A kind of coating type aqueous suspension agent and preparation method thereof

Abstract

The invention relates to the technical field of pesticide production, in particular to a coated aqueous suspension agent and a preparation method thereof. The coating-type aqueous suspension includes the following raw materials in parts by mass: 5-20 parts of pesticide original drug, 1-20 parts of cationic dispersing wetting agent, 0.5-2 parts of tetraethyl orthosilicate, and 1-20 parts of antifreeze agent. 5 parts, 0.1-0.5 parts of defoamer, 0.1-0.5 parts of viscosity modifier, 0.1-2 parts of stabilizer and 100-120 parts of deionized water. The coated aqueous suspension prepared by the invention can reduce the decomposition and volatilization of the pesticide, conceal the original peculiar smell of the pesticide, and is friendly to organisms and the environment. The original drug is stably dispersed in water for a long time, and is not easily affected by the environment and has the phenomenon of layering and bottoming. The suspending agent product prepared by the invention has excellent performance, low investment in production equipment, simple production process, stable product quality, is suitable for large-scale production, and has high social value.

Description

technical field [0001] The invention relates to the technical field of pesticide production, in particular to a coated aqueous suspension agent and a preparation method thereof. Background technique [0002] Pesticides are unfavorable to the environment. Some pesticides are volatile or have peculiar smell, which will have adverse effects on organisms and the environment. Some pesticides are even irritating to humans and animals. For example, pymetrozine is harmful to aquatic organisms, and it will also be harmful to the water environment. It will cause long-term adverse effects. A small amount of contact with tactmethrin pesticides will cause skin irritation, and a large amount of exposure will cause headache, dizziness, nausea, vomiting, trembling of hands, convulsions or convulsions, coma and even shock. [0003] Pesticides are not easy to be stored for a long time. Traditional water-based suspension pesticides are generally composed of pesticide technical materials, dispe...

AI Technical Summary

Problems solved by technology

[0002] Pesticides are not good for the environment. Some pesticides are volatile or have peculiar smell, which will have adverse effects on organisms and the environment. Some pesticide raw materials are even irritating to humans and animals. Produce long-term adverse effects. A small amount of contact with palpithrin pesticides can cause skin stinging, and a large amount of contact can cause headache, dizziness, nausea, vomiting, trembling hands, general convulsions or convulsions, coma or even shock

[0003] Pesticides are not easy to store for a long time. Traditional water-based suspension pesticides are generally composed of pesticides, dispersing wetting agents, antifreeze, thickeners and water. The molecules of the original drug and the dispersing wetting agents are mainly attracted by van der Waals force , and this kind of intermolecular force is relatively weak, and it is easily affected by the environment and additives such as antifreeze and thickeners. The phenomenon of layers and bottoms, thus affecting its later use

[0004] In order to solve the current problems, a new type of water-based suspension pesticide is developed, which is friendly to biology and the environment. While reducing the irritation of pesticides to humans and animals, it can also make the original pesticide dispersed in water stably for a long time, and is less susceptible to environmental changes. The phenomenon of layering and bottoming is very important for aqueous suspension pesticides

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