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Graphene oxide-pyraclostrobin nano-suspension concentrate, preparation method and application thereof

A technology of pyraclostrobin and nano-suspension, which is applied in chemical instruments and methods, botany equipment and methods, applications, etc., and can solve problems such as endangering non-target biological safety

Pending Publication Date: 2022-02-08
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, during the use of traditional pesticide formulations, the loss and decomposition of active ingredients due to runoff, drift and dripping are usually as high as 70%.
After the active ingredients of pesticides are drifted and leached by rainwater, the actual utilization rate of biological target absorption is only less than 0.1%, which seriously endangers the safety of non-target organisms

Method used

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  • Graphene oxide-pyraclostrobin nano-suspension concentrate, preparation method and application thereof
  • Graphene oxide-pyraclostrobin nano-suspension concentrate, preparation method and application thereof
  • Graphene oxide-pyraclostrobin nano-suspension concentrate, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh the following materials in proportion: active ingredient 32%, maleic acid acrylic acid copolymer sodium salt 2%, emulsifier 6%, ethylene glycol 5%, xanthan gum 0.1%, Cathone 0.2%, ethoxylated silicone oil 0.3 %, balance water;

[0033] The mass ratio of styrylphenol polyoxyethylene ether to tristyrylphenol polyoxyethylene ether phosphate in the emulsifier is 2:1. The emulsifier is a mixture of styrylphenol polyoxyethylene ether and tristyrylphenol polyoxyethylene ether phosphate.

[0034] Composite graphene oxide and pyraclostrobin according to the above ratio, then add maleic acid acrylic acid copolymer sodium salt, emulsifier, ethylene glycol, Cathone, organosilicon compound and water, stir to obtain a mixture, Colloidal milling first, and then grinding to a qualified particle size by a sand mill, and finally pouring into a high-speed mixer, and adding thickener xanthan gum to obtain graphene oxide-pyraclostrobin nano-suspension.

[0035] The mass ratios of gr...

Embodiment 2

[0040] Weigh the following materials in proportion: 35% active ingredient, 3% sodium salt of maleic acid acrylic acid copolymer, 9% emulsifier, 4% ethylene glycol, 0.05% xanthan gum, 0.1% Cathone, 0.2% ethoxylated silicone oil %, balance water;

[0041] The mass ratio of styrylphenol polyoxyethylene ether to tristyrylphenol polyoxyethylene ether phosphate in the emulsifier is 2:1. The emulsifier is a mixture of styrylphenol polyoxyethylene ether and tristyrylphenol polyoxyethylene ether phosphate.

[0042] The mass ratio of graphene oxide and pyraclostrobin in the active ingredient is 5:5.

[0043] The preparation method is the same as in Example 1.

Embodiment 3

[0045] Weigh the following materials in proportion: active ingredient 30%, maleic acid acrylic acid copolymer sodium salt 1%, emulsifier 3%, ethylene glycol 6%, xanthan gum 0.15%, Cathone 0.3%, ethoxylated silicone oil 0.4 %, balance water;

[0046] The mass ratio of styrylphenol polyoxyethylene ether to tristyrylphenol polyoxyethylene ether phosphate in the emulsifier is 2:1. The emulsifier is a mixture of styrylphenol polyoxyethylene ether and tristyrylphenol polyoxyethylene ether phosphate.

[0047] The mass ratio of graphene oxide and pyraclostrobin in the active ingredient is 5:5.

[0048] The preparation method is the same as in Example 1.

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Abstract

The present invention discloses a preparation method of graphene oxide (GO)-pyraclostrobin (Pyr) nano-suspension concentrate (NSC), and its application. The following components are included in terms of mass percentage,: active ingredient 30-35%, dispersant 1-3%, emulsifier 3-9%, antifreeze 4-6%, thickener 0.05-0.15%, preservative 0.1-0.3%, defoamer 0.2-0.4% and the balance is water. The active ingredient is a complex of GO and Pyr, the mass ratio of GO to Pry is (1-9): (1-9). Using the relevant characteristics and technology of nanomaterials, a new nano-pesticide formulation is prepared by compounding the original pesticide and additives, which significantly improves the biological activity, utilization and duration of fungicide active ingredients, reduces the amount and frequency of fungicide application, and decreases the fungicide loss and accelerates residue degradation. It provides a new way to achieve the improvement of the quality and efficiency of chemical fungicide, reduction of emissions and residual pollution.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparations, and in particular relates to a graphene oxide-pyraclostrobin nano-suspension agent and its preparation method and application. Background technique [0002] Pesticides are indispensable means of production in agricultural production, and are of great significance in promoting agricultural production and increasing farmers' income. According to reports, during the use of traditional pesticide formulations, the loss and decomposition of active ingredients due to runoff, drift and dripping are usually as high as 70%. After the active ingredients of pesticides are drifted and leached by rainwater, the actual utilization rate absorbed by biological targets is only less than 0.1%, which seriously endangers the safety of non-target organisms. Improving the performance of pesticides through the relevant properties of nanomaterials and advanced formulation processing methods, and giving fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N25/04A01N47/24A01P3/00
CPCA01N25/08A01N25/04A01N47/24A01P3/00C01B32/198
Inventor 王秀平彭飞于秀敏程才红侯文龙
Owner HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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