Microsphere suspended seed coating agent and preparation method thereof

A technology of suspended seed coating agent and microspheres, applied in the field of pesticides, can solve the problems of short duration of effect of conventional suspended seed coating agent, low utilization rate of active ingredients, single control effect, etc., and achieve stable drug effect and long duration of effect. , the effect of low cost of control

Inactive Publication Date: 2017-12-29
江西正邦作物保护股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a single control effect of a single pesticide active drug on underground pests or diseases, and the conventional suspension seed coating agent has short duration of action, low utilization rate of active ingredients, large environmental pollution, and high control cost. A method for preparing a microsphere suspension seed coating compounded with fungicides and insecticides, which has a broad control spectrum, stable drug effect, long-lasting effect, little environmental pollution, and low control cost, which meets the requirements of reducing the use of pesticides National policy

Method used

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  • Microsphere suspended seed coating agent and preparation method thereof
  • Microsphere suspended seed coating agent and preparation method thereof
  • Microsphere suspended seed coating agent and preparation method thereof

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preparation example Construction

[0036] The specific steps of the preparation method of flufenoxam-clothianidin microsphere suspension seed coating agent are as follows:

[0037](1) The preparation method of fenfluxam-clothianidin microspheres: according to the ratio of raw materials, respectively take a certain mass ratio of fenfluxam, clothianidin and polylactic acid, and use dichloromethane Dissolve completely, airtight container and be placed in ice-water bath (weigh in the dissolving process, add methylene chloride in time to replenish the weight of loss), inject the medicinal solution into a certain amount of emulsifier containing 0.05% Tween- In the 80 aqueous solution, emulsify with a high-speed stirrer at 3000-4500rpm for 30-40S to obtain the primary emulsion (add 0.1-0.3ml of silicone defoamer depending on the amount of foam in the primary emulsion), and quickly pour the resulting solution into a dispersing and stirring device In a beaker, keep the reaction temperature at 30-35°C, stir at 500-800rpm...

Embodiment 1

[0040] Example 1 (Sample 1): 2.5% Cycloxam-clothianidin Microsphere Suspension Seed Coating Agent (Fluorine:Thiazide=1:6)

[0041] Raw material formula: 13.75 grams of 18.22% fenfluxam-clothianidin microspheres (fluoro:thiazide = 1:6), 1.24 grams of dispersant SP-2836, 0.88 grams of sodium lauryl sulfate, 0.81 grams of magnesium aluminum silicate , xanthan gum 0.11 g, urea 3.11 g, silicone defoamer 0.22 g, preservative S-300.18 g, film-forming agent Km-M0 11.85 g, colorant Red-8110 3.12 g, water to 100 g.

Embodiment 2

[0042] Example 2 (sample 2): 10% fenfluxam-clothianidin microsphere suspension seed coating (fluorine: thiothiazine = 1:6)

[0043] Raw material formula: 18.22% fenfluxam-clothianidin microspheres (fluoro:thiazide = 1:6) 54.77 grams, polyoxyethylene polyoxypropylene block copolymer Atlox 49131.54 grams, NN-89060.61 grams, xanthan gum 0.06 grams, 3.02 grams of ethylene glycol, 0.22 grams of silicone defoamer, 0.22 grams of preservative S-300, 3.02 grams of film-forming agent Km-M01, 6.04 grams of coloring agent Red-8110, water to 100 grams.

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Abstract

The invention relates to a microsphere suspended seed coating agent and a preparation method thereof and belongs to the technical field of pesticide production. A bactericide and an insecticide are taken as core materials and a biodegradable material is taken as a coating pelletizing material; effective components and the pelletizing material are dissolved in a recyclable volatile organic solvent, an emulsification-solvent evaporation method is adopted, and sedaxane-clothianidin microspheres are prepared through suction filtration and extraction. The microsphere suspended seed coating agent with stable performance is prepared from pesticide microspheres, a dispersible wetting agent, a thickener, an anti-freezing agent, a defoaming agent, a preservative, a film-forming agent, a coloring agent and water which are weighed in the ratio of raw materials. The compound microsphere suspended seed coating agent has very good prevention and treatment functions on soil-borne diseases and soil pests, can control and prolong the release time of two effective components in the soil, has the characteristics of high effect, small environmental pollution, long lasting period, low prevention and treatment cost and the like and has significant economic and social benefits.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a microsphere suspension seed coating agent compounded with fungicides and insecticides and a preparation method thereof. Background technique [0002] Pesticides are important means of agricultural production and are widely used in the entire process of agricultural production. However, during the long-term use of pesticides, some pesticides have caused environmental damage due to the large amount of use in the environment but the extremely low use rate or the lack of scientific formulation technology. pollute. Due to the long development cycle of new pesticides, heavy workload, and large resources, the research on pesticide formulations has attracted more and more attention from the majority of new pesticide creators, and various types of seed coating formulations have emerged as the times require. [0003] In modern agricultural production, the use of seed coating agents to treat se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/26A01N43/56A01N51/00A01P3/00A01P7/04
CPCA01N25/04A01N25/26A01N43/56A01N51/00
Inventor 谢远芳翟文波魏方林周蕲程凡贵
Owner 江西正邦作物保护股份有限公司
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