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Prothioconazole microcapsule suspending agent as well as preparation method and application thereof

A microcapsule suspension, prothioconazole technology, applied in the direction of botany equipment and methods, applications, fungicides, etc., can solve the problems of harming non-target crops, increasing drug costs, resistance development, etc., to reduce pesticide application number of times, good storage stability, and the effect of reducing control costs

Pending Publication Date: 2022-06-07
宁夏苏融达化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In agricultural production, the prevention and control of wheat diseases is very important. Wheat head blight is also one of the main diseases of wheat. However, in the actual application of pesticides, there are often unscientific uses such as excessive spraying and liquid drift. Lead to the development of resistance, increase the cost of medication, harm non-target crops and other problems

Method used

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  • Prothioconazole microcapsule suspending agent as well as preparation method and application thereof
  • Prothioconazole microcapsule suspending agent as well as preparation method and application thereof
  • Prothioconazole microcapsule suspending agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: 1% prothioconazole microcapsule suspension

[0082] The preparation method of 1% prothioconazole microcapsule suspension is as follows:

[0083] Step 1: Dissolve 1.03g of 98% prothioconazole in 5g of Genagen 4296, add 4g of Nongyu 1602 and 1g of PAPI, mix and stir to form an oil phase;

[0084] Step 2: Add 0.1g of silicone antifoaming agent to 81.02g of deionized water and mix evenly, as water phase;

[0085] Step 3: mixing the oil phase and the water phase, and emulsification at a high speed of 8000rpm for 5min to obtain an oil-in-water emulsion;

[0086] Step 4: 0.3g of diethylenetriamine is prepared into 3g of 10% diethylenetriamine aqueous solution with deionized water and added to the oil-in-water emulsion, kept at 45°C, stirred at 300rpm for 3h, cooled to room temperature after the polymerization reaction is completed, and obtained intermediate reaction solution;

[0087] Step 5: add 2g YUS-FS3000, 2.5g ethylene glycol, 0.1g xanthan gum and 0.25g ...

Embodiment 2

[0088] Embodiment 2: 5% prothioconazole microcapsule suspension

[0089] The preparation method of 5% prothioconazole microcapsule suspension is as follows:

[0090] Step 1: Dissolve 5.11g 98% prothioconazole in 10g ADMA810 and add 4g 992 and 1.2g HDI, mix and stir well as oil phase;

[0091] Step 2: Add 0.1g of silicone antifoaming agent to 65.14g of deionized water and mix evenly, as the water phase;

[0092] Step 3: mixing the oil phase and the water phase, and emulsification at a high speed of 10000rpm for 5min to obtain an oil-in-water emulsion;

[0093] Step 4: 0.4g of tetraethylenepentamine was prepared into 8g of 5% tetraethylenepentamine aqueous solution with deionized water and added to the oil-in-water emulsion, kept at 45°C, stirred at 300rpm for 4h, cooled to room temperature after the polymerization reaction was completed, and obtained intermediate reaction solution;

[0094] Step 5: Put 3g 2500, 3 g of propylene glycol, 0.15 g of xanthan gum, and 0.3 g of...

Embodiment 3

[0095] Embodiment 3: 10% prothioconazole microcapsule suspension

[0096] The preparation method of 10% prothioconazole microcapsule suspension is as follows:

[0097] Step 1: Dissolve 10.21g of 98% prothioconazole in a mixed solvent composed of 20g of Genagen 4296 and 5g of No. 200 solvent oil, add 4g of YUS-5050PB and 1.8g of HDI, mix and stir evenly as an oil phase;

[0098] Step 2: Add 0.3g of organosilicon defoamer to 43.09g of deionized water and mix well to serve as the water phase;

[0099] Step 3: mixing the oil phase and the water phase, and emulsification at a high speed of 10000rpm for 5min to obtain an oil-in-water emulsion;

[0100] Step 4: Use deionized water to prepare 0.2 g of diethylene triamine into 8 g of a 2.5% diethylene triamine aqueous solution and add it to the oil-in-water emulsion, keep at 50° C., stir at 300 rpm for 4 hours, and cool down to room temperature after the polymerization reaction is completed to obtain intermediate reaction solution; ...

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Abstract

The invention relates to a prothioconazole micro-capsule suspending agent and a preparation method and application thereof.The prothioconazole micro-capsule suspending agent comprises a micro-capsule core, the micro-capsule core is prothioconazole, the content of prothioconazole in the prothioconazole micro-capsule suspending agent is 1-20% by mass, the micro-capsule suspending agent further comprises a micro-capsule wall, the content of prothioconazole in the micro-capsule suspending agent is 1-20% by mass, and the content of prothioconazole in the micro-capsule wall is 1-20% by mass. The capsule wall of the microcapsule is made of polyurea or polyurethane, and the polyurea is generated by carrying out polymerization reaction on a polymeric monomer isocyanate and a polymeric monomer polyamine; the polyurethane is generated by polymerization reaction of a polymeric monomer isocyanate and a polymeric monomer polyol. The prothioconazole microcapsule suspending agent further comprises a solvent, an emulsifying agent, a dispersing agent, an anti-freezing agent, a thickening agent, a preservative, a defoaming agent and a dispersing medium. The prothioconazole microcapsule suspending agent provided by the invention is good in performance, has a longer lasting period compared with a conventional dosage form, can reduce the prevention and treatment cost of wheat scab, and has a good popularization value.

Description

technical field [0001] The present invention relates to the field of pesticide formulations, in particular, the present invention relates to a prothioconazole microcapsule suspending agent, a preparation method thereof, and an application in agriculture for preventing and treating wheat scab. Background technique [0002] In agricultural production, the prevention and control of wheat diseases is very important. Wheat scab is also one of the main diseases of wheat. However, in the actual application of pesticides, there are often unscientific use cases such as excessive spraying and liquid drift. This leads to the development of resistance, increased drug costs, and harm to non-target crops. Therefore, the development of high-efficiency, low-toxic and low-cost disease control methods has always been an important research and development direction. [0003] Prothioconazole (prothioconazole; development code: JAU6476, AMS21619) is a triazole thione fungicide developed by Baye...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N25/28A01N25/04A01P3/00
CPCA01N43/653A01N25/28A01N25/04
Inventor 代劲松梁任龙刘新烁刘志勇
Owner 宁夏苏融达化工有限公司
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