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Thiacloprid aqueous suspension agent and preparation method thereof

An aqueous suspension agent and thiacloprid technology, which is applied in the field of pesticides, can solve the problems of undisclosed types of dispersants and the like, and achieve the effects of enhanced properties such as rain erosion resistance and spreadability, good permeability, and a simple preparation method.

Active Publication Date: 2017-12-08
HUIZHOU YINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent application CN101213972A discloses a thiacloprid suspension, including thiacloprid, emulsifier 7208, dispersant, antifreeze and water, but does not disclose the specific dispersant type

Method used

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  • Thiacloprid aqueous suspension agent and preparation method thereof
  • Thiacloprid aqueous suspension agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment one thiacloprid aqueous suspension

[0032]Thiacloprid aqueous suspension, including the following components and their mass percentages: 35% thiacloprid, 4% wetting and dispersing agent, 4% synergist, 0.5% thickener, 3% antifreeze, 0.5% defoamer %, the balance is water. Wherein, the wetting and dispersing agent is composed of PEAS03 and sp-sc3 in a mass ratio of 1:1; the synergist is organosilicon BQ-809F; the thickener is composed of xanthan gum and magnesium aluminum silicate in 1:1 The mass ratio of 1 is composed; the defoamer is silicone oil; the antifreeze is propylene glycol.

[0033] The preparation method of thiacloprid aqueous suspension comprises the steps

[0034] A) Add water, wetting and dispersing agent and antifreeze agent of 65% formula quantity into reaction container, stir and mix;

[0035] B) Add thiacloprid to the reaction vessel, homogenize for 20 minutes with a homogenizer, pump into a sand mill and grind to particle size D 98 ≤4μm,...

Embodiment 2

[0037] Embodiment dithiacloprid aqueous suspension

[0038] Thiacloprid aqueous suspension, including the following components and their mass percentages: 40% thiacloprid, 5% wetting and dispersing agent, 3% synergist, 1% thickener, 0.5% preservative, 5% antifreeze , defoamer 0.5%, and the balance is water. Among them, the wetting and dispersing agent is composed of sp-2700 and PEAS03 in a mass ratio of 4:1, the synergist is a mixture of silicone BQ-809F and silicone T1118 in a mass ratio of 3:1, and the thickener is yellow Raw rubber and magnesium aluminum silicate are composed at a mass ratio of 1:1, the defoamer is AF1501, the antifreeze is ethylene glycol, and the preservative is Kathon.

[0039] The preparation method of thiacloprid aqueous suspension, comprises the steps:

[0040] A) Add water, wetting and dispersing agent and antifreeze agent of 70% formula quantity into reaction vessel, stir and mix;

[0041] B) Add thiacloprid to the reaction vessel, homogenize for...

Embodiment 3

[0043] Embodiment Trithiacloprid aqueous suspension

[0044] Thiacloprid aqueous suspension, including the following components and their mass percentages: 40% thiacloprid, 5% wetting and dispersing agent, 3% synergist, 1% thickener, 0.5% preservative, 5% antifreeze , defoamer 0.5%, and the balance is water. Among them, the wetting and dispersing agent is sp-2700, the synergist is silicone FS-608A, the thickener is composed of xanthan gum and magnesium aluminum silicate in a mass ratio of 1:1, the defoamer is AF1501, and the antifreeze agent It is ethylene glycol, and the preservative is Cathone.

[0045] The preparation method of thiacloprid aqueous suspension concentrate is identical with embodiment two.

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Abstract

The invention provides a thiacloprid aqueous suspension agent. The thiacloprid aqueous suspension agent comprises the following components by mass percent: 35-50% of thiacloprid, 3-10% of a wetting dispersant, 2-5% of a synergist, 0.05-2% of a thickener, 0-1% of a preservative, 2-6% of an antifreezing agent, 0.1-1% of a defoaming agent and the balance of water, wherein the wetting dispersant is selected from one or more of a polycarboxylate dispersant sp-2700, a gemini-like type dispersant sp-sc3, a phosphate ester type dispersant PEAS03, a carboxylate type dispersant CP9 and a non-ionic hydroxyl polyethylene oxide block copolymer dispersant 500LQ. The invention belongs to the technical fields of pesticides. The thiacloprid aqueous suspension agent provided by the invention has good anti-coalescence stability, is difficult to be oxidized or decomposed, strong in persistent effect, good in quality stability and enhanced in pharmaceutical effect and has lower surface tension and a smaller contact angle, good permeability, properties such as rain wash resistance and spreadability are obviously enhanced, and insects can be killed with strong effect.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a thiacloprid aqueous suspension and a preparation method thereof. Background technique [0002] Thiacloprid, chemical name: [3-(6-chloro-3-pyridylmethyl)-thiazoline-2-ylidene]cyanamide; 3-(6-chloro-3-pyridylmethyl)-1, 3-thiazoline-2-ylcyanamide; (3-((6-chloro-3-pyridyl)methyl)-1,3-thiazoline-2-ylidene)cyanamide, molecular formula: C10H9ClN4S. Thiacloprid is a new type of chloronicotinoid insecticide, which was jointly developed by Bayer Agrochemical Company of Germany and Bayer Agrochemical Company of Japan in the 1990s. It has special effects on sucking and chewing mouthparts pests. The mechanism of action of thiacloprid is different from other traditional insecticides. It mainly acts on the post-junction membrane of insect nerves. By binding to the nicotinic acetylcholine receptor, it interferes with the normal conduction of the insect nervous system, causing the blockage ...

Claims

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Application Information

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IPC IPC(8): A01N25/22A01N25/04A01N47/40A01P7/04
CPCA01N25/04A01N25/22A01N47/40
Inventor 王爱臣
Owner HUIZHOU YINNONG TECH
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