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

Pending Publication Date: 2022-05-20
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the application of fatty acid starch esters in the field of pesticides.

Method used

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  • Nanometer pesticide suspoemulsion taking fatty acid starch ester as wrapping matrix and preparation method of nanometer pesticide suspoemulsion
  • Nanometer pesticide suspoemulsion taking fatty acid starch ester as wrapping matrix and preparation method of nanometer pesticide suspoemulsion
  • Nanometer pesticide suspoemulsion taking fatty acid starch ester as wrapping matrix and preparation method of nanometer pesticide suspoemulsion

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a nano pesticide suspoemulsion taking fatty acid starch ester as a wrapping matrix, the fatty acid starch ester is taken as the wrapping matrix, active molecules of a pesticide raw drug are wrapped in the fatty acid starch ester through high-speed emulsification and ultrasonic dispersion, and the nano pesticide suspoemulsion is formed. And the preparation method is simple, easy to implement, low in equipment investment and free of three wastes in the production process, and can be suitable for preparing different pesticide nano preparations.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a nano-pesticide suspoemulsion with fatty acid starch ester as a coating matrix and a preparation method thereof. Background technique [0002] At present, in addition to accelerating the research and development of new pesticides with high efficiency and low toxicity, improving the dosage forms and formulas of existing pesticides, giving full play to the efficacy of existing pesticides and reducing the amount of pesticides is another effective way for the sustainable development of modern agriculture and environmental protection. [0003] Compared with traditional pesticide formulations, nano-pesticide formulations that have emerged in recent years are a new type of pesticide formulation with good development prospects. Pesticide ingredients in nano-formulations have smaller particle sizes, higher specific surface areas, and provide better leaf coverage. At the same time, si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/26A01N25/22A01N47/38A01N43/90A01N43/56A01N53/00A01N51/00A01N43/707A01N47/02A01N43/36A01N43/16A01N43/653A01N43/88A01N47/24A01N57/24A01N43/40A01P7/04A01P3/00A01P1/00
CPCA01N25/04A01N25/26A01N25/22A01N47/38A01N43/90A01N43/56A01N53/00A01N51/00A01N43/707A01N47/02A01N43/36A01N43/16A01N43/653A01N43/88A01N47/24A01N57/24A01N43/40Y02A50/30
Inventor 崔建国黄燕敏陈勇熊齐鹏李香荧胡艳红江杨催郭勤卢瑞
Owner GAUNGXI TIANYUAN BIOCHEM
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