Emamectin benzoate water dispersible granule capable of fast disintegrating and preparation method thereof

Abstract

The invention discloses an emamectin benzoate water dispersible granule pesticide and a preparation method thereof. The granule comprises 0.1-50% of emamectin benzoate, an active ingredient of the pesticide, 2-20% of dispersants, 5-15% of disintegration assistants, 0.1-5% of wetting agents and the balance fillers by weight. The preparation method is characterized by proportionally mixing the above ingredients except the fillers, grinding the mixture and then adding the fillers to be mixed; adding water to the mixture to prepare the pesticide granule with size of 0.8-2mm; and drying the granule and preparing the finished pesticide after sieving. The granule pesticide prepared by the method has disintegration speed of about 20s which is equivalent to 1 / 3 of that of the same kind of pesticide products commonly sold in the current markets, greatly shortens the stirring time during use and can obviously improve the working efficiency for the users, especially the farms and the units which use the product on a large scale.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a emamectin emamectin salt water dispersible granule and a manufacturing method thereof. Background technique [0002] Water-dispersible granules refer to the granules used after disintegrating and dispersing in water. It was initially successfully developed by the Swiss Ciba-Geigy company in the 1980s, and the sales volume increased year by year after the mid-1980s. The dosage form looks like granules, and the active ingredient is generally 60-90%. After it is put into water and stirred, it can be uniformly dissolved and dispersed in water like a wettable powder. Therefore, it has the characteristics of wettable powder and emulsion. Based on the analysis of the physical properties of the dosage form, water-dispersible granules are a new dosage form with the most superiority and competitiveness among the current pesticide dosage forms. The main components of this dosage form ...

AI Technical Summary

Problems solved by technology

However, the water-dispersible granule pesticide products produced by the above two companies still have the disadvantages of slow disintegration speed and unsatisfactory suspension rate of active ingredients.

For example: the disintegration time of the 5% emamectin emamectin salt water dispersible granules produced by the above two companies is about 1 minute, the disintegration speed is slow and the suspension rate of active ingredients is not good