Carvacrol emulsion in water and preparation method tehreof

A technology of phenol water emulsion and carvacrol, which is applied in the field of carvacrol water emulsion pesticides, can solve the problems of easy precipitation of oily substances, reduce the use effect, and large environmental impact, and achieve the goal of avoiding environmental pollution, safe use, and low price Effect

Inactive Publication Date: 2014-08-27
陈浩 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pesticide formulations have poor stability, and oily substances are easily precipitated on the surface, which reduces the use effect; microemulsions need to add a l...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) Weigh 80% carvacrol technical 6.25%, ethanol 6%, organosilicon penetrant 2%, glycerol 3%, organosilicon defoamer 0.3%, rosemary 0.2%, and mix well dissolve;

[0034] 2) Mix 5% β-cyclodextrin and AEO-910%, and fully dissolve with 6% co-solvent;

[0035] 3) Combine 1) and 2), add water until the carvacrol content is 5%, fully stir with an efficient emulsifier at a stirring speed of 3000 rpm and a pressure of 1.6 MPa, and shear at a high speed for 30 minutes to make it Uniform emulsified liquid, that is, 5% carvacrol water emulsion.

Embodiment 2

[0037] 1) Weigh 12.5% ​​of 80% carvacrol technical material, 12% ethanol, 2% water-soluble azone, 3% ethylene glycol, 0.3% GPE30, 0.4% xanthan gum, mix well and dissolve;

[0038] 2) Mix 8% of β-cyclodextrin with Nongru 60210%, and fully dissolve with 8% of co-solvent;

[0039] 3) Combine 1) and 2), add water until the carvacrol content is 10%, fully stir with an efficient emulsifier at a stirring speed of 3000 rpm and a pressure of 1.6 MPa, and shear at a high speed for 40 minutes to make it Uniform emulsified liquid, namely 10% carvacrol water emulsion.

Embodiment 3

[0041] 1) Weigh 25% of the original drug of 80% carvacrol, 15% of ethanol, 2% of water-soluble azone, 3% of ethylene glycol, 0.5% of GPE30, 0.4% of xanthan gum, mix well and dissolve;

[0042] 2) Mix 10% of β-cyclodextrin with 10% of EL-125, and fully dissolve with 10% of co-solvent;

[0043] 3) Combine 1) and 2), add water until the carvacrol content is 20%, fully stir with an efficient emulsifier at a stirring speed of 4000 rpm and a pressure of 1.7 MPa, and shear at a high speed for 60 minutes to make it Uniform emulsified liquid, that is, 20% carvacrol water emulsion.

[0044] Drug efficacy test example

[0045] With the carvacrol water emulsion of the present invention, carry out laboratory test and field drug effect test respectively with clear water and commercially available pesticide, drug effect contrast is as follows:

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PUM

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Abstract

The invention relates to a carvacrol emulsion in water and a preparation method thereof. The carvacrol emulsion in water comprises, by weight, 1-20% of carvacrol, 6-15% of a solvent, 1-3% of a penetrating agent, 1-3% of an anti-freezing agent, 0.3-1% of a defoaming agent, 0.05-0.4% of a stabilizing agent, 6-12% of a surfactant, 6-10% of a sustained-release agent and 6-10% of a co-solvent, with the balance being water. The active components and preferable auxiliary agents of the carvacrol emulsion in water are all environment-friendly and has extremely low toxicity and little side effect, and can be applied in any countries all over the world without restriction. The carvacrol emulsion in water has high stability, good bactericidal and insecticidal effects and sustained-release effect; and the preparation method is simple and has no pollution.

Description

technical field [0001] The invention relates to the technical field of carvacrol water emulsion pesticide. Background technique [0002] Carvacrol is the main component of oregano oil, the active extract of traditional Chinese herbal medicine oregano, with a content of about 80%, and it can be artificially synthesized now. Carvacrol is a colorless oily liquid with thymol smell, insoluble in water, soluble in ethanol, ether, and alkali solution. Carvacrol has a special aromatic smell and strong antibacterial and insecticidal activity, and is widely used in spices, food and feed additives, antioxidants and bactericidal and insect repellents. [0003] At present, carvacrol is mainly used in three kinds of compound products of pesticides: 5% fungal water purifying agent (produced by a pesticide factory, containing 2.5% carvacrol and 2.5% acrylic acid), 2.1% eucarvacrol water agent ( Produced by a pesticide factory, containing 2% eugenol and 0.1% carvacrol) and carvacrol microe...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N31/08A01P3/00A01P7/04A01P7/02
Inventor 陈浩徐庆宣
Owner 陈浩
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