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Aqueous emulsion of bifenthrin, and preparation method

A technology of bifenthrin and water emulsion, which is applied in the directions of biocides, animal repellents, plant growth regulators, etc., can solve the problems that water emulsions occupy a small share, the stability is not very good, and the water emulsions are unstable. To achieve the effect of reducing toxicity, avoiding burning and explosion, and reducing drift

Inactive Publication Date: 2006-12-06
NANJING REDSUN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil-water dispersion system of water emulsion has been studied in the development of pesticide formulations as early as the early 19th century. However, water emulsion is an unstable system, because of its poor stability and prone to delamination. So far, it has been used in conventional pesticide formulations. The water emulsion occupies a very small share in the variety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: 5% bifenthrin aqueous emulsion

[0032] Bifenthrin 5%

[0033] Xylene 10%

[0034] OP-10 Phosphate 8%

[0035] Glycerol 5%

[0036] Polyacrylate 0.1%

[0037] Deionized water to 100%

[0038] When processing the water emulsion, carry out in the emulsification dispersion tank, first mix the weighed bifenthrin and the organic solvent evenly under mechanical stirring to form an oil phase; Put the acrylate into the emulsification and dispersion tank, and start stirring at the speed of 5000 rpm; then put the oil phase into the emulsification and dispersion tank, and stir for 35-40 minutes to make it into a uniform emulsion.

Embodiment 2

[0039] Embodiment 2: 10% bifenthrin aqueous emulsion

[0040] Bifenthrin 10%

[0041] Xylene 8%

[0042] MAP 6%

[0043] Propylene Glycol 5%

[0044] Tap water to 100%

[0045] First, put the weighed bifenthrin, xylene, and Nongru No. 34 into the emulsification dispersion kettle and mix evenly, and start stirring at a speed of 8000 rpm to form an oil phase; after mixing deionized water and propylene glycol, slow Quickly put it into the emulsification dispersion kettle and stir for about 50 minutes to make it into a uniform emulsion.

Embodiment 3

[0046] Embodiment 3: 20% bifenthrin aqueous emulsion

[0047] Bifenthrin 20%

[0048] Xylene 20%

[0049] By140 10%

[0050] Isopropanol 5%

[0051] Tap water to 100%

[0052] First, put the weighed bifenthrin, xylene, and By140 into the emulsification dispersion kettle and mix evenly, start stirring at a speed of 2000 rpm to form an oil phase; mix deionized water and propylene glycol and slowly put it into Emulsify and disperse in the tank, stir for about 30 minutes to make it a uniform emulsion.

[0053] Bifenthrin aqueous emulsion main technical index of the present invention:

[0054]

[0055] Bifenthrin aqueous emulsion of the present invention is better to cabbage cabbage caterpillar control effect in the field, and test result is as shown in table 2:

[0056] try

[0057] The invention has good control effect on cabbage caterpillar, and has good quick-acting property, the lasting effect period is more than 10 days, and the control effect is bett...

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PUM

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Abstract

An aquatic emulsion of bifenthrin used as a broad-spectrum insecticide without environmental pollution is prepared from bifenthrin, emulsifier EW7504, organic solvent, antifreezing stabilizer and water proportionally.

Description

technical field [0001] What the present invention relates to is a kind of broad-spectrum insecticide, chemical name is: 3-(2-chloro-3,3,3-trifluoropropene-L-base)-2,2, dimethyl cyclopropane carboxylic acid - 2-methyl-3-methyl-3-phenylbenzyl ester is also known as bifenthrin (bifenthrin) water emulsion and its preparation process. Background technique [0002] Bifenthrin is a widely used pyrethroid insecticide. Bifenthrin products have contact and stomach poisoning effects, and the knockdown effect is fast. It kills pests by paralyzing the nerve center of pests. Bifenthrin It is not easy to be absorbed by plants, and is mainly used to control pests in cotton, vegetables, fruit trees, tea trees, etc. The duration is also longer (up to 28 days for the prevention and control of mites) [0003] At present, there are a few manufacturers in China that produce technical materials, and their products are emulsifiable concentrate preparations. The emulsifiable concentrate preparati...

Claims

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Application Information

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IPC IPC(8): A01N53/06A01N25/02
Inventor 杨寿海孙小琴齐武王小平刘奎涛
Owner NANJING REDSUN
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