A kind of pesticide water dispersible granule and preparation method thereof

A technology for dispersing granules and pesticide water, applied in the fields of botanical equipment and methods, fungicides, biocides, etc., can solve the problems of single formula and small application range of water-dispersible granules, and achieve good suspension, wide application range, The effect of enhancing biological activity

Active Publication Date: 2021-07-13
河北双吉化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a pesticide water-dispersible granule and its preparation method, which solves the problems of single formula and small scope of application of the water-dispersible granule in the prior art

Method used

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  • A kind of pesticide water dispersible granule and preparation method thereof
  • A kind of pesticide water dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A pesticide water-dispersible granule, consisting of the following components by weight:

[0033] 15 parts of pesticide active ingredients, 5 parts of dispersant, 2 parts of wetting agent, 5.5 parts of disintegrant, 1 part of binder, 2 parts of filler,

[0034] Among them, the dispersant is a mixture of poloxamer, chitosan and citric acid with a mass ratio of 4:1:1.5, the active ingredient of pesticide is cyanazifazole, and the wetting agent is polyethylene glycol, polyethyleneimine, poly The mass ratio of sodium acrylate is 2:1:1, the disintegrant is sodium tripolyphosphate, the binder is carboxymethyl cellulose, and the filler is bentonite.

[0035] Its preparation method comprises the following steps:

[0036] S1. According to the above formula, weigh each component for subsequent use;

[0037] S2. Mix the active ingredients of the pesticide, the dispersant, and the disintegrant evenly and then pulverize it to obtain a mixed powder;

[0038] S3. Dissolving the wet...

Embodiment 2

[0042] A pesticide water-dispersible granule, consisting of the following components by weight:

[0043] 70 parts of pesticide active ingredients, 10 parts of dispersant, 5 parts of wetting agent, 9 parts of disintegrant, 4 parts of binder, 10 parts of filler,

[0044] Among them, the dispersant is a mixture of poloxamer, chitosan and citric acid with a mass ratio of 4:1:1.5, the active ingredient of pesticide is cyanazifazole, and the wetting agent is polyethylene glycol, polyethyleneimine, poly The mass ratio of sodium acrylate is 2:1:1, the disintegrant is sodium tripolyphosphate, the binder is carboxymethyl cellulose, and the filler is bentonite.

[0045] The weight ratio of water to wetting agent in step S3 is 55:1, and the rest of the preparation steps are the same as in Example 1.

Embodiment 3

[0047] A pesticide water-dispersible granule, consisting of the following components by weight:

[0048] 45 parts of pesticide active ingredients, 8 parts of dispersant, 4 parts of wetting agent, 7 parts of disintegrant, 2.5 parts of binder, 6 parts of filler,

[0049] Among them, the dispersant is a mixture of poloxamer, chitosan and citric acid with a mass ratio of 4:1:1.5, the active ingredient of pesticide is cyanazifazole, and the wetting agent is polyethylene glycol, polyethyleneimine, poly The mass ratio of sodium acrylate is 2:1:1, the disintegrant is sodium tripolyphosphate, the binder is carboxymethyl cellulose, and the filler is bentonite.

[0050]The weight ratio of water to wetting agent in step S3 is 45:1, and the rest of the preparation steps are the same as in Example 1.

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Abstract

The invention belongs to the technical field of pesticide preparations, and provides a pesticide water-dispersible granule and a preparation method thereof. A pesticide water-dispersible granule, which is composed of the following components in parts by weight: 15-70 parts of pesticide active ingredients, 5-10 parts of dispersant, 2-5 parts of wetting agent, 5.5-9 parts of disintegrating agent, binder 1-4 parts of agent, 2-10 parts of filler, dispersant is a mixture of poloxamer, chitosan and citric acid with a mass ratio of 4:1:1.5. In the preparation method, the active ingredients of the pesticide, the dispersant, and the disintegrating agent are mixed evenly and then pulverized, then mixed with the wetting agent and binder dissolved in water to obtain a suspension, the suspension is spray-dried, mixed with the filler, squeezed Pressing granulation, drying and other steps. Through the above technical scheme, the problems of single formulation and small application range of the water-dispersible granules in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparations, and relates to a pesticide water-dispersible granule and a preparation method thereof. Background technique [0002] Water-dispersible granules are a new environmentally friendly formulation of pesticides developed in the 1980s, developed on the basis of wettable powders and suspension concentrates. The formulation reduces environmental pollution during processing and use, and is convenient for measurement, packaging and transportation, reducing the cost of farmers' use, which is a major trend in the development of pesticides at present. [0003] At present, water-dispersible granules are mainly composed of raw materials, dispersants, wetting agents, disintegrants, binders, fillers and other components. The selection of additives affects the wettability and disintegration of water-dispersible granules. The key factors of suspension and suspension, which in turn affect the retentio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/14A01N43/50A01N47/14A01N37/46A01N47/34A01N47/18A01N37/34A01P3/00
CPCA01N25/14A01N37/34A01N37/46A01N43/50A01N47/14A01N47/18A01N47/34
Inventor 郑晓成徐菊
Owner 河北双吉化工有限公司
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