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Application of polyacrylamide and hydroxypropyl methyl cellulose composition to pesticide preparation

A technology of hydroxypropyl methylcellulose and polyacrylamide, which is applied in the field of pesticides to achieve the effects of improving effective utilization, accelerating sedimentation, and increasing density difference

Active Publication Date: 2016-06-29
江西正邦作物保护股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Although polyacrylamide and hydroxypropyl methylcellulose are widely used, they are used in pesticide products to improve the physical and chemical properties of pesticide solutions, improve atomization performance, and improve the effective utilization of pesticides, especially for ultra- Low-capacity spray, no literature and related patent reports

Method used

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  • Application of polyacrylamide and hydroxypropyl methyl cellulose composition to pesticide preparation
  • Application of polyacrylamide and hydroxypropyl methyl cellulose composition to pesticide preparation
  • Application of polyacrylamide and hydroxypropyl methyl cellulose composition to pesticide preparation

Examples

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Embodiment 1

[0022] Embodiment one: Taking 5% abamectin water emulsion (EW) as an example, abamectin is a semi-synthetic sixteen-membered macrocyclic lactone compound, due to the anionic hydroxyl-OH and carboxyl-COOH present in the functional group structure and carbonyl C=O, choose cationic polyacrylamide-based aqueous solution and abamectin aqueous emulsion aqueous solution for mixing. Add the materials in the ratio of cationic polyacrylamide:anionic polyacrylamide:hydroxypropyl methylcellulose=5:2:3 to 100mL deionized water at 25°C in sequence, and fully stir to dissolve. Among them, cationic polyacrylamide has a molecular weight of 8 million to 20 million and has a linear structure; the methoxyl content of hydroxypropyl methylcellulose is between 25% and 32%, and the hydroxypropyl content is between 10% and 15%. Between %, add cationic polyacrylamide, anionic polyacrylamide, and hydroxypropyl methylcellulose in sequence. After adding cationic polyacrylamide, keep warm at 25°C and fully...

Embodiment 2

[0023] Example 2: Preparation of a disintegrant containing polyacrylamide and hydroxypropylmethylcellulose. During the processing process, the polyacrylamide and hydroxypropyl methylcellulose in the formula ratio must be fully melted according to the method in Example 1 to form a gel-state aqueous solution and then evenly spray on fillers: white carbon black, diatomaceous earth, Fully adsorbed in calcined kaolin, light calcium carbonate, etc. The formed disintegrant can be applied to dosage forms such as wettable powder and emulsifiable concentrate.

[0024] The above examples of implementation and the solvents and methods used are limited to this test, but the agricultural preparations prepared according to the combination required in this patent are not limited to these solvents, and there may also be differences, all of which are described in this patent. within the scope of authority. For example, in the UAV atomized spray of 48% chlorpyrifos ultra-low volume (ULV), it i...

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Abstract

The invention relates to application of a polyacrylamide and hydroxypropyl methyl cellulose composition to pesticide preparation. The ratio of polyacrylamide to hydroxypropyl methyl cellulose is 1:10-10:1, the polyacrylamide and hydroxypropyl methyl cellulose mixture is used for preparing a pesticide auxiliary or being directly added into pesticide, and the polyacrylamide and hydroxypropyl methyl cellulose composition has a good effect of increasing the effective use ratio of pesticide spray.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to the application of a composition of polyacrylamide and hydroxypropyl methylcellulose in the field of pesticides to improve the utilization rate of pesticides. Background technique [0002] Today's era is undergoing a technological revolution in green agriculture, organic agriculture, and precision agriculture, and more advanced digital agriculture will also be implemented. The research on precision pesticide spraying technology in my country is still in its infancy. In the conventional spray atomization of pesticide products, there are serious problems such as atomization drift, loss, bounce and crystallization caused by volatilization of the pesticide solution, which leads to the effective utilization of pesticides. Low. Research by professional scientific research institutions proves that the effective utilization rate of pesticides in conventional spray atomization is less than 20%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/02A01N25/30A01N25/06A01N43/90A01P7/04
CPCA01N25/02A01N25/06A01N25/30A01N43/90
Inventor 翟文波代新洪谢远芳魏方林朱植银
Owner 江西正邦作物保护股份有限公司
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