Dinotefuran aqueous suspension agent and its preparation method

Abstract

The invention discloses a dinotefuran aqueous suspension agent, which is made from the following components of: by weight, 5-40% of a dinotefuran original drug, 0-6% of an auxiliary suspension agent, 2-20% of a surfactant, 0-1% of a thickening agent, 0-1% of an antifoaming agent, 0-1% of an antiseptic, 0.5-5% of an antifreezing agent and 100% of water, wherein the auxiliary suspension agent is white carbon black, bentonite, magnesium aluminum silicate or kaolin; the surfactant is the random combination selected from five components consisting of NP, No. 500, polycarboxylate, TWEEN, 600P and Polyoxyethylene nonyl phenyl ether phosphate salt; the thickening agent is xanthan gum, carboxymethyl cellulose, polyacrylamide or polyvinyl alcohol; the antifoaming agent is an organic silicon antifoaming agent, tributyl phosphate or butanols; and the antifreezing agent is glycol, glycerin, urea, isopropanol or propylene glycol. The preparation provided by the invention accords with the high content and environmental-friendly preparation processing trend, is a biorational pesticide, and has an extensive application prospect.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a dinotefuran aqueous suspension (SC) and a preparation method thereof. Background technique [0002] Dinotefuran is a third-generation neonicotinoid insecticide developed by Mitsui Chemicals. The agent has a wide insecticidal spectrum, excellent systemic penetration, and shows high insecticidal activity at a very low dose. The drug has a wide insecticidal spectrum and can prevent various pests such as Hemiptera, Lepidoptera, Diptera, Orthoptera, Hymenoptera, and Beetles. The agent is very safe to mammals, birds and aquatic organisms, and has no harm to crops. It can be used for many crops such as rice, fruit trees and vegetables. [0003] Modern pesticides are changing rapidly and are developing in the direction of green environmental protection. Suspending concentrate (SC) is one of them. Pesticide suspending concentrate is a formulation with a short history of development...

AI Technical Summary

Problems solved by technology

Mainly in terms of stability over time, serious stratification often occurs, and even pastes and solidifies, making it impossible to use and recycle during processing

Dinotefuran is generally made into 1%~20% water-soluble granules. Because of its high solubility in water, it is difficult to make a water-suspending agent, and it is prone to overall creaming and cannot be used.

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