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Pesticide emulsion and preparation method thereof

An emulsion and pesticide technology, applied in botany equipment and methods, insecticides, animal repellents, etc., can solve the problems affecting the effect of abamectin, easy decomposition of abamectin, etc., and achieve high production Application value, low cost, and the effect of enhancing resistance

Active Publication Date: 2010-03-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a preparation method of pesticide emulsion, aiming to solve the problem that after the application of the existing spirofen-diclofen and abamectin pesticide composition, abamectin is easy to decompose under the action of sunlight, which affects avermectin. The problem of the effect of antibiotics

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0016] Specifically, the preparation method of the pesticide emulsion of the embodiment of the present invention comprises the following steps:

[0017] Prepare the avermectin molecular capsule system, the avermectin molecular capsule system is mixed uniformly by the capsule wall material, the cosolvent and the first part of water under heating conditions (generally heated to 55-60°C), and then add the avermectin mixed with the first emulsifier evenly, cooled naturally to room temperature, the capsule wall material is β-cyclodextrin and / or γ-cyclodextrin, the first emulsifier is fatty alcohol polyoxyethylene ether, lost One or more of sorbitan monooleate and polyoxyethylene sorbitan monolaurate, the number of polyoxyethylene monomers in the polyoxyethylene sorbitan monolaurate is 20;

[0018] preparing a water phase, the water phase is uniformly formed by mixing a thickener and a second part of water;

[0019] Prepare an oil phase, the oil phase is formed by mixing spirodiclo...

Embodiment 1

[0043] Abamectin 5 kg, β-dextrin 20 kg, ethanol 30 kg, sorbitan monooleate 20 kg, spirodiclofen 50 kg, propylene oxide / ethylene oxide block copolymer 20 kg, Fatty alcohol polyoxyethylene ether phosphate 20 kg, D-limonene 100 kg, isooctyl alcohol 40 kg, 2,6-tert-butyl p-cresol 5 kg, polyvinyl alcohol 30 kg, modified polysiloxane 1 kg and 659 kg of water.

[0044] Preparation

[0045] 1. Abamectin Molecular Encapsulation

[0046] Mix β-cyclodextrin, ethanol, and 100 kg of water, heat to 55-60°C, and homogenize for 5 minutes at 5000 rpm. Under the stirring condition of 4000 rev / min, add the mixed homogeneous liquid of abamectin, isooctyl alcohol and sorbitan monooleate, keep stirring at 55-60°C for 2h, and cool naturally to room temperature to obtain Avermectin Prime molecular capsule system;

[0047] 2. Water phase production

[0048] Polyvinyl alcohol is uniformly mixed with 564 kilograms of water to form an aqueous phase;

[0049] 3. Production of oil phase

[0050] Spi...

Embodiment 2

[0054] Abamectin 5 kg, β-cyclodextrin 20 kg, ethanol 30 kg, polyoxyethylene (20) sorbitol monolaurate 20 kg, spirodiclofen 300 kg, fatty alcohol polyoxyethylene ether 50 kg, alkanes 30 kg polyglycol ether phosphate, 150 kg methyl abietate, 100 kg N-methylpyrrolidone, 30 kg isobutanol, 5 kg butyl hydroxyanisole, 2 kg xanthan gum, modified polysilicon 2 kg of oxane and 256 kg of water.

[0055] Preparation

[0056] 1. Abamectin Molecular Encapsulation

[0057] Mix β-cyclodextrin, ethanol, and 100 kg of water, heat to 55-60°C, and homogenize for 5 minutes at 8000 rpm. Under the stirring condition of 2000 rpm, add the mixed liquid of abamectin, isobutanol, polyoxyethylene (20) sorbitol monolaurate, keep stirring at 55-60°C for 2 hours, and cool down to room temperature naturally , to obtain the avermectin molecular capsule system;

[0058] 2. Water phase production

[0059] Xanthan gum is mixed with 141 kilograms of water to form an aqueous phase;

[0060] 3. Production of o...

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Abstract

The invention provides a preparation method of a pesticide emulsion, which comprises the steps of preparing an avermectin molecular capsule system; preparing a water phase; preparing an oil phase; adding the oil phase into the water phase, adding the avermectin molecular capsule system after shear emulsion and carrying out the shear emulsion again, wherein, the avermectin molecular capsule systemis prepared by evenly mixing a capsule wall material, a cosolvent and the first part of water under the heating condition, adding avermectin and a first emulsifier for evenly mixing and cooling to the room temperature, the capsule wall material is beta-cyclodextrin and / or gamma-cyclodextrin, the first emulsifier is one or a plurality of fatty alcohol polyoxyethylene ether, sorbitan monooleate andpolyoxyethylene sorbitan monolaurate. Avermectin molecules in the pesticide emulsion containing avermectin molecular capsules prepared by the method greatly enhance the resistance of the avermectin molecules to oxygen, light, heat, acid, alkali and the like and simultaneously have the effects of sustained-release and solubilization, thereby solving the problem that the avermectin is instable to the light and further prolonging the effective period for prevention and treatment of the avermectin.

Description

technical field [0001] The invention relates to a pesticide preparation and a preparation method thereof, in particular to an emulsion containing abamectin molecular capsules and spirodiclofen and a preparation method thereof. Background technique [0002] Spirodiclofen, also known as quaternary ketonate, the common name in English is Spirodiclofen. It belongs to a new type of tetronic acid acaricide. It inhibits the fat synthesis in the body of harmful mites, destroys the energy metabolism activities of mites, and finally kills harmful mites. It has a significant effect on mite eggs and good contact activity on nymphs, but its contact effect on female adult mites is not good, resulting in poor quick-acting performance. There are certain limitations in the use of spirodiclofen single agent when the population density is relatively high Sex, and long-term single use of spirodiclofen will lead to resistance of mites to spirodiclofen. [0003] Abamectin, the most popular and ...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/12A01N25/04A01N25/30A01P7/02A01P7/04
Inventor 王文忠曹明章张洪孔建王新军
Owner SHENZHEN NOPOSION AGROCHEM
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