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Pesticide sustained release granule containing thiamethoxam and preparation method thereof

A technology of sustained-release granules and thiamethoxam, which is applied in the field of pesticides, can solve the problems of expensive capsule wall, high cost, and high equipment cost, and achieve the effects of short duration of drug effect, uniform film thickness, and prolonged sustained-release period

Active Publication Date: 2015-08-19
青岛海纳生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the current slow-release pesticides is to coat the active ingredients of the pesticide with a resin material to form a microcapsule structure, but the capsule wall is expensive, the thickness is not easy to control, and the process is complicated, resulting in high pesticide costs and unstable efficacy.
The other is to granulate the active ingredients and fillers and then coat them with a slow-release film, but this method requires high equipment costs, large energy consumption, and high costs

Method used

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  • Pesticide sustained release granule containing thiamethoxam and preparation method thereof
  • Pesticide sustained release granule containing thiamethoxam and preparation method thereof
  • Pesticide sustained release granule containing thiamethoxam and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A pesticide slow-release granule containing thiamethoxam, comprising the following raw materials in parts by weight: 0.2 parts of thiamethoxam, 5 parts of anhydrous calcium sulfate, 5 parts of kaolin, 0.3 parts of film material, white carbon 0.1 part of black and 0.1 part of coloring agent; the film material, according to mass fraction, includes the following components: 0.1% of displacing agent, 5% of curing agent, 0.01% of filtering agent and 0.2% of passivation product, and the balance is alternating Linking agent, described solidifying agent is polyethylene paraffin, and molecular weight is 1000, and described filtration film agent is polyvinyl butyral, and described cross-linking agent is glutaraldehyde, and described passivation product is the amino acid chelation of magnesium things. The cross-linking agent balances the force between the curing agent, the displacing agent and the filter membrane agent, so that the force is moderate and adjustable to form a layer ...

Embodiment 2

[0043] A pesticide slow-release granule containing thiamethoxam, comprising the following raw materials in parts by weight: 4 parts by weight of thiamethoxam, 70 parts of anhydrous calcium sulfate, 70 parts of kaolin, 18 parts of other carriers, film material 4 parts, 1.2 parts of white carbon black and 3 parts of coloring agent; The film material, according to mass fraction, includes the following components: 7% of displacing agent, 30% of curing agent, 1.3% of filter membrane agent and 2.5% of passivation , the balance is a cross-linking agent, the curing agent is polyether urethane, molecular weight is 3000, the cross-linking agent is formaldehyde, and the permeable membrane agent is vinylpyrrolidone-chitosan cross-linked polymerization The passivation product is an amino acid chelate of magnesium. The cross-linking agent balances the force between the curing agent, the displacing agent and the filter membrane agent, so that the force is moderate and adjustable to form a la...

Embodiment 3

[0057] A pesticide slow-release granule containing thiamethoxam, comprising the following raw materials in parts by weight: 1 part of thiamethoxam, 45 parts of anhydrous calcium sulfate, 35 parts of kaolin, 5 parts of other carriers, and film materials 1.5 parts, 0.9 parts of white carbon black and 1.5 parts of colorant; the film material, in terms of mass fraction, includes the following components: 5% of displacing agent, 50% of curing agent, 0.8% of filtering agent and 2% of passivation , the balance is a cross-linking agent, the curing agent is chlorinated paraffin, the molecular weight is 1300, the filter membrane agent is sodium carboxymethyl cellulose, the cross-linking agent is titanium dioxide, and the passivation is magnesium. Amino acid chelate. The other carriers are bentonite, hydrous calcium sulfate powder, nitrogen fertilizer, ammonium phosphate, distiller's grains, and the corresponding mass ratio is 3:1:1:10. The cross-linking agent balances the force between...

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Abstract

The invention discloses a pesticide sustained release granule containing thiamethoxam and a preparation method thereof, wherein the pesticide sustained release granule is prepared from the following raw materials in parts by weight: thiamethoxam, anhydrous calcium sulfate, kaolin, other carriers, membrane material and white carbon black, and the membrane material is calculated in parts by mass and comprises the following components: 0.1-15 percent of displacer, 5-60 percent of curing agent, 0.01-5 percent of membrane filter agent, 0.2-5 percent of passivation material, and the balance of cross-linking agent, wherein the structure of displacer is similar with that of the thiamethoxam, and the pesticide sustained release granule is sequentially prepared according to the following steps of mixing, prilling, spraying membrane firstly, spraying membrane secondly, protecting granule, toning, checking and packaging, and the effective constituent of the pesticide sustained release granule is similar with that of the displacer, gradually penetrates outward, and the sustained release period is long, the pesticide effect is stable, the preparation method is simple and the cost is low.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a pesticide slow-release granule containing thiamethoxam and a preparation method thereof. Background technique [0002] Thiamethoxam is a second-generation neonicotinoid high-efficiency and low-toxicity insecticide with a new structure. It has stomach toxicity, contact killing and systemic activity against pests. It is used for foliar spraying and soil irrigation. After spraying, it is quickly systemically absorbed by crops and transmitted to all parts of the plant. It has good control effect on piercing-sucking pests such as aphids, planthoppers, leafhoppers, and whiteflies. [0003] Slow-release pesticides can gradually release active ingredients over time, thereby reducing labor costs, saving time, and reducing the amount of pesticides used, and are favored by the market. One of the current slow-release pesticides is to coat the active ingredients of the pesticide with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N25/12A01N25/10A01P7/04C05G3/02C05G3/60
Inventor 谭晓辉王德富王利
Owner 青岛海纳生物科技有限公司
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