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Fast disintegrating emamectin benzoate and hexaflumuron water dispersible granules and manufacturing method thereof

A manufacturing method and a technology of emamectin, applied in the field of pesticides, can solve the problems of slow disintegration rate, unsatisfactory suspension rate of active ingredients, poor suspension rate of active ingredients, etc., and achieve stable performance, shortened stirring time, and high suspension rate. Effect

Active Publication Date: 2010-07-14
HUIZHOU YINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 10.5% fast disintegrating emamectin emamectin salt and hexaflumuron water dispersible granules produced by the above two companies have a disintegration time of about 2 minutes or 1 minute, the disintegration speed is slow and the suspension rate of active ingredients is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] By weight percentage, get 2% emamectin benzoate and 30% hexaflumuron, 10% TERSPERSE2425 and Morwet D-425 mixture composition dispersant, 15% glucose and urea, 5% TERWET 1004 and add double helix cone Mix and pulverize in a mixer; add 20% kaolin as a filler and continue mixing; add water and wet the mixture to produce pesticide granules with a particle size of 0.8-2mm; dry the granules and sieve them to make finished pesticides .

[0037] The emamectin benzoate and hexaflumuron water dispersible granules produced by using this formula and process have the characteristics of rapid disintegration, and the detection indicators are as follows:

[0038] Test items

[0039] The method for measuring the disintegration time is as follows: add 0.5 g of pesticide sample particles at 25°C to a 100 ml stoppered measuring cylinder (inner height 22.5 cm, inner diameter 28 cm) containing 90 ml of distilled water, then clamp the middle of the measuring cylinder and plug the mo...

Embodiment 2

[0041]By weight percentage, get 1% emamectin benzoate and 20% hexaflumuron, 20% dispersant composed of TERSPERSE2425 and Morwet D-425 mixture, 10% glucose and urea, 5% TERWET 1004 and add double helix Conical mixer for mixing and crushing; add the remaining amount of cornstarch as a filler and continue mixing; add water to the mixture and make pesticide granules with a particle size of 0.8-2mm; dry the granules and sieve them to produce Finished pesticides.

[0042] The emamectin benzoate and hexaflumuron water dispersible granules produced by using this formula and process have the characteristics of rapid disintegration, and the detection indicators are as follows:

[0043] Test items

Embodiment 3

[0045] In percent by weight, get 0.5% emamectin benzoate and 10% hexaflumuron, 15% NNO and TERSPERSE 2700 mixture of dispersant, 10% glucose, 0.5% TERWET1004 into a double-helix conical mixer Mixing and pulverizing; adding the rest of diatomaceous earth as a filler to continue mixing; adding water and moistening the mixture to produce pesticide granules with a particle size of 0.8-2mm; drying the granules and sieving to make finished pesticides.

[0046] The emamectin benzoate and hexaflumuron water dispersible granules produced by using this formula and process have the characteristics of rapid disintegration, and the detection indicators are as follows:

[0047] Test items

[0048] Test items

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Abstract

The invention discloses fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule pesticide and a manufacturing method thereof. The emamectin benzoate and hexaflumuron water dispersible granule preparation comprises the following components in weight percentage: 0.1 to 50 percent of emamectin benzoate and hexaflumuron, 2 to 20 percent of dispersing agent, 5 to 15 percent of disintegrant, 0.1 to 5 percent of wetting agent and balance of filler. The manufacturing method comprises the following steps of: mixing the components except the stuffing in a ratio, crushing the mixed components, adding the balance of filler and mixing the crushed components and the filler; adding water to wet the mixture to manufacture the pesticide granules with a diameter of between 0.8 and 2 millimeters; and drying the granules and sieving the dried granules to obtain finished pesticide. The fast disintegrating emamectin benzoate and hexaflumuron water dispersible granules manufactured by the method of the invention have the advantage that the disintegrating speed is about 20 seconds, which is only 1 / 3 of the disintegrating speed of the pesticide product of the same kind available on the market at present, so the stirring time when the pesticide is used is greatly shortened and the working efficiency can be greatly improved for a user, particularly a farm and a unit using a large amount of the product.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to emamectin benzoate and hexaflumuron water-dispersible granules 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 do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/12A01N47/34A01N43/90A01P7/04A01P7/02
Inventor 谭钟扬王爱臣
Owner HUIZHOU YINNONG TECH