Pesticide water-based low-volume agent and preparation method thereof

A water-based, low-volume technology, applied in the field of pesticides, can solve the problem that ultra-low-volume agents cannot be directly used in plant protection drones, and achieve the effects of reducing volatilization and drift effects, reducing processing costs, and reducing environmental risks.

Inactive Publication Date: 2018-02-02
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the ultra-low-capacity agent cannot be directly used in the operation of plant protection drones, and the traditional pesticide formulations are operated by drones

Method used

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  • Pesticide water-based low-volume agent and preparation method thereof
  • Pesticide water-based low-volume agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the preparation method of water-based low capacity agent

[0024] Dissolve the solid pesticide raw material with a small amount of solvent or melt it at high temperature, add surfactant and antifreeze agent, if it is a liquid raw drug, you can directly add surfactant and antifreeze agent, and use a high-speed shear emulsifier to fully mix the original drug to form an oil Phase; while mixing the oil phase, add the anti-volatile agent and surfactant into the water, heat it properly and disperse it in the water evenly through high-speed shearing to form a water phase; finally pour the oil phase into the water phase slowly , the water-based low-capacity agent can be obtained through high-speed shear emulsification.

Embodiment 2

[0025] Example 2: The effect of anti-volatile agent on the evaporation rate of water-based low-capacity agent

[0026] Prepare 12% beta-cypermethrin · emamectin benzoate hydration low-capacity agent according to the method of Example 1, wherein the consumption of anti-volatile agent is as follows, and the prepared product is measured for its volatilization rate, and the results are as follows.

[0027] Table Effect of anti-volatile agent on chemical volatilization rate

[0028]

Embodiment 3

[0029] Embodiment 3: 12% beta-cypermethrin · emamectin emamectin salt hydration low volume agent

[0030] Formula: Beta-cypermethrin 10.5%, emamectin benzoate 0.75%, xylene 10%, isophorone 3%; sodium dodecylbenzenesulfonate 3%, castor oil polyoxyethylene ether 3% %, fatty alcohol polyoxyethylene ether 0.08%, glycerol 2%, cetyl alcohol 1%, and deionized water to make up to 100%.

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Abstract

The invention discloses a water-based low-volume agent suitable for plant protection unmanned aerial vehicle operation. The water-based low-volume agent is composed of pesticide active pharmaceuticalingredient, solvent, surfactant, anti-freezing agent, anti-volatilization agent and water. The water-based low-volume agent is characterized in that oily solvents of conventional ultralow-volume agents are replaced by a water medium, so that environment risk is lowered; long-chain alcohol is used creatively to enable a monomolecular film to be formed on the surface of each fogdrop when leaving a spraying device, so that volatilization of water molecules in the fogdrops is inhibited, wandering of the fogdrops is reduced, and the fogdrops are enabled to accurately settle on the surfaces of cropsor prevention and control objects. Contact angles formed when the fogdrops wrapped by the long-chain alcohol monomolecular films contact with the surfaces of the crops or prevention and control objects are smaller, so that wettability and penetrability of the fogdrops to the surfaces of targets are enhanced, efficacy of active ingredients is brought into full play, and prevention and control effect of pesticide is improved. In addition, the water-based low-volume agent still can give play to the above advantages during conventional spraying operation.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a brand-new pesticide dosage form—a water-based low-capacity agent and a preparation method thereof. Background technique [0002] Plant protection drones have become the main means of pesticide use in agricultural production in my country. The popularization and application of drones in plant protection has led to the rapid development of plant protection mechanization. It is welcomed by farmers because of its labor-saving, labor-saving and high-efficiency characteristics. However, it is generally reported that the control effect of drone operations on diseases, insect pests and weeds is not ideal, and the analysis of the reasons has an important relationship with the lack of pesticide formulations that are compatible with drones. At present, the pesticide formulations used by drones are still pesticide formulations suitable for conventional spraying, such as wett...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/30A01N25/06A01N53/08A01N43/90A01P7/04A01P13/00A01P3/00A01P1/00
CPCA01N25/30A01N25/06A01N43/90A01N53/00
Inventor 苏建亚姜娜娜赵佩瑶
Owner NANJING AGRICULTURAL UNIVERSITY
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