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Pyraclostrobin synergistic water suspension agent and preparation method thereof

A technology of pyraclostrobin and water suspending agent, applied in the field of pyraclostrobin synergistic water suspending agent and its preparation, can solve the problem of water suspending agent that is not easy to high content, affects the use effect, and the particle size is easy to increase, etc. problems, to improve the prevention and control effect, reduce manufacturing costs and transportation costs, and achieve the effects of stable quality

Inactive Publication Date: 2017-01-04
HEBEI VEYONG BIO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The melting point of pyraclostrobin technical is 63.7~65.2℃, which is relatively low. Common wetting and dispersing agents in the industry can only be made into water suspensions with a weight content of less than 15%, and it is difficult to make high content water suspensions.
The invention patent application with the application number 201210238776.8 discloses a pyraclostrobin aqueous suspension. Although it can be made into a 50% aqueous suspension, its stability is poor, and the particle size tends to increase during storage, resulting in precipitation. , affect the use effect after storage

Method used

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  • Pyraclostrobin synergistic water suspension agent and preparation method thereof
  • Pyraclostrobin synergistic water suspension agent and preparation method thereof
  • Pyraclostrobin synergistic water suspension agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 648 grams of water and 20 grams of guar gum hydroxypropyltrimethylammonium chloride into a reactor with a heating jacket, stir evenly, then add 50 grams of dispersing wetting agent ammonium xylenesulfonate, thickener xanthan 2 grams of glue, 8 grams of magnesium aluminum silicate, 50 grams of antifreeze urea, 1 gram of antifoaming agent polyether, 1 gram of preservative sodium benzoate, synergist glycerol tristearate, 20 grams and pyraclostrobin Mix 200 grams of the original drug evenly, and perform high-speed shearing at 12,000 rpm for 20 minutes; then perform secondary sand milling to a particle size of ≤ 5 μm to obtain a 20% pyraclostrobin aqueous suspension concentrate, which is recorded as sample 1.

Embodiment 2

[0021] Add 532 grams of water and 30 grams of guar gum hydroxypropyltrimethylammonium chloride in a reactor with a heating jacket, stir evenly, then add 60 grams of dispersing wetting agent ammonium xylenesulfonate, thickener yellow 1 gram of raw gum, 5 grams of magnesium aluminum silicate, 40 grams of antifreeze urea, 1 gram of defoaming agent n-octanol, 1 gram of preservative sodium benzoate, 30 grams of synergist glycerol tristearate and pyrazole ether bacteria Mix 300 grams of the ester drug evenly, and perform high-speed shearing at 12,000 rpm for 30 minutes; then perform secondary sand milling until the particle size is ≤ 5 μm to obtain a 30% synergistic pyraclostrobin aqueous suspension, which is recorded as sample 2 .

Embodiment 3

[0023] Add 197 grams of water and 50 grams of guar gum hydroxypropyltrimethylammonium chloride into a reactor with a heating jacket, stir evenly, then add 60 grams of dispersing wetting agent ammonium xylenesulfonate, thickener silicon 0.5 g of magnesium aluminum phosphate, 0.5 g of xanthan gum, 30 g of antifreeze urea, 1 g of antifoaming agent simethicone, 1 g of preservative sodium benzoate, 60 g of synergist glycerol tristearate and pyrazole ether Mix 600 grams of strytostrobin original drug evenly, and perform high-speed shearing at 12,000 rpm for 50 minutes; then perform secondary sand milling until the particle size is ≤5 μm, and 60% pyraclostrobin aqueous suspension can be obtained, which is recorded as a sample three.

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Abstract

The invention relates to a pyraclostrobin synergistic water suspension agent. The pyraclostrobin synergistic water suspension agent is prepared from the following components in percentage by weight: 20 percent to 60 percent of pyraclostrobin, 2 percent to 4 percent of a grain-diameter increasing inhibitor, 3 percent to 6 percent of a dispersing wetting agent, 0.1 percent to 1 percent of a thickener, 0.1 percent of a preservative, 3 percent to 5 percent of an anti-freezing agent, 0.1 percent of a de-foaming agent, 2 percent to 6 percent of a synergist and the balance of water. The pyraclostrobin, the grain-diameter increasing inhibitor, the dispersing wetting agent, the thickener, an emulsifier, the synergist and the water are pre-mixed and sheared, and then are subjected to two-grade sanding to form a finished product. The pyraclostrobin synergistic water suspension agent provided by the invention is low in surface tension and good in pharmacological effect; a preparation process is simple and an application method is simple; a field experiment shows that the pyraclostrobin synergistic water suspension agent has remarkable sterilization and treatment, and protection effects.

Description

technical field [0001] The invention belongs to the technical field of pesticide production, and in particular relates to a pyraclostrobin synergistic aqueous suspension and a preparation method thereof. Background technique [0002] Pyraclostrobin (dinotefuran) is a methoxyacrylate broad-spectrum fungicide developed by BASF, Germany. The agent has a wide bactericidal spectrum, permeability and local systemic activity, long-lasting effect, resistance to rain erosion, and protection, treatment, and leaf penetration and conduction. It is widely used to prevent wheat, rice, peanuts, grapes, vegetables, potatoes, bananas, lemons, coffee, walnuts, tea trees, tobacco and ornamental plants, etc. It has a good effect on controlling corn spot, cucumber powdery mildew, downy mildew, banana scab and leaf spot. [0003] Modern pesticides are changing rapidly and are developing in the direction of green environmental protection. Water suspension concentrate is one of them. Pesticide su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N37/02A01N25/04A01N25/30A01N25/22A01P3/00A01P1/00
CPCA01N47/24A01N25/04A01N25/22A01N25/30A01N37/02A01N2300/00
Inventor 焦俊超李立华
Owner HEBEI VEYONG BIO CHEM
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