8): A01N25/12A01N47/24A01P3/00
CPCA01N25/12A01N47/24
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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