Nanometer pesticide suspoemulsion taking fatty acid starch ester as wrapping matrix and preparation method of nanometer pesticide suspoemulsion
A nano-pesticide and starch ester technology, applied in the field of pesticides, to achieve the effect of reducing the amount of pesticides, low prices, and promoting environmental protection
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Embodiment 1
[0044] The preparation method of the 3% indoxacarb nano-pesticide suspension with starch stearate as the coating matrix comprises the following steps:
[0045] (1) Weigh 0.6kg starch stearate, 3.8kg indoxacarb (content greater than 98%), 55L butyl acetate, 1.5kg surfactant BY-125, 60L deionized water, 1.0kg disperse Agent EI-40, spare;
[0046] (2) Starch stearate was added to 30L butyl acetate, and stirred ultrasonically for 10 minutes at a temperature of 80°C until the starch stearate was dissolved to obtain solution 1;
[0047] (3) Add indoxacarb to 25L of butyl acetate, and dissolve it with ultrasound at room temperature to obtain solution 2;
[0048] (4) Add surfactant BY-125 into deionized water, stir at high speed to disperse to obtain solution 3 containing surfactant, then quickly add solution 1 and solution 2 into solution 3 under high speed stirring, and continue stirring at high speed for 30 minutes to obtain a suspoemulsion;
[0049] (5) ultrasonically dispersin...
Embodiment 2
[0052] Taking starch palmitate as the 3.5% abamectin nano-pesticide suspension for wrapping matrix, its preparation method comprises the following steps:
[0053] (1) Weigh 0.7kg starch palmitate, 5.3kg avermectin (content greater than 80%), 35L butyl acetate, 15L capric amide, 2.0kg surfactant BY-125, 65L deionized Water, 1.5kg dispersant Darun DSV, spare;
[0054] (2) Add starch palmitate to 10L butyl acetate and 15L capric amide, and stir ultrasonically at 80°C for 10 minutes until the starch palmitate is dissolved to obtain solution 1;
[0055] (3) Abamectin was added to 25L butyl acetate, and stirred at a high speed under room temperature to dissolve it, to obtain solution 2;
[0056] (4) Add surfactant Tween-80 into deionized water, stir and disperse at high speed to obtain solution 3 containing surfactant, then quickly add solution 1 and solution 2 to solution 3 under high-speed stirring, and continue stirring at high speed 30min obtains the suspoemulsion;
[0057] (...
Embodiment 3
[0060] The preparation method of the 5% chlorantraniliprole nano-pesticide suspension with starch palmitate as the coating matrix may further comprise the steps:
[0061] (1) Take by weighing 0.8kg starch laurate, 6.3kg chlorantraniliprole (content 95%), 20L butyl acetate, 10L capric amide, 25 liters of acetamide, 1.8kg surfactant Tween- 60. 60L deionized water, 1.2kg dispersant NS-500LQ, spare;
[0062] (2) Add starch laurate to 20L butyl acetate and 10L capric amide, and ultrasonically stir at 80°C for 20 minutes until starch palmitate is dissolved to obtain solution 1;
[0063] (3) Add chlorantraniliprole to 25 liters of acetamide, stir at a high speed at room temperature to dissolve it, and obtain solution 2;
[0064] (4) Add surfactant Tween-60 into deionized water, stir and disperse at high speed to obtain solution 3 containing surfactant, then quickly add solution 1 and solution 2 to solution 3 under high-speed stirring, and continue stirring at high speed Obtain the ...
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