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Dinotefuran suspending agent and preparation method thereof

A technology of dinotefuran and suspending agent, which is applied in the field of pesticide suspension containing dinotefuran and its preparation, and can solve problems such as high price

Inactive Publication Date: 2017-04-26
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dispersion effect of the suspoemulsion researched and developed abroad is obviously better than domestic ones, but the price is high, and domestic technical breakthroughs are yet to be made

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 5% Dinotefuran Suspending Concentrate

[0065] The content of each component (by weight) is 5% of dinotefuran original drug, 5% of polyoxyethylene ether glycidyl ether phosphate dispersant; 6% of polymer EO / PO block copolymer emulsifier, thickener Xanthan gum XG 2%, stabilizer phenyl glycidyl ether 10%, defoamer silicone 6%, antifreeze agent ethylene glycol 4%, pH adjuster in appropriate amount to make the pH value of the suspending agent 8. Add deionized water to l00%.

[0066] Step 1: Mix water, wetting and dispersing agent, stabilizer, and defoamer evenly according to the above formula, put in dinotefuran original drug and disperse evenly, then carry out continuous sand milling with a sand mill. The temperature is controlled below 40 degrees, and the average After the particle size reaches 5um±3um, stop sanding to obtain dinotefuran suspension;

[0067] Step 2: Dissolve the emulsifier in the antifreeze and mix well to get the oil phase. Mix the emulsifier and wate...

Embodiment 2

[0073] Embodiment 2 10% dinotefuran suspension concentrate

[0074] Each component by weight is dinotefuran technical 10%, dispersant polyoxyethylene ether glycidyl ether phosphate 10%; polymer EO / PO block copolymer emulsifier 6%, thickener hydroxymethyl Cellulose 3%, stabilizing agent butyl glycidyl ether 2.5%, antifoaming agent tridecanoic acid 1%, antifreeze agent glycerin 3%, pH adjusting agent appropriate amount to make the suspension agent pH value be 7, add deionized water to 100%. The specific preparation is carried out according to Example 1.

[0075] Appearance: white uniform liquid; average particle size, 2.35um; emulsion stability, qualified;

[0076] The suspending agent prepared by this formula has a suspension rate of 97.80% and good dispersibility.

Embodiment 3

[0077] Embodiment 3 15% dinotefuran suspension concentrate

[0078] Each component by weight is dinotefuran technical 15%, dispersant polyoxyethylene ether glycidyl ether phosphate 15%; polymer EO / PO block copolymer emulsifier 6% thickener methyl cellulose 3%, stabilizer phenyl glycidyl ether 2.5%, antifoaming agent Cl0-20 saturated fatty acid compound 1%, antifreeze agent glycerin 3%, pH adjuster in appropriate amount to make the pH value of the suspending agent 7, add deionized water to 100%. The specific preparation is carried out according to Example 1.

[0079] Appearance: white uniform liquid; average particle size, 3.52um; emulsion stability, qualified;

[0080] The suspension rate is 97.50%, and the dispersion is good.

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PUM

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Abstract

The invention discloses a dinotefuran suspending agent. The suspending agent comprises, by mass, 1-25 parts of dinotefuran, 2-15 parts of a dispersant and a wetting agent, 2-5 parts of an emulsifier, 10-20 parts of a stabilizer, 0.1-2 parts of a thickener, 0.1-2 parts of an antifoaming agent, 0.005-2 parts of an antiseptic, 0.1-1 part of an antifreeze agent, 0.1-1 part of a pH regulator, and the balance of water, wherein the mass part sum of all above raw materials is 100. The invention also discloses a preparation method of the dinotefuran suspending agent. The average 95% particle size of dinotefuran is less than 5 [mu]m, and the suspending agent has the advantages of uniform particle size distribution, good stability, high spreadability and stickiness on crop leaf surfaces and good rain wash resistance; the suspending rate reaches 96% or above, and the suspending rate has good fluidity, does not stick bottle walls, has good hot / cold storage stability, and is easy to pour.

Description

technical field [0001] The invention relates to the field of pesticide formulation processing, relates to a pesticide formulation containing dinotefuran, in particular to a pesticide suspension containing dinotefuran and a preparation method thereof. Background technique [0002] In the 21st century, the use of pesticides is still one of the main means for humans to fight against diseases, insect pests and weeds in agricultural production. With the extensive use of pesticides, a large number of organic solvents have polluted the environment. With the continuous enhancement of people's environmental protection awareness and safety knowledge, pesticide formulations have become water-based, granular, slow-release, multi-functional, and labor-saving. And the direction of environmental protection, especially the dosage form of suspoemulsion is more and more subject to people's favor and attention. Pesticide Suspension Concentrate (SC) is an environmentally friendly and environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N25/04A01N25/30A01P7/04
Inventor 任天瑞刘如军张雷
Owner SHANGHAI NORMAL UNIVERSITY