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Water-based preparation containing lice mites urea and preparation method thereof

A lufenuron and water-based technology, which is applied in the field of pesticide preparations and its preparation, can solve the problems of complex production process, large equipment investment, and long production time, and achieve the effects of simple production process, simple production equipment, and short production time

Active Publication Date: 2010-02-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the particle size of its oil beads is more than 500 nanometers, the system is a thermodynamically unstable system. During production, it is necessary to increase external energy and perform high-speed shear dispersion. The output is small (generally less than 1 ton) and the time is long (more than 30 minutes). After the dispersion is completed, thickeners and antifreeze agents need to be added as stabilizers for the system. Due to high-speed dispersion and shearing during production, the system has more foam, and defoamers need to be added to defoam. The production process is more complicated, the output is low, and the production time is long. , high energy consumption and large investment in equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 20kg of lufenuron and 10kg of abamectin, dissolve them with 60kg of trimethylbenzene and 5kg of pyrrolidone, then add 25kg of EO / PO block polyether phosphate and 8kg of ammonium dodecylbenzenesulfonate, and add them to 880kg of water. Disperse for 10 minutes under the action of 20KHZ ultrasonic waves to obtain 3% Avi Lufenuron aqueous preparation. The appearance of the obtained preparation is translucent, the particle size distribution is 50-250 nanometers, and the appearance is stable after being stored at room temperature for two years. After measurement, the relative degradation rate of the abamectin content is 1.61%, and the relative degradation rate of the lufenuron content is 0.83%. All conform to the relevant national regulations; after freezing at -18°C for 7 days and then thawing at room temperature, the performance of the preparation is normal after repeated 3 times.

Embodiment 2

[0037] Take 100kg of lufenuron and 50kg of abamectin, dissolve them with 200kg of tetramethylbenzene and 30kg of pyrrolidone, then add 20kg of EO / PO block polyether, 100kg of EO / PO block polyether phosphate, dodecylbenzenesulfonate Add 30 kg of ammonium acid to 470 kg of water, and disperse for 8 minutes under the action of 28KHZ ultrasonic waves to obtain a 15% aqueous preparation of abamectin lufenuron. The appearance of the obtained preparation is translucent, the particle size distribution is 50-250 nanometers, and the appearance is stable after two years of storage at room temperature. After measurement, the relative degradation rate of the abamectin content is 2.35%, and the relative degradation rate of the lufenuron content is 0.76%. All of them conformed to the relevant national regulations; after being frozen at -18°C for 7 days and then thawed at room temperature, the performance of the preparation was normal after repeated 3 times.

Embodiment 3

[0039] Get lufenuron 120kg, avermectin 80kg after dissolving with tetramethylbenzene 170kg, pyrrolidone 80kg, then add EO / PO block polyether phosphate 100kg, ammonium dodecylbenzenesulfonate 35kg, join in 415kg water, in Disperse under the action of 40KHZ ultrasonic waves for 5 minutes to obtain 20% abamectin·lufenuron water-based preparation. The appearance of the obtained preparation is translucent, the particle size distribution is 40-350 nanometers, and the appearance is stable after two years of storage at room temperature. It is determined that the relative degradation rate of the avermectin content is 2.70%, and the relative degradation rate of the lufenuron content is 1.33%. All of them conformed to the relevant national regulations; after being frozen at -18°C for 7 days and then thawed at room temperature, the performance of the preparation was normal after repeated 3 times.

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PUM

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Abstract

The invention provides a water-based preparation containing lice mites urea and a preparation method thereof. The preparation comprises the following agricultural effective components in percentage bymass: 1-15 lice mites urea and 1-10 abamectin or emamectin benzoate as well as latent solvent, solvent and a surface active agent. in the preparation, an oil phase is added to a water phase and the oil phase and water phase are dispersed under the action of ultrasonication. Compared with other preparation formulations containing lice mites urea in the prior art, the water-based preparation has simple production equipment, short preparation time, smaller grain diameters between a traditional microemulsion and an aqueous emulsion and thermodynamic stability without an ntifreeze and a thickeningagent, reduces the use of a great amount of the organic solvent and the surface active agent and accords with the requirement for environmental protection.

Description

technical field [0001] The invention relates to a pesticide preparation and a preparation method thereof, in particular to an aqueous preparation containing lufenuron compounded with abamectin or emamectin benzoate and a preparation method thereof. Background technique [0002] Traditional pesticide dosage forms include emulsifiable concentrate, wettable powder and powder, but there are certain shortcomings. The emulsifiable concentrate product needs to use a large amount of organic solvents, which has problems such as flammability, explosion and environmental safety; wettable powder and powder are in the process of production and use. It is easy to produce a large amount of dust, which affects the ecological environment and people's health. In recent years, with the increasing awareness of environmental protection and the increasingly stringent requirements for environmental protection, coupled with the rise in global oil prices, emulsifiable concentrate preparations using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N47/34A01N43/90A01P7/04A01P7/02
Inventor 李谱超张建明曹明章王文忠孔建
Owner SHENZHEN NOPOSION AGROCHEM
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