Chlorpyrifos microemulsion containing chenopodium ambrosioides oil and preparation method thereof

A technology of chlorpyrifos microemulsion and Nepeta essential oil, applied in botany equipment and methods, insecticides, biocides, etc., can solve problems such as excessive use of chlorpyrifos, achieve significant economic benefits and environmental protection significance, long validity period, evenly distributed effect

Inactive Publication Date: 2009-11-04
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, as the level of pest resistance has increased, the overuse of chlorpyrifos has become more serious

Method used

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  • Chlorpyrifos microemulsion containing chenopodium ambrosioides oil and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The raw material components of the microemulsion are according to weight percentage: the former medicine of chlorpyrifos is 35%, the nepeta essential oil is 1%, the surfactant is 20%, the cosolvent is 15%, the antifreeze agent is 2%, and the defoamer is 1%, water is 26%.

[0020] Nepeta essential oil is Nepeta essential oil extracted from Nepeta nepeta as a raw material.

[0021] Surfactant has one of 2201#, 0206B, 0204#, 0201B, 1602# or JFC.

[0022] The auxiliary solvent is one of xylene, absolute ethanol, dimethylformamide, n-hexane or cyclohexanone.

[0023] Antifreeze is one of ethylene glycol, propylene glycol or aromatic hydrocarbons.

[0024] The defoamer is n-butanol or n-octanol.

[0025] All raw materials of the present invention are commercially available.

[0026] Preparation method: firstly mix chlorpyrifos technical material and nepeta essential oil in proportion, then add co-solvent, surfactant, defoamer, water according to the ratio, mix evenly; fin...

Embodiment 2

[0028] The raw material components of microemulsion are according to percentage by weight: the former medicine of chlorpyrifos is 30%, the nepeta essential oil is 1.5%, the surfactant is 15%, the cosolvent is 10%, the antifreezing agent is 1.5%, and the defoamer is 1%, water is 41%.

[0029] Nepeta essential oil is Nepeta essential oil extracted from Nepeta nepeta as a raw material;

[0030] Surfactant has one of 2201#, 0206B, 0213, 600-2#, TX-10 or 4203#.

[0031] Cosolvent is a kind of in acetone, toluene or cyclohexanone.

[0032] Antifreeze is one of glycerol or aromatic hydrocarbons.

[0033] The defoamer is simethicone or n-butanol.

[0034] All raw materials of the present invention are commercially available.

[0035] Preparation method: firstly mix chlorpyrifos technical material and nepeta essential oil in proportion, then add co-solvent, surfactant, defoamer, water according to the ratio, mix evenly; finally add antifreeze, stir evenly to form a transparent , S...

Embodiment 3

[0037] The raw material components of the microemulsion are according to weight percentage: the former medicine of chlorpyrifos is 20%, the nepeta essential oil is 2%, the surfactant is 10%, the cosolvent is 12%, the antifreezing agent is 3%, and the defoamer is 1%, water is 52%.

[0038] Surfactant has one of 0206B, 0204#, 8206, 600# or EL-60.

[0039] The auxiliary solvent is one of toluene, xylene, methanol or ethyl acetate.

[0040] Antifreeze is one of glycerin or urea.

[0041] The defoamer is simethicone or n-octanol.

[0042] All raw materials of the present invention are commercially available.

[0043] Preparation method: firstly mix chlorpyrifos technical material and nepeta essential oil in proportion, then add co-solvent, surfactant, defoamer, water according to the ratio, mix evenly; finally add antifreeze, stir evenly to form a transparent , Stable microemulsion; stir when raw materials are mixed, the stirring speed is 300 rpm to 500 rpm, the stirring time i...

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Abstract

The invention provides a chlorpyrifos microemulsion containing chenopodium ambrosioides oil and a preparation method thereof. The chlorpyrifos microemulsion takes the chlorpyrifos as a main raw material and is added with the chenopodium ambrosioides oil. The preparation method is as follows: firstly the chlorpyrifos is mixed with the chenopodium ambrosioides oil based on proportion, secondly latent solvent, surfactants, defoamers and water are added to the mixture according to the mixture ratio and are mixed evenly, finally anti-freezers are added to the mixture and stirred evenly to form the transparent, stable, isotropical and one-phase microemulsion. The microemulsion of the invention is efficient and low-toxic and has little pollution to environment. The preparation method is simple and has obvious economic benefit and significance in environmental protection.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparations, and more specifically relates to a chlorpyrifos microemulsion containing nepeta essential oil and a preparation method thereof. Background technique [0002] Chlorpyrifos (Chlorpyrifos) is a high-efficiency organophosphorus insecticide that replaces highly toxic pesticides such as methamidophos and parathion. It has been registered in more than 88 countries around the world. It has contact killing, stomach poisoning and fumigation effects on pests, and can be used for rice, On many field crops and economic crops such as wheat, corn, soybean, peanut, cotton, fruit tree, tea tree, sugar cane, vegetables and flowers, it can control rice borer, rice leaf roller, wheat armyworm, leafhopper, cotton bollworm, aphid It also has a good control effect on underground pests and livestock parasites. In recent years, as the level of pest resistance has increased, the overuse of chlorpyrifos has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N57/16A01N25/04A01P7/00A01P7/04
Inventor 占志雄魏辉刘响飞吴玮黄玉清
Owner INST OF PLANT PROTECTION FAAS
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