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Anti-scouring and high-persistence pesticide microsphere and preparation method thereof

A pesticide microsphere, anti-scour technology, applied in the directions of microsphere preparation, botanical equipment and method, microcapsule preparation, etc., can solve problems such as increasing pesticide retention, achieve wide universality, avoid groundwater pollution, and facilitate pesticide utilization rate effect

Inactive Publication Date: 2019-11-29
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is worth noting that none of the above-mentioned existing studies have effectively utilized the micro / nanostructure of crop leaves. Therefore, it is of great significance to develop pesticide carriers that are regulated by topological morphology for the micro / nanostructure of crop leaves. Keep offering new ideas

Method used

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  • Anti-scouring and high-persistence pesticide microsphere and preparation method thereof
  • Anti-scouring and high-persistence pesticide microsphere and preparation method thereof
  • Anti-scouring and high-persistence pesticide microsphere and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 115

[0035] Example 1 15% Difenoconazole Pesticide Microspheres

[0036]

[0037] According to the formula of Example 1, 15% difenoconazole microspheres were prepared, wherein 1 micron polystyrene microspheres were prepared by conventional soap-free emulsion polymerization, and other agents were purchased from Aladdin Biochemical Technology Co., Ltd. The preparation scheme is as follows:

[0038] a. Add 0.25g of decane chloride and 0.15g of 1 micron polystyrene microspheres into 90ml of 0.25% (w / v) sodium lauryl sulfate solution for ultrasonic dispersion and continue magnetic stirring at 40°C for 16 hours (300-400 rpm);

[0039] b. Add 4.06g styrene, 2.73g stilbene, 0.12g azobisisobutyronitrile, 0.015g 9-vinyl anthracene, 0.45g difenoconazole to 30ml of 0.25% (w / v) decane Ultrasonic dispersion in dialkyl sodium sulfate solution to obtain oil-in-water emulsion. The resulting emulsion was added dropwise to the solution prepared in step a. After magnetic stirring at 40° C. for ...

Embodiment 2

[0057] Example 2 10% Difenoconazole Pesticide Microspheres

[0058]

[0059] According to the formula in Example 2, 10% difenoconazole pesticide microspheres were prepared, wherein 1 micron polystyrene microspheres were prepared by conventional soap-free emulsion polymerization, and other agents were purchased from Aladdin Biochemical Technology Co., Ltd. The preparation scheme is as follows:

[0060] a. Add 0.25g of decane chloride and 0.15g of 1 micron polystyrene microspheres into 90ml of 0.25% (w / v) sodium lauryl sulfate solution for ultrasonic dispersion and continue magnetic stirring at 40°C for 16 hours (300-400 rpm);

[0061] b. Add 4.06g styrene, 2.73g stilbene, 0.12g azobisisobutyronitrile, 0.015g 9-vinyl anthracene, 0.30g difenoconazole to 30ml of 0.25% (w / v) decanoline Ultrasonic dispersion in dialkyl sodium sulfate solution to obtain oil-in-water emulsion. The resulting emulsion was added dropwise to the solution prepared in step a. After magnetic stirring ...

Embodiment 3

[0069] Example 3 5% Difenoconazole Pesticide Microspheres

[0070]

[0071] According to the formula in Example 3, 5% difenoconazole pesticide microspheres were prepared, wherein 1 micron polystyrene microspheres were prepared by conventional soap-free emulsion polymerization, and other agents were purchased from Aladdin Biochemical Technology Co., Ltd. The preparation scheme is as follows:

[0072] a. Add 0.25g of decane chloride and 0.15g of 1 micron polystyrene microspheres into 90ml of 0.25% (w / v) sodium lauryl sulfate solution for ultrasonic dispersion and continue magnetic stirring at 40°C for 16 hours (300-400 rpm);

[0073] b. Add 4.06g styrene, 2.73g stilbene, 0.12g azobisisobutyronitrile, 0.015g 9-vinyl anthracene, 0.15g difenoconazole to 30ml of 0.25% (w / v) ten Ultrasonic dispersion in dialkyl sodium sulfate solution to obtain oil-in-water emulsion. The resulting emulsion was added dropwise to the solution prepared in step a. After magnetic stirring at 40° C....

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Abstract

The invention relates to an anti-scouring and high-persistence pesticide microsphere and a preparation method thereof, wherein the wax layer and the micro / nano composite structure on the plant leaf surface can be effectively utilized, and the retention and the rain wash resistance of pesticides on the plant leaf surface are improved through a novel reasonable scientific means so as to provide theimportant significance in the improvement of the utilization rate of pesticides and the improvement of the current serious pesticide loss situation. According to the invention, a series of pesticide microspheres with special topological morphology are fitted, and the topological complementary effect of the pesticide microspheres and the crop leaf surface micro-nano structure is utilized to enhancethe retention behavior of the pesticide on the plant leaf surface; the results of a series of characterization experiments on the morphology, the slow release property, the universality, the persistence and the erosion resistance of the pesticide microspheres prove that the pesticide microspheres can wrap pesticides, such that the persistence and the erosion resistance of pesticides on plant leafsurfaces can be remarkably enhanced by utilizing the complementary structure of the microspheres and the crop leaf surfaces; and the preparation method can be used for various insecticides, bactericides, foliar fertilizers and plant growth regulators, and has high universality.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to an anti-scouring and high-retention pesticide microsphere and a preparation method thereof. Background technique [0002] Pesticides are important means of agricultural production. They are widely used in the prevention and control of diseases, insects, and weeds in agricultural and forestry production activities. They play an important role in ensuring the safety of agricultural production, the quality and safety of agricultural products, and the safety of the ecological environment. In recent years, the occurrence and re-emergence of agricultural pests worldwide has led to an increase in the use of pesticides year by year. Although the use of pesticides has ensured food production and reduced economic losses to a certain extent, at the same time, the excessive use of pesticides has brought many new problems to human life, such as excessive pesticide residues, serious envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/10A01N43/653A01N25/22B01J13/02
CPCA01N25/10A01N25/22A01N43/653B01J13/02
Inventor 杜凤沛赵克非高玉霞
Owner CHINA AGRI UNIV
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