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High-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion and method for preparing same

A technology of beta-cypermethrin and avermectin, which is applied in the fields of botany equipment and methods, insecticides, biocides, etc., can solve the problem of difficult formulation of uniform pesticide emulsifiers, improper selection of emulsifier varieties, and insufficient stability To avoid issues such as guarantees, to avoid waste of transportation costs, good compatibility, and uniform appearance

Inactive Publication Date: 2012-11-28
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, some pesticide water emulsions have appeared in China, but their stability cannot be guaranteed, and they are prone to long-term stratification, flocculation, etc.
At the same time, due to improper selection of emulsifier varieties, the amount of emulsifier is relatively large, and the production cost of water emulsion is relatively high.
For example, it is Nongru No. 500 (calcium dodecylbenzenesulfonate) that is often used in the preparation of emulsion-in-water at present as an alkaline earth metal salt, and No. Nongru No. 500 is used in a large amount when used to prepare emulsion-in-water, and the prepared emulsion-in-water is stable Poor sex, prone to stratification, drug analysis and other phenomena
However, the alkali metal salt-type anionic surfactants currently on the domestic market have compatibility problems with non-ionic surfactants, and it is difficult to formulate the two into a uniform pesticide emulsifier.
Moreover, limited by the level of emulsifiers, some pesticide water emulsions developed in China have low active ingredient content. After the pests develop resistance, the efficacy of low concentration pesticide water emulsions will be greatly reduced.
In addition, most of the low-concentration water-in-water emulsion is water, so its transportation cost is relatively high, and users need to add more

Method used

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  • High-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion and method for preparing same
  • High-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: 1% Abamectin-10% beta-cypermethrin compound water emulsion

[0027] Abamectin 1%

[0028] Beta-Cypermethrin 15%

[0029] Toluene 18%

[0030] Emulsifier SD-1 5%

[0031] Xanthan Gum 0.5%

[0032] Ethylene glycol 2%

[0033] Silicone type defoamer 0.5%

[0034] Deionized water balance

[0035] Among them, the anionic surfactant in the SD-1 emulsifier is sodium lauryl polyoxyethylene ether sulfate and monolauryl polyoxyethylene ether phosphate, and the nonionic surfactant is Nongru No. 600. The ratio of the active agent is sodium lauryl polyoxyethylene ether sulfate:monopolyoxyethylene lauryl ether phosphate:Nongru No. 600 is 2:2:6.

[0036] Its preparation method:

[0037] 1. Add abamectin and beta-cypermethrin raw materials to the organic solvent toluene, mix under mechanical stirring, so that abamectin and beta-cypermethrin are completely dissolved in the solvent, and a uniform abamectin-beta-cypermethrin is made Oil agent.

[0038] 2. Add the emu...

Embodiment 2

[0040] Embodiment 2: 3% Abamectin-20% beta-cypermethrin compound water emulsion

[0041] Abamectin 3%

[0042] Beta-Cypermethrin 20%

[0043] Toluene 25%

[0044] Emulsifier SD-2 10%

[0045] Polyacrylamide 1%

[0046] Propylene Glycol 2%

[0047] Silicone defoamer 0.7%

[0048] Deionized water to 100%

[0049] Among them, the anionic surfactant in the SD-2 emulsifier is sodium dodecylbenzenesulfonate and sodium lauryl polyoxyethylene ether sulfate, and the nonionic surfactant is OP-10. The ratio of the three surfactants Sodium dodecylbenzenesulfonate: sodium lauryl polyoxyethylene ether sulfate: OP-10 is 3:2:5.

[0050] Its preparation method:

[0051] 1. Add abamectin and beta-cypermethrin raw materials to the organic solvent toluene, mix under mechanical stirring, so that abamectin and beta-cypermethrin are completely dissolved in the solvent, and a uniform abamectin-beta-cypermethrin is made Oil agent.

[0052] 2. Add emulsifier SD-2, polyacrylamide, propylene gl...

Embodiment 3

[0054] Embodiment 3: 5% Abamectin-30% beta-cypermethrin compound water emulsion

[0055] Abamectin 5%

[0056] Beta-Cypermethrin 30%

[0057] Xylene 30%

[0058] Emulsifier SD-3 15%

[0059] Polyacrylic acid 1%

[0060] Glycerol 2%

[0061] Silicone type defoamer 1%

[0062] Deionized water to 100%

[0063] Among them, the anionic surfactant in the SD-3 emulsifier is sodium dodecylbenzenesulfonate and monododecyl polyoxyethylene ether phosphate, and the nonionic surfactant is By130. The ratio of the three surfactants is Sodium dodecylbenzene sulfonate: monododecyl polyoxyethylene ether phosphate: By130 according to 3:3:4.

[0064] Its preparation method:

[0065] 1. Add abamectin and beta-cypermethrin raw materials into the organic solvent xylene, and mix under mechanical stirring, so that abamectin and beta-cypermethrin are completely dissolved in the solvent to make uniform avermectin-beta-cypermethrin Cypermethrin oil.

[0066] 2. Add emulsifier SD-3, polyacrylic ...

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Abstract

The invention relates to high-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion and method for preparing the same. According to the technical scheme, the high-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion is prepared by mixing the following materials by weight percent: 1-5 percent of abamectin, 15-30 percent of high-efficiency cypermethrin, 15-30 percent of solvent, 1-15 percent of emulsifier, 0.1-3 percent of thickening agent, 0.1-5 percent of antifreeze, 0-1 percent of organic silicone type defoamer and the balance of water. The method for preparing the high-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion comprises the following steps: (1) preparing abamectin and high-efficiency cypermethrin oil agent, (2) preparing auxiliary complex water agent, and (3) preparing high-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion. The high-efficiency concentratedabamectin and high-efficiency cypermethrin water emulsion has good storage stability, can efficiently kill crop pests, overcome the resistance of the crop pests and reduce the pollution of the organic solvent to the environment when a small amount of the high-efficiency concentrated abamectin and high-efficiency cypermethrin water emulsion is added by the farmers and is safer to prepare, transport and store, thereby being environmental-friendly high-efficiency novel pesticide.

Description

1. Technical field: [0001] The invention relates to a pesticide and a preparation method thereof, in particular to a method for preventing and controlling rice leaf rollers, rice stem borers, stem borers, vegetable cabbage caterpillars, diamondback moths, cabbage aphids, fruit tree aphids, leaf miners, and pear psyllids High-efficiency concentrated avermectin-beta-cypermethrin aqueous emulsion for crop pests such as worm, cotton bollworm, pink bollworm, and preparation method thereof. 2. Background technology: [0002] Abamectin is a new type of biological insecticide. The preparation is low-toxic and has no effect on humans. Abamectin kills pests through contact and stomach poisoning. It has strong penetration and has a strong penetration effect on leaves. It can kill pests under the epidermis, and has a long residual effect period. It kills pests by interfering with their neurophysiological activities, and has little damage to beneficial insects. Beta-cypermethrin is a py...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/08A01N43/90A01N25/04A01P7/04
Inventor 张志庆靳路超王芳
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)