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Pesticide composition containing pendimethalin and preparation method thereof

A pesticide composition, pendimethalin technology, applied in the directions of botanical equipment and methods, biocides, animal repellents, etc., can solve problems such as physical instability, and achieve the effects of reduced risk and high safety

Inactive Publication Date: 2011-09-21
南通联农佳田作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, similar products of commonly used suspending agents cause flocculation, delamination, creaming and other phenomena of suspending agents due to physical instability.

Method used

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  • Pesticide composition containing pendimethalin and preparation method thereof
  • Pesticide composition containing pendimethalin and preparation method thereof
  • Pesticide composition containing pendimethalin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]

[0038]

[0039] Premixing of ingredients: Add 3 grams of wetting and dispersing agent TERSPERSE 2700, 1 gram of auxiliary agent PlutonicPE6800 (produced by BASF, Germany), and 1.5 grams of colloidal stabilizer polyvinyl alcohol into 76-80 grams of water, stir well, and pendimethalin Add 10 grams of the original drug into the above-mentioned uniformly stirred mixture and mix to make a premix;

[0040] Grinding: The premix is ​​wet ground to a suspension in the particle size range of 1-10 microns.

[0041] Product preparation: Add 5 grams of antifreeze agent ethylene glycol, 0.3 grams of preservative formaldehyde, 0.5 grams of silicone defoamer, 0.2 grams of viscosity regulator xanthan gum, 1 gram of magnesium aluminum silicate, and pH adjustment to the above suspension. Appropriate amount of agent, so that the pH value is 4-8.

Embodiment 2

[0043]

[0044] Premixing of ingredients: Add 3 grams of wetting and dispersing agent TamolNN, 2 grams of auxiliary agent EmulsonAG PE, 1 gram of colloidal stabilizer hydroxyethyl cellulose HEC into 56-60 grams of water, stir well, and mix high-purity dry crystal dimethyl 30 grams of the original medicine of Wuling is added to the above-mentioned uniformly stirred mixture and mixed to make a premix;

[0045] Grinding: The premix is ​​wet ground to a suspension in the particle size range of 1-10 microns.

[0046] Product preparation: Add 5 grams of antifreeze agent glycerin, 0.1 grams of preservative Kaisong, 0.5 grams of silicone defoamer, 0.2 grams of viscosity regulator xanthan gum, and an appropriate amount of pH regulator to the above suspension to make the pH value In 4-8.

Embodiment 3

[0048]

[0049] Ingredients premixing: Add 4 grams of wetting and dispersing agent FS7PG, 1 gram of special additive ZS-618, 3 grams of dispersing agent TXC3, 2 grams of colloidal stabilizer polyvinylpyrrolidone PVP into 38-40 grams of water, stir well, and mix the pure Add 45 grams of the pendimethalin technical substance of the high dry crystal into the above-mentioned homogeneously stirred mixture and mix to make a premix;

[0050] Grinding: Wet grind the premix with a sand mill to form a suspension with a particle size ranging from 1 to 10 microns.

[0051] Product preparation: Add 5 grams of antifreeze agent propylene glycol, 0.1 grams of preservative Kaisong, 0.5 grams of silicone defoamer, 0.1 grams of viscosity regulator xanthan gum, and an appropriate amount of pH regulator to make the pH value at 4 -8.

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PUM

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Abstract

The invention provides a pesticide composition containing pendimethalin, and the pesticide composition provided by the invention comprises the following components in parts by weight: 0.1-50 parts of pendimethalin raw material, 2-10 parts of wetting dispersing agent, 1-3 parts of special assistant agent, 1-3 parts of glue stabilizing agent and 0.1-100 parts of water. The invention also provides apreparation method for the pesticide composition, and the method comprises the following steps: dissolving the wetting dispersing agent, the special assistant agent and the glue stabilizing agent in water; mixing the acquired solution with the pendimethalin raw material; and wet-grinding the mixture into a suspension solution with an average grain size of 1-10 microns. The pesticide composition has the advantages that the property of the pendimethalin suspension is excellent, the dispersibility is excellent, the suspension efficiency is high, the preparation is free from the phenomena such aslayering, crystallizing, creaming, and the like, the preparation acts at a target position in a solid particl mode, the effective constituents are difficult to volatilize, and the pesticide effect isdurable.

Description

technical field [0001] The invention relates to the field of pesticide formulation processing, in particular to a herbicide composition containing pendimethalin. Background technique [0002] Pendimethalin belongs to aniline herbicides, and its chemical name is N-(1-ethylpropyl)-2,6-dinitrogen-3,4-dimethylaniline. Physical and chemical properties: The pure product is orange-yellow crystal, melting point is 54-58°C, vapor pressure is 40mPa at 25°C, density: 1.19. Solubility in water is less than 0.5mg / L, acetone 700, xylene 628, corn oil 148, isopropanol 77, easily soluble in chlorinated hydrocarbons and aromatic hydrocarbon solvents. Stable at 5-130 degrees, stable to acid and alkali, slow photodecomposition. [0003] Pendimethalin mainly inhibits meristem cell division. Does not affect the germination of weed seeds. It works after the young shoots, stems and roots absorb the pesticide during the germination of weed seeds. In dicots, the absorption site is the hypocotyl...

Claims

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Application Information

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IPC IPC(8): A01N33/18A01N25/04A01N25/30A01P13/00
Inventor 仲苏林曹雄飞章东生吴建兰曹新梅
Owner 南通联农佳田作物科技有限公司
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