Special-purpose emulsifying thickener for paraquat preparation and application method thereof

Abstract

The invention discloses a special-purpose emulsifying thickener for paraquat preparation and an application method thereof. The invention has the technical scheme that a special-purpose emulsifying thickener for paraquat preparation is prepared by the following components in percentage by weight: 30%-40% of sodium alcohol ether sulphate, 1%-2% of dispersing agent, 10%-20% of CHSB, 2%-4% of alkyl polysaccharide glycoside (APG), 10%-15% of antifreeze and balance of water. Paraquat preparation with the thickness being 12%, 15% and 20% respectively can be prepared by adding the emulsifying thickener of the invention. The emulsifying thickener of the invention almost can adapt to all paraquat mother liquid and cannot obviously become thick at 0 DEG C and cannot obviously become thin at 40 DEG C. The emulsifying thickener can furthest keep the appearance wall cling performance of a product, and thus, the influence range of the system stable temperature is enlarged by one time; moreover, the influence on preparation products is increased by emulsifier, which ensures that the function of the emulsifier can be exerted to limit.

Description

technical field [0001] The invention relates to a pesticide adjuvant, in particular to an emulsifying thickener specially used for paraquat preparations, and also relates to an application method thereof, which belongs to the field of chemical industry. Background technique [0002] Paraquat is a quick-acting contact-killing quaternary ammonium salt herbicide. Its active ingredients are extremely destructive to chloroplast membranes, and can quickly stop photosynthesis and chlorophyll synthesis. The use of emulsifying thickener can reduce the surface tension of the solution, enhance the adhesion between the droplet and the liquid surface, promote the plant's absorption of the drug, and increase the conduction of the drug in the plant to improve the activity of the drug. The general paraquat emulsifying thickener currently used is mainly composed of non-ionic surfactants and additives, and its main disadvantages are: [0003] 1. Generally, paraquat emulsifying thickener need...

AI Technical Summary

Problems solved by technology

[0003] 1. Generally, paraquat emulsifying thickener needs to adjust the formula of emulsifier according to different manufacturers of paraquat mother liquor and different synthesis methods. It is necessary to prepare different emulsifiers in a targeted manner, so that paraquat products can be used in the selection of emulsifier varieties Shows variety, no versatility

[0004] 2. Generally, emulsifying thickeners only partially improve the use effect of preparation products, but cannot guarantee the appearance quality (viscosity, wall-hanging fluidity, color, transparency, etc.) of products under low-temperature and high-temperature storage conditions. The storage temperature is generally limited to 8-28°C. Below 8°C, it thickens obviously and is difficult to fill, but above 28°C, it almost loses its viscosity and wall-hanging property, which reduces the ability of the preparation to spread and adsorb weeds, and the stability of the system. The performance is limited between these two temperatures, which virtually prevents the emulsifier from exerting its best effect

[0005] 3. In actual production, when adding general emulsifiers, it is often necessary to add some additional thickeners when the thickening effect is not obvious. Adding thickeners not only significantly hinders the effect of emulsifiers, but also many thickeners It is difficult to add, and it is not easy to add. A little carelessness will cause undesired phenomena such as nozzle clogging during the use of the preparation product, which will affect the competitiveness of the preparation product in the market.

Images