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Compound water dispersible granules and preparation method thereof

A technology for dispersing granules and distributing water, which is applied in the field of pesticides and can solve the problems of not meeting the performance requirements of water-dispersible granules, short molecular chains, and easy aggregation.

Inactive Publication Date: 2020-11-17
ZHENGZHOU NONGDA BIOCHEM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, too large a molecular weight may reduce the adsorption density of the dispersant on the surface of the active ingredient particles, thereby reducing the suspension rate
However, as people's requirements for the environment are getting higher and higher, and the active ingredients of the preparations are increasing, the commonly used low-molecular-weight dispersants can no longer meet the performance requirements of water-dispersible granules. Special-purpose dispersants, high-molecular-weight dispersants, Dispersants with good environmental safety are called the main trends in today's applications
And the ratio of gibberellic acid and brassinolide provided by this patent document, the molecular weight, molecular chain and aggregation degree of its active ingredients are determined by gibberellic acid, wherein the molecular weight of gibberellic acid is relatively small, and the molecular chain is shorter And it is easy to aggregate, and then only under the condition of low molecular weight sodium lignosulfonate and low molecular weight sodium lignosulfonate, relatively good suspension rate and dispersibility may be obtained, while under high molecular weight sodium lignosulfonate, Its dispersibility and suspension rate are far below the requirements for use

Method used

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  • Compound water dispersible granules and preparation method thereof
  • Compound water dispersible granules and preparation method thereof
  • Compound water dispersible granules and preparation method thereof

Examples

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Embodiment 1

[0040] This embodiment discloses a compound water-dispersible granule. In the case of no conflict or contradiction, the whole and / or part of the content of the preferred implementations of other embodiments may serve as supplements to this embodiment.

[0041] Preferably, a composite water-dispersible granule includes at least raw materials and auxiliary agents. Raw materials include gibberellic acid GA 4+7 , 28-epihobrasinolide. Auxiliaries include dispersants, wetting agents and binders. Preferably, the wetting agent may be silicon steel scale. The binder may be sodium carboxymethylcellulose.

[0042] Preferably, in gibberellic acid GA 4+7 In case of mass less than 28-epihobrasinolide, gibberellic acid GA 4+7 The mass ratio of the 28-epihobrasinolide is in the range of 1:12.5 to 1:50. The additives include at least one of silicon steel scale, sodium carboxymethylcellulose, sodium methylnaphthalenesulfonate formaldehyde condensate, sodium methylene dinaphthalenesulfona...

Embodiment approach

[0044] According to a preferred embodiment, the quality of 28-epihobrasinolide is less than that of gibberellic acid GA 4+7 In the case of gibberellic acid GA 4+7 The mass ratio of the 28-epihobrasinolide is in the range of 1:1 to 200:1. The additives include at least one of silicon steel scale, sodium carboxymethylcellulose, sodium methylnaphthalenesulfonate formaldehyde condensate, sodium methylene dinaphthalenesulfonate, and sodium ligninsulfonate. Gibberellic acid GA 4+7 , The mass ratio of the mass of 28-epihobrasinolide to the auxiliary agent is 1:10 to 1:20. gibberellic acid GA 4+7 Gibberellic acid GA in mass ratio with 28-epihobrasinolide 4+7 The ratio increases in the case of increasing gibberellic acid GA 4+7 , 28-The ratio of the auxiliary agent in the mass ratio of the high brassinolide and the auxiliary agent. Preferably, the mass of 28-epihobrasinolide is less than gibberellic acid GA 4+7 In some cases, the content of the active ingredient is not high, and...

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Abstract

The invention relates to compound water dispersible granules and a preparation method thereof. The compound water dispersible granules at least comprise gibberellic acid GA<4+7>, 28-epihomobrassinolide and an auxiliary agent, wherein under the condition that the mass of the gibberellic acid GA<4+7> is smaller than that of the 28-epihomobrassinolide, the mass ratio of the gibberellic acid GA<4+7> to the 28-epihomobrassinolide is 1: 12.5 to 1:50; the auxiliary agent comprises at least one of a sodium methylnaphthalene sulfonate-formaldehyde condensate, sodium methylene dinaphthalenesulfonate andsodium lignin sulfonate; the ratio of the mass of the gibberellic acid GA<4+7> and the 28-epihomobrassinolide to the mass of the auxiliary agent is 1: 2 to 1: 10; the ratio of the auxiliary agent inthe ratio of the mass of the gibberellic acid GA<4+7< and the 28-epihomobrassinolide to that of the auxiliary agent increases along with increase of the ratio of the gibberellic acid GA<4+7> to the 28-epihomobrassinolide.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a compound water-dispersible granule and a preparation method thereof. Background technique [0002] Gibberellic acid GA 4+7 Gibberellin plant growth regulator, is GA 4 and GA 7 A mixture of its physiological functions for plants with GA 3 different. Gibberellic acid GA 4+7 It plays a prominent role in promoting fruit setting, fruit coloring, fruit shape, thick peel and prolonging the shelf life. gibberellic acid GA 3 Crops are prominent in vegetative growth such as breaking dormancy, promoting seed germination, and promoting flowering. [0003] Brassinolide, known as the sixth largest plant hormone in the world, is a broad-spectrum and efficient plant growth regulator, which was first discovered by American agricultural scientists in 1970. Unlike the single function of the known five major hormones (auuxin, gibberellin, cytokinin, abscisic acid, ethylene), brassinolid...

Claims

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Application Information

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IPC IPC(8): A01N43/22A01N43/12A01N45/00A01N25/14A01P21/00
CPCA01N25/14A01N43/12A01N43/22A01N45/00
Inventor 朱朝印张建包来仓王建伟方业忠张一折乔贞贞
Owner ZHENGZHOU NONGDA BIOCHEM PROD
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