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A kind of environment-friendly thiamethoxam water-soluble powder and preparation method thereof

A water-soluble powder, environment-friendly technology, applied in the field of new environment-friendly thiamethoxam water-soluble powder and its preparation, can solve the problems of large particle size of pesticides, diluent is easily clouded and precipitated after being left for a long time

Active Publication Date: 2016-09-21
南京善思生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the prior art, for solid preparations such as water-dispersible granules and wettable powders, after adding water, thiamethoxam particles are suspended in water through the action of a dispersant. On the one hand, the size of the pesticide particles is relatively large, and on the other hand, it is also a thermodynamic Unstable system, there is a tendency for crystal grains to aggregate, and the diluted solution is prone to turbidity or even precipitation after being left for a long time
In addition, the preparation process is long, and the production process includes jet milling, kneading, granulation, drying, etc., requiring investment in corresponding production equipment, which increases the production cost of the preparation

Method used

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  • A kind of environment-friendly thiamethoxam water-soluble powder and preparation method thereof
  • A kind of environment-friendly thiamethoxam water-soluble powder and preparation method thereof
  • A kind of environment-friendly thiamethoxam water-soluble powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Example 1 A kind of environment-friendly thiamethoxam water-soluble powder

[0094] Raw material composition: (unit: g)

[0095]

[0096] Prepared by:

[0097] a. Prepare various raw materials according to the formula;

[0098] b. Add castor oil polyoxyethylene ether (EL-40), fatty alcohol polyoxyethylene ether (AEO-09) and sodium dodecylsulfonate glycerin into the stirred tank, inject 60g of deionized water, and Stir to dissolve to obtain solution A;

[0099] c. Add thiamethoxam to the solution A, stir and dissolve to obtain solution B;

[0100] d. Add the remaining deionized water and stir at room temperature, then add tributyl phosphate, stir gently, let stand, and filter to obtain a clear and transparent solution C with a thiamethoxam content of about 1%.

[0101] e. Solution C is spray-dried to obtain 3.2g of an environmentally friendly thiamethoxam water-soluble powder with an average particle diameter of 50-150 microns, such as figure 1 shown.

[0102]...

Embodiment 2

[0103] Example 2 A multifunctional environment-friendly water-soluble powder of thiamethoxam

[0104] Raw material ratio: (unit: g)

[0105]

[0106]

[0107] Prepared by:

[0108] a. Prepare various raw materials according to the formula weight ratio;

[0109] b. Add castor oil polyoxyethylene ether (EL-40), fatty alcohol polyoxyethylene ether (AEO-09), sodium dodecylsulfonate, tea saponin, and fulvic acid into the stirring tank, and inject 60g Deionized water, stirred at room temperature, dissolved to obtain solution A;

[0110] c. Add thiamethoxam to the solution A, stir and dissolve to obtain solution B;

[0111] d. Add hydroxyethyl cellulose and chitosan dissolved in the remaining deionized water, add this solution to solution B, stir at room temperature to dissolve; then add tributyl phosphate, stir slightly, stand still, and filter , to obtain a clear and transparent target product, solution C with a content of about 2% thiamethoxam.

[0112] e. Solution C ...

Embodiment 3

[0114] Example 3 A multifunctional environment-friendly water-soluble powder of thiamethoxam

[0115] Raw material ratio: (unit: g)

[0116]

[0117] Using the preparation method and steps similar to Example 2, 16.1 g of the target product was obtained, wherein the content of thiamethoxam was about 17.6%.

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Abstract

The invention provides environmental-friendly thiamethoxam water-soluble powder. The environmental-friendly thiamethoxam water-soluble powder contains the following ingredients in parts by weight: 1-5 weight of thiamethoxam and 1-10 parts of action agent A; preferably, the environmental-friendly thiamethoxam water-soluble powder can also contain one or more of an action agent B, a functional agent and pesticide auxiliaries, wherein the action agent A is one or more selected from sulfonic acid group containing anionic surfactant, sulfuric acid group containing anionic surfactant and carboxylic acid group containing anionic surfactant; the action agent B is selected from non-ionic surfactant and / or natural macromolecular surfactant. According to the environmental-friendly thiamethoxam water-soluble powder provided by the invention, a preparation method of the environmental-friendly thiamethoxam water-soluble powder is simple, and a solution, which is homogeneous and thermodynamically stable, is obtained after the water-soluble powder is dissolved into water.

Description

technical field [0001] The invention belongs to the field of new formulations of pesticides, and in particular relates to a novel environment-friendly water-soluble thiamethoxam powder and a preparation method thereof. Background technique [0002] With the improvement of environmental protection awareness, the requirements for high efficiency and environmental friendliness of pesticide formulations are put forward. Studies have found that for the same pesticide technical, the effectiveness of the pesticide formulation depends on its formulation type and the dispersion state and size of the pesticide particles. Scientific common sense tells us that when other conditions are the same, the smaller the particle size of the pesticide original drug is, the larger its surface area is, and the wider the contact area with plant leaves and pests is, the more fully the drug effect will be, and the amount of pesticide used will be lower. reduce accordingly. [0003] Whether a pestici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/14A01N51/00A01P7/04
Inventor 张子勇梁冰
Owner 南京善思生态科技有限公司
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