High-efficient agricultural chemicals suspension agent and disperser and method for preparing the same

Abstract

The present invention relates to a new-type high-effective agricultural pesticide suspension dispersing agent. It is characterized by that said dispersing agent is obtained by using (by mass%) 50-95% of unsaturated macromonomer with long-chain, 4-49% of unsaturated carboxylic acid or its derivative which can be ionized into carboxylic acid ions in water and 1-46% of other comonomer containing ethylenic bond through a certain copolymerization reaction. The described unsaturated macromonomer with long-chain is polyoxyethylene (methyl) acrylate compound or allyl alcohol polyoxyethylene oxyethylene ether. Besides, said invention also provides its preparation method.

Description

Technical field

[0001] The invention relates to a polymer dispersant and a preparation method thereof, in particular to a novel high-efficiency pesticide suspension polymer dispersant and a preparation method thereof. Background technique

[0002] Pesticides are an important means of production for mankind and play a pivotal role in the development of world agriculture. Except for a few high volatility and high solubility in water, pesticide technical materials can be used directly, and most of them must be processed into a certain dosage form before they can be used. In addition to pesticide active ingredients, other auxiliary substances in pesticide formulations are collectively referred to as adjuvants. Wettable powders, powders, emulsifiable concentrates and granules were collectively known as the four pesticide formulations in the past. Suspending concentrate is one of the new formulations that have developed vigorously in recent years. It has developed rapidly at home and a...