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Pesticide emulsion water, preparation method and applications thereof

A water emulsion and pesticide technology, applied in the field of pesticides, can solve the problems of inability to realize industrial production, the proportion of oil phase cannot be too high, and the shearing time is long, and achieves excellent efficacy, narrow particle size distribution, and increase the effect of content.

Inactive Publication Date: 2020-01-07
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, it takes at least 30 minutes to prepare the pesticide water emulsion using high-speed shearing due to the long shearing time.
A large amount of heat will be generated during the shearing process, so that the proportion of the oil phase in the oil-in-water pesticide water emulsion should not be too high, and the weight ratio of the oil phase and the water phase should generally not exceed 50%, otherwise industrial production cannot be realized

Method used

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  • Pesticide emulsion water, preparation method and applications thereof
  • Pesticide emulsion water, preparation method and applications thereof
  • Pesticide emulsion water, preparation method and applications thereof

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preparation example Construction

[0081] The present invention also provides a method for preparing the pesticide aqueous emulsion, the preparation method comprising:

[0082] (1) Prepare dispersed oil phase and continuous water phase

[0083] Preparation of dispersed oil phase: mixing active ingredients, one or more agriculturally acceptable hydrophobic adjuvants, and optionally one or more hydrophobic liquid carriers;

[0084] Preparation of continuous water phase: adding one or more agriculturally acceptable hydrophilic additives or optional one or more liquid carriers into deionized water and stirring evenly to form a continuous water phase;

[0085] (2) Treat the above-mentioned dispersed oil phase and continuous water phase in a micro-mixing system to obtain an oil-in-water emulsion.

[0086] Preferably, a method for preparing the pesticide aqueous emulsion provided by the invention comprises:

[0087] (1) Preheating the components of the dispersed oil phase and the continuous water phase;

[0088] (2...

Embodiment 1

[0127]

Embodiment 2

[0129]

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Abstract

The invention relates to pesticide emulsion water, a preparation method and applications thereof, wherein the pesticide emulsion water comprises a dispersed oil phase and a continuous aqueous phase according to a weight ratio of 50:50-74:26. The preparation method comprises: (1) preparing a dispersed oil phase and a continuous water phase; and (2) treating the dispersed oil phase and the continuous water phase in a micro-reaction system to obtain the oil-in-water emulsion water. According to the invention, the pesticide emulsion water with good stability is prepared by adopting the micro-reaction technology and using a small amount of the emulsifier and the auxiliary agent.

Description

Technical field [0001] The present invention relates to the field of pesticides, and in particular to a pesticide aqueous emulsion and its preparation method and use. Background technique [0002] Emulsion is a liquid-liquid dispersion system, that is, one liquid is dispersed in the form of tiny droplets in another liquid that is immiscible with it. According to the different internal and external phases, it can be divided into oil-in-water (O / W) type, For water-in-oil (W / O) and multiple emulsions, appropriate emulsifiers need to be added during the preparation process to maintain the stability of the system. Emulsifiers are usually composed of surfactants, polymers and hydrophilic solid particles. They form an interfacial film by adsorbing at the oil-water interface, reducing interfacial tension, generating electrostatic repulsion and steric hindrance to maintain the stability of the emulsion. The stability of the emulsion is easily affected by the preparation method, emul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/28A01N57/16A01N47/24A01N37/52A01N37/22A01N43/40A01P3/00A01P7/04A01P13/00B01J19/00B01J19/10B01F13/00
CPCA01N25/04A01N43/28A01N57/16A01N47/24A01N37/52A01N37/22A01N43/40B01J19/0093B01J19/10B01F33/30B01F2101/48
Inventor 罗昌炎詹姆斯.T.布里斯托
Owner JIANGSU ROTAM CHEM