Thymol mite-killing microemulsion and preparation method thereof

The invention relates to a technology of a thymol acaricidal microemulsion and thymol, which is applied in the field of the thymol acaricidal microemulsion and its preparation, and achieves the effects of saving organic solvents, harming mites with high efficiency, and improving the efficacy of killing mites.

Active Publication Date: 2009-12-16
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no report on the manufacture of plant-based acaricides using thymol as a raw material has been found at home and abroad

Method used

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  • Thymol mite-killing microemulsion and preparation method thereof
  • Thymol mite-killing microemulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、5

[0061] The preparation of embodiment 1,5% thymol acaricidal microemulsion

[0062] 5% thymol acaricidal microemulsion consists of the following substances in percentage by weight:

[0063] Thymol 5%,

[0064] Solvent 20%,

[0065] Emulsifier 15%,

[0066] Stabilizer 1.5%,

[0067] Antifreeze 2.5%,

[0068] The balance is water.

[0069] Wherein, the purity of thymol is 97%, the solvent is the mixture of ethanol and cyclohexanone, the mass ratio of ethanol and cyclohexanone is 4:1, the emulsifier is nonylphenol polyoxyethylene ether, and the stabilizer is 3-chloro -1,2-propylene oxide, the antifreeze is glycerol.

[0070] The preparation method of above-mentioned 5% thymol acaricidal microemulsion is as follows:

[0071] Take by weighing 5.2 kilograms of 97% (mass content) thymol, be dissolved in the mixed solution of 16 kilograms of ethanol and 4 kilograms of cyclohexanone, add successively 15 kilograms of nonylphenol polyoxyethylene ethers, 2.5 kilograms of glycerol an...

Embodiment 2、7

[0072] Preparation of embodiment 2, 7.5% thymol acaricidal microemulsion

[0073] The 7.5% thymol acaricidal microemulsion consists of the following substances in percentage by weight:

[0074] Thymol 7.5%,

[0075] Solvent 16%,

[0076] Emulsifier 14%,

[0077] Stabilizer 2%,

[0078] Antifreeze 3%,

[0079] The balance is water.

[0080] Wherein, the purity of thymol is 97%, the solvent is the mixture of pimelinketone and dimethyl sulfoxide, the mass ratio of pimelinketone and dimethyl sulfoxide is 15: 1, and the emulsifier is phenol derivative polyoxyethylene ether and Alkylbenzene sulfonate (the mass ratio of phenol derivative polyoxyethylene ether and alkylbenzene sulfonate is 9:5), the stabilizer is butyl glycidyl ether, and the antifreeze agent is propylene glycol.

[0081] The preparation method of above-mentioned 7.5% thymol acaricidal microemulsion is as follows:

[0082] 7.7 kilograms of 97% thymol are dissolved in the mixed solution of 15 kilograms of pimeli...

Embodiment 3、10

[0083] Preparation of embodiment 3, 10% thymol acaricidal microemulsion

[0084] 10% thymol acaricidal microemulsion consists of the following substances in percentage by weight:

[0085] Thymol 10%,

[0086] Solvent 18%,

[0087] Emulsifier 16%,

[0088] Stabilizer 2%,

[0089] Antifreeze 3.5%,

[0090] The balance is water.

[0091] Wherein, the purity of thymol is 97%, the solvent is a mixture of methanol and cyclohexanone, the mass ratio of methanol and cyclohexanone is 15:3, and the emulsifier is phenol derivative polyoxyethylene ether, nonylphenol polyoxyethylene Ether and alkylbenzenesulfonate (the mass ratio of phenol derivative polyoxyethylene ether, nonylphenol polyoxyethylene ether and alkylbenzenesulfonate is 8:5:3), and the stabilizer is butyl glycidyl ether , Antifreeze is propylene glycol.

[0092] The preparation method of above-mentioned 10% thymol acaricidal microemulsion is as follows:

[0093] Take by weighing 10.3 kilograms of 97% thymol, after bei...

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Abstract

The invention discloses a thymol mite-killing microemulsion and a preparation method thereof. The microemulsion comprises the following components in percentage by weight: 5 to 25 percent of thymol, 10 to 20 percent of solvent, 10 to 20 percent of emulsion, 0.5 to 3 percent of stabilizer, and 1 to 5 percent of antifreeze agent, and the balance of water. The microemulsion has broad spectrum of killing mites, can effectively prevent and control various agricultural pest mites, such as Tetranychus cinnabarinus, Tetranychus piercei McGregor, Oligonychus biharensis and the like, and is safe and low in toxicity. The microemulsion has simple production process, easy preparation and low cost.

Description

technical field [0001] The invention relates to a thymol acaricidal microemulsion and a preparation method thereof. Background technique [0002] Thymol (Thymol), also known as thymol, thymol, the chemical name is 2-isopropyl-5-methylphenol, the structural formula is: [0003] [0004] Thymol is white crystal or colorless translucent crystal at room temperature, melting point: 51.5°C, boiling point: 233-235°C, with spicy and grassy aroma like thyme oil. Very soluble in ethanol, ether, acetic acid, chloroform and benzene. Mainly found in Thymus serpyllum L. grass of Lamiaceae plants, thyme T.vulgaris L. whole grass, oregano Origanum vulgare L. whole grass, fragrant green blue Dracocephalum moldavicum L. whole grass and Umbelliferae thick parsley In Trachyspermum ammi (L.) Sprague seeds. In addition to being used as a spice and food additive, thymol can also be used as a medical drug, used for oral sterilization, and can also be used to treat wounds and store anatomical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/08A01N25/04A01P7/02
Inventor 张静冯岗袁旭超杜晓峰侯华民曲晓苟亚峰孙世伟林勇
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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