Plant oil emulsifying emulsifier composition and preparation method thereof

Abstract

The invention discloses a plant oil emulsifying emulsifier composition. In percent by weight, the plant oil emulsifying emulsifier composition comprises 5-25% of fatty acid ester or alkyl benzenesulfonic acid and 75-95% of maleic anhydride modified plant oil or a reaction product of the maleic anhydride modified plant oil and polyether. The invention further discloses a preparation method of the plant oil emulsifying emulsifier composition. The plant oil emulsifying emulsifier composition has a good plant oil emulsifying effect, and obtained self-emulsified plant oil has long-term storage stability and excellent emulsifying performance; meanwhile, as a tank mixing aid, the self-emulsified plant oil formed by mixing the plant oil emulsifying emulsifier composition and the plant oil can increase the fogdrop particle size, reduce spray drift, dissolve wax layers on the surfaces of a target and a target crop, improve the penetration rate of a pesticide on the target or a target plant, enhance the bactericidal effect and increase the cation density, and facilitates deposition of the pesticide on the target.

Description

technical field [0001] The invention relates to the technical field of pesticide adjuvants, in particular to an emulsified vegetable oil emulsifier composition and a preparation method thereof. Background technique [0002] The improvement of the effective utilization rate of pesticides mainly includes three aspects: (1) the preparation of pesticide preparations and pesticide liquids with a high suspension rate, and the delivery efficiency of this part can reach 95%; , deposited on the surface of the target, and this part of the drug solution transfers up to 38.8%; (3) the drug solution on the target surface penetrates or spreads, or conducts into the plant, and reaches the target to play a real drug effect. The effective rate of this part of the delivery is only 0.1-0.24%. [0003] At present, the vegetable oil synergist is a synergist with the highest development and utilization rate. It is composed of vegetable oil and surfactant, which can improve the wetting and adhesi...

AI Technical Summary

Problems solved by technology

[0004] However, when traditional vegetable oils such as soybean oil, rapeseed oil, palm oil, and castor oil are emulsified, the amount of emulsifier added is relatively high, and the main component of the emulsifier is nonylphenol polyoxyethylene ether (NP-4, NP-7, NP- 10), castor oil polyoxyethylene ether (EL-5, EL-12, EL-20, etc.), and add a small amount of calcium dodecylbenzenesulfonate

Nonylphenol polyoxyethylene ether is harmful to the male reproductive system and is gradually included in the prohibited list; while adding castor oil polyoxyethylene ether with a polymerization degree greater than 20 to the emulsifier, or calcium dodecylbenzenesulfonate exceeding 10%, It makes the compatibility between the emulsifier and vegetable oil poor, and it is prone to turbidity.

Images