Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof

A technology of difenoconazole and azoxystrobin, which is applied in the field of suspension preparation technology, can solve the problems of endangering human health, environmental pollution, high use cost, etc., and achieve the advantages of reducing control cost, expanding antibacterial spectrum, and high suspension rate Effect

Active Publication Date: 2012-09-19
利民化学有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the shortcomings in the prior art such as environmental pollution, harm to human health and high cost of use, the purpose of the present invention is to break through the existing suspending agent technology and develop a difenoconazole with stable formula, high eff...

Method used

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  • Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof
  • Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof
  • Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 7% difenoconazole and 25% azoxystrobin compounded suspension

[0033] Difenoconazole technical 7%, azoxystrobin technical 25%, wetting and dispersing agent YUS-SC3 3%, dispersant D-425 2%, antifreeze agent ethylene glycol 2.5%, adsorbent superfine white carbon Black 0.5%, preservative sodium benzoate 0.1%, thickener xanthan gum 0.15%, defoamer 1%, the balance is water. Weigh each component except xanthan gum in the formula and mix it with water to 95% according to the amount, mix well and place it in a sand mill for grinding, and grind it to 3-5 μm after 4 hours to obtain a preliminarily formed suspension product, and then mix the xanthan gum The raw gum is mixed with water to 5%, and added to the primary product of the suspending agent, and after being stirred by a mixer at a speed of 800 rpm for 2 hours, a suspension compounded with 7% difenoconazole and 25% azoxystrobin is obtained agent. After testing, the content of difenoconazole is 7%, the suspension ...

Embodiment 2

[0034] Example 2 The compounded suspension of 5% difenoconazole and 21% azoxystrobin

[0035] Difenoconazole technical 5%, azoxystrobin technical 21%, wetting and dispersing agent Tensiofix 35300 4%, dispersant YUS-TXC 3%, antifreeze agent ethylene glycol 3.5%, adsorbent superfine silica 0.5%, preservative sodium benzoate 0.1%, thickener xanthan gum 0.25%, defoamer 2%, the balance is water. Weigh the components of the formula except xanthan gum and mix them with water to 95%, mix them well and place them in a sand mill for grinding, and grind them to 3-5 μm after 3 hours to obtain a preliminarily formed suspension product, and then mix the xanthan gum Raw gum and water were mixed to 5%, and added to the primary product of the suspension, stirred by a mixer at a speed of 800 rpm for 1.5 hours to obtain 5% difenoconazole and 21% azoxystrobin suspending agent. After testing, the content of difenoconazole is 5%, the suspension rate of difenoconazole is 93%, the content of azoxys...

Embodiment 3

[0036] Example 3 9% difenoconazole and 28% azoxystrobin compounded suspension

[0037]Difenoconazole technical 9%, azoxystrobin technical 28%, wetting and dispersing agent TERSPERSE 4896 3%, dispersant T / 36 3%, antifreeze agent glycol glycerin 2.5%, adsorbent superfine white carbon Black 0.5%, preservative sodium benzoate 0.1%, thickener xanthan gum 0.2%, defoamer 1.5%, and the balance is water. Weigh each component in the formula except xanthan gum and mix it with water to 95%, mix it well and place it in a sand mill for grinding, and grind it to 3-5 μm after 5 hours to obtain a preliminarily formed suspension product. Xanthan gum was mixed with water to 5%, and added to the initial product of the suspension, stirred by a mixer at a speed of 800 rpm for 2.5 hours to obtain a compound of 9% difenoconazole and 28% azoxystrobin suspending agent. After testing, the content of difenoconazole is 9%, the suspension rate of difenoconazole is 91%, the content of azoxystrobin is 28%,...

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Abstract

The invention discloses a suspending agent formulated by difenoconazole and azoxystrobin and a preparation method of the suspending agent. The suspending agent comprises the following materials by mass: 5% to 9% of difenoconazole original drug, 21% to 28% of azoxystrobin original drug, 3% to 4% of wetting dispersant, 2% to 3% of dispersant, 2.5% to 3.5% of antifreeze, 0.15% to 0.25% of thickener, and the balance of water, and also comprises about 0.5% of adsorbent, about 0.1% of preservative, and 1% to 2% of antifoaming agent. The method comprises the following steps: (1) taking following material ingredients by weight: the difenoconazole original drug, the azoxystrobin original drug, the wetting dispersant, the dispersant, the antifreeze, and adding water to 95%, and mixing; (2) placing the above mixed materials in a sand mill, and grinding for 3h to 5h to obtain an initial product of the suspending agent; (3) mixing the thickener with water to 5%, and adding into the initial product of the suspending agent, then stirring with a stirrer at high-speed for 1.5h to 2.5h to obtain a finished product of the suspending agent. The suspending agent provided by the invention has the advantage of significant efficacy, good dispersion performance, good suspension performance, stable heat storage performance and the like, high sterilization effect in use, and good security.

Description

technical field [0001] The invention relates to the field of preparation of pesticide preparations, in particular to a preparation process of a suspending agent. Background technique [0002] Pesticide suspensions mostly use water as the dispersion medium, and the insoluble or slightly soluble solid raw materials are ground and pulverized, and dispersed evenly with the help of surfactants and other additives to form a highly suspended and flowable substance with fine particles. Relatively stable liquid-solid phase system. Compared with emulsifiable concentrate, avoid using a large amount of organic solvents; compared with wettable powder, there is no dust flying and drifting during processing and use, and the toxicity and irritation to humans and animals are relatively low, which can reduce the phytotoxicity of crops, let alone It will burn during storage and transportation, and has high safety; moreover, it has excellent performance, good dispersion, high suspension rate, ...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N43/54A01N25/04A01P3/00
Inventor 孙敬权徐勤江陈金华刘念江孙丽梅陈婧
Owner 利民化学有限责任公司
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