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Suspension emulsion of nicotine microcapsule, and its prepn. method

A technology of microcapsules and suspoemulsions, applied in botany equipment and methods, biocides, animal repellents, etc., can solve the problems of nicotine decomposing quickly when exposed to light, so as to improve the control effect, prolong the drug effect time, and last The effect of extending the validity period

Inactive Publication Date: 2004-07-21
仲伟德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem of fast decomposition of nicotine upon exposure to light

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In Example 1, 2.8g of oily liquid nicotine, 0.5g of calcium dodecylbenzene sulfonate, 0.5g of phenethylphenol polyoxyethylene polyoxypropylene ether, 3g of castor oil, 4g of triphenylethylphenol polyoxygen were added Vinyl ether and 6g xylene were heated to 70°C while continuously stirring, and then 16g water was added for later use; 8g gelatin and 8g sodium alginate were added to 92g water for hydrolysis, respectively heated to 70°C, and the above hydrolyzed 25g each of the glue solution is filtered, mixed after filtration, and stirred evenly, add the uniformly stirred glue solution to the prepared backup solution, mix and stir at 400 rpm, and cool down naturally for 2 hours, and the result is Nicotine microcapsule suspension emulsion.

[0018] The comparison table of the nicotine microcapsule suspoemulsion of the above-mentioned embodiment and the 5% nicotine emulsifiable concentrate in the control of Pieris rapae is shown in Table 1.

[0019] Test sample

Embodiment 2

[0020] Example 2: Adding 5 g of oily liquid nicotine, 0.6 g of calcium dodecyl benzene sulfonate, 0.6 g of castor oil ethylene oxide adduct, 4 g of cottonseed oil, 4.5 g of dibenzyl biphenol polyoxyethylene ether , 7g of xylene, heated to 60℃, while stirring continuously, then add 18g of water for use; add 8g of starch gum and 8g of sodium alginate to 92g of water for hydrolysis, respectively heat to 60℃, take the above-mentioned hydrolyzed gum 28g each of the liquid is filtered, mixed after filtration, and stirred evenly. Add the uniformly stirred glue to the prepared standby liquid, mix and stir at 500 rpm, and cool down naturally for 2 hours, then smoke is obtained. Alkali microcapsule suspension emulsion.

Embodiment 3

[0021] Example 3, adding 2 g of oily liquid nicotine, 0.2 g of calcium dodecyl benzene sulfonate, 0.2 g of phenethyl phenol polyoxyethylene polyoxypropylene ether, 2 g of rapeseed oil, 3 g of triphenyl ethyl phenol polyoxy Vinyl ether, 5g xylene, heat to 50℃, while stirring continuously, then add 14g water for use; add 7.5g gelatin and 7.5g starch gum to 92g water respectively for hydrolysis, respectively heat to 50℃, take the above hydrolyzed 15g each of the glue liquid is filtered, filtered, mixed and stirred evenly, 1g foaming agent is added, the uniformly stirred glue liquid is added to the prepared backup liquid, mixed and stirred at a speed of 200 rpm, at the same time naturally After cooling for 2 hours, the nicotine microcapsule suspoemulsion was obtained.

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PUM

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Abstract

A nicotine microseftgel suspension for green economic crops is prepared from nicotine, surfactant, plant oil, assistant, solvent, and water through hydrolizing two or more of animal glue, plant gum and gelatin of sea products to obtain hydrated substance, proportionally mixing said raw materials, heating to 50-80 deg.C, stirring, adding the heated said hydrated substance at 50-80 deg.C after filter, stirring at 200-600 rpm, and naturally cooling. Its advantages are slow photodegradation, and high durability.

Description

(1) Technical field: [0001] The invention relates to the technical field of pesticide formulations, in particular to a nicotine microcapsule suspoemulsion and a preparation method thereof. (2) Background technology: [0002] As we all know, nicotine is directly proposed from tobacco, which has the characteristics of high efficiency, low toxicity, and no residue. It is suitable for the application of pollution-free green food, but the nicotine itself decomposes when exposed to light and evaporates within half an hour in the sun. (3) Content of the invention: [0003] The purpose of the present invention is to overcome the above shortcomings of the prior art and provide a nicotine microcapsule suspoemulsion. [0004] Another object of the present invention is to provide a preparation method of nicotine microcapsule suspoemulsion. [0005] The invention mainly solves the problem of rapid decomposition of nicotine when exposed to light. [0006] Because the nicotine microcapsule sus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40
Inventor 张天良
Owner 仲伟德
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