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Dinotefuran synergistic suspending agent and preparation method thereof

A technology of dinotefuran and suspending agent, which is applied in the field of dinotefuran synergistic suspending agent and its preparation, can solve the problems such as the inability to prepare high-content dinotefuran suspending agent, and achieve high efficiency, lower solubility and insecticidal effect on crop pests Improved effect

Active Publication Date: 2015-06-03
HEBEI VEYONG BIO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this patent does not add a synergist, so it can only exert the general effect of the preparation. In addition, the invention does not add a retarding solvent and cannot prepare a high-content dinotefuran suspension concentrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 647 grams of water and 20 grams of 5# white oil to a reactor with a heating jacket, stir evenly, and then add 50 grams of modified polycarboxylate of dispersing wetting agent, 2 grams of thickener xanthan gum, and magnesium silicate. Aluminum 8g, antifreeze ethylene glycol 50g, defoamer polyether 1g, preservative sodium benzoate 1g, synergist cocamidopropyl betaine 20g and dinotefuran technical 200g mix well, High-speed shearing at 12000 rpm for 20 minutes; then two-stage sand milling to obtain 20% synergistic dinotefuran suspension agent as sample 1.

Embodiment 2

[0014] Add 532 grams of water and 30 grams of 5# white oil to a reactor with a heating jacket, stir evenly, and then add 60 grams of modified polycarboxylate with dispersing wetting agent, 1 gram of thickener xanthan gum, and silicic acid. Magnesium aluminum 5 grams, antifreeze ethylene glycol 40 grams, antifoaming agent n-octanol 1 grams, preservative sodium benzoate 1 grams, synergist cocamidopropyl betaine 30 grams and 300 grams of dinotefuran technical Uniform, high-speed shearing at 12,000 rpm for 30 minutes; then two-stage sand milling, a 30% synergistic dinotefuran suspension can be obtained as sample two.

Embodiment 3

[0016] Add 307 grams of water and 50 grams of 5# white oil to a reactor with a heating jacket, stir evenly, and then add 60 grams of modified polycarboxylate with dispersed wetting agent, 0.5 grams of thickener magnesium aluminum silicate, yellow 0.5g of raw gum, 30g of propylene glycol as antifreeze, 1g of simethicone as defoamer, 1g of sodium benzoate as preservative, 50g of cocamidopropyl betaine as synergist, and 500g of dinotefuran original medicine. , 12000 rpm for high-speed shearing for 50 minutes; then two-stage sand milling, 50% synergistic dinotefuran suspension agent can be obtained as sample three.

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Abstract

The invention relates to a dinotefuran synergistic suspending agent which is prepared from the following components in percentage by weight: 20-50% of dinotefuran, 2-5% of a dissolution inhibitor, 5-8% of a wetting dispersing agent, 0.1-1% of a thickener, 0.1% of a preservative, 3-5% of an anti-freezing agent, 0.1% of an antifoaming agent, 2-5% of a synergist and the balance being water. The preparation method comprises the following steps: premixing and shearing the dinotefuran, the dissolution inhibitor, the wetting dispersing agent, the thickener, the preservative, the antifreezing agent, the antifoaming agent, the synergist and water; and carrying out secondary sanding to form the product. The dinotefuran synergistic suspending agent provided by the invention is low in surface tension, high in pesticide effect, and adopts a simple preparation technology and simple application method; and a field test proves that the dinotefuran synergistic suspending agent provided by the invention has significant insecticidal efficacy.

Description

Technical field [0001] The invention belongs to the technical field of pesticide production, and specifically relates to a dinotefuran synergistic suspending agent and a preparation method thereof. Background technique [0002] Dinotefuran (dinotefuran) is a third-generation nicotine insecticide developed by Japan's Mitsui Chemicals Company. The agent has excellent systemic and osmotic effect, and shows high insecticidal activity at a very low dose. The medicine has a wide insecticidal spectrum and can prevent various pests of Hemiptera, Lepidoptera, Diptera, Orthoptera, Hymenoptera, Beetles, etc. The agent is very safe to mammals, birds and aquatic organisms, has no phytotoxicity to crops, and can be used in many crops such as rice, fruit trees, and vegetables. [0003] Modern pesticides are changing rapidly and are developing in the direction of environmental protection. Suspending concentrate (SC) is one of them. Pesticide suspending agent is a kind of pesticide formulation wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N25/04A01N25/30A01P7/04
Inventor 焦俊超
Owner HEBEI VEYONG BIO CHEM
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