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Pesticide water emulsion and preparation method thereof

A water emulsion and pesticide technology, applied in the field of pesticides, can solve the problems of non-environmentally friendly organic solvents, high concentration of epoxiconazole, high cost, etc., and achieve the effect of improving the control effect

Active Publication Date: 2010-03-17
SHENZHEN NOPOSION AGROCHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a pesticide emulsion in water, which aims to solve the problem that the existing epoxiconazole aqueous emulsion still needs to use non-environmentally friendly organic solvents such as aromatic hydrocarbons, and the control effect is poor, and the concentration of epoxiconazole is high and the cost is high. The problem

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0025] The embodiment of the present invention also provides a kind of preparation method of above-mentioned pesticide aqueous emulsion, comprises the following steps:

[0026] (1) Add epoxiconazole, organic solvent, and emulsifier into the reaction kettle, and mix uniformly to form an oil phase; stir and mix the thickener and water evenly to form a water phase;

[0027] Wherein, salicylic acid is evenly mixed in the water phase; and / or

[0028] Turpentine is uniformly mixed in the oil phase;

[0029] (2) Evenly mix the water phase and the oil phase, and ultrasonically emulsify to form a water emulsion.

[0030] Furthermore, an antifreezing agent and an antifoaming agent are uniformly mixed in the above water phase.

[0031] Furthermore, under the condition of stirring, the water phase and the oil phase are uniformly mixed, under the conditions of resonance frequency of 10-50 kHz and power of 100-1000 W, ultrasonic emulsification for 5-15 minutes to form the water emulsion. ...

Embodiment 1

[0034] Weigh 131.58 kg of epoxiconazole, 60 kg of D-limonene, 50 kg of N-methylpyrrolidone, 25 kg of polyoxyethylene polyoxypropylene block copolymer, 20 kg of fatty alcohol polyoxyethylene ether phosphate, and mix evenly to obtain oil Phase; take by weighing 30 kilograms of ethylene glycol, 30 kilograms of salicylic acid, 3 kilograms of xanthan gum, 1 kilogram of methylpolysiloxane, and 624.42 kilograms of water, and mix to obtain the water phase; Under the condition, add the water phase to the oil phase. Under the condition of homogenizer rotating speed 5000 rev / mins, homogenize 8 minutes, form 1000 kilograms of 12.5% ​​epoxiconazole emulsions.

Embodiment 2

[0036] Weigh 131.58 kg of epoxiconazole, 60 kg of D-limonene, 50 kg of N-methylpyrrolidone, 25 kg of polyoxyethylene polyoxypropylene block copolymer, 20 kg of fatty alcohol polyoxyethylene ether phosphate, and mix evenly to obtain oil Phase; take by weighing 30 kilograms of ethylene glycol, 30 kilograms of salicylic acid, 3 kilograms of xanthan gum, 1 kilogram of methylpolysiloxane, and 649.42 kilograms of water, and mix to obtain the water phase; Under the condition, add the water phase to the oil phase. Under the conditions of a resonance frequency of 25 kHz and a power of 500 W, ultrasonic emulsification was performed for 8 minutes to form 1000 kg of 12.5% ​​epoxiconazole emulsion.

[0037] In this example, the epoxiconazole emulsion was stored in heat at 54±2°C, and tested for low-temperature stability at 0±2°C and -15±2°C. The results are shown in Table 2. From the results in Table 2, it can be seen that the epoxiconazole emulsion in this example has excellent cold and ...

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Abstract

The invention provides a pesticide water emulsion and a preparation method thereof, and the pesticide water emulsion comprises an effective amount of an active ingredient of epoxiconazole, the effective amount of an acceptable adjuvant for the water emulsion, the effective amount of an organic solvent which can dissolve the epoxiconazole and water, and the adjuvant comprises the effective amount of the synergistic adjuvant of salicylic acid and / or turpentine oil; and the preparation method comprises the steps of (1) preparing a water phase; preparing an oil phase; (2) evenly mixing the water phase with the oil phase, and carrying out ultrasonic emulsification for forming the water emulsion. The pesticide water emulsion adds the effective amount of the synergistic adjuvant of the salicylicacid and / or the turpentine oil, thereby improving the prevention and treatment effects of the epoxiconazole water emulsion, reducing the using concentration of the epoxiconazole and reducing the cost.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a pesticide water emulsion and a preparation method thereof, in particular to a epoxiconazole water emulsion and a preparation method thereof. Background technique [0002] Epoxiconazole is a new type of systemic triazole fungicide, which not only has good protection, treatment and eradication activities, but also has systemic and better residual activity. It has a good control effect on leaf spot, powdery mildew, rust on bananas, onions, garlic, celery, kidney beans, melons, asparagus, peanuts, sugar beets and other crops, as well as anthracnose and white rot on grapes. [0003] At present, most of the epoxiconazole formulations produced and used are suspension concentrates and emulsifiable concentrates, and there are also epoxiconazole aqueous emulsion formulations disclosed, but the existing epoxiconazole aqueous emulsion still needs to use a certain amount of aromatic hydrocarbon orga...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N37/40A01N65/06A01N25/04A01P3/00
CPCY02A50/30
Inventor 王文忠张洪曹明章孔建李谱超
Owner SHENZHEN NOPOSION AGROCHEM
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