Preparation method of microcapsule mosquito-repellent incense

A technology of microcapsules and mosquito-repellent liquid, which is applied in botany equipment and methods, preservation of human or animal bodies, and resistance to vector-borne diseases. To achieve the effect of changing high toxicity, lasting effect, and increasing compactness

Inactive Publication Date: 2016-10-26
HUANGSHAN LISHEN COMMODITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology has a fast release rate for mugwort, and the antibacterial and mosquito repellent effect is not good. The present invention improves its antibacterial and mosquito repellent effect

Method used

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  • Preparation method of microcapsule mosquito-repellent incense

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] (1) prepare respectively 150ml of the gelatin aqueous solution that mass concentration is 5% and the Arabic gum aqueous solution that mass concentration is 3%, and two kinds of solutions are mixed; The molecular weight of described gelatin is 50,000

[0028] (2) Add 4g of mugwort oil, 1g of perflumethrin, and 1g of walnut green husk extract into the mixed solution obtained in step (1), at a stirring speed of 300r / min, a stirring temperature of 30°C, and a stirring time of 20min. to obtain an emulsion;

[0029] (3) Add 70ml of deionized water to the emulsion obtained in step (2), and stir at 30°C for 40min at a stirring speed of 300r / min to obtain a dilution;

[0030] (4) Adjust the pH value of the diluted solution obtained in step (3) to 3.8 to obtain a prepolymerized solution;

[0031] (5) Under the condition that the stirring speed is 300r / min, reduce the temperature of the prepolymerized liquid obtained in step (4) to 0°C, and keep it warm for 40min to obtain the co...

example 2

[0035] (1) preparation mass concentration is respectively 250ml of 7% gelatin aqueous solution and 5% gum arabic aqueous solution, and two kinds of solutions are mixed; The molecular weight of described gelatin is 250,000

[0036] (2) Add 8g of mugwort oil, 4g of perflumethrin, and 3g of walnut green husk extract into the mixed solution obtained in step (1), at a stirring speed of 500r / min, a stirring temperature of 60°C, and a stirring time of 40min, to obtain an emulsion;

[0037] (3) Add 150ml of deionized water to the emulsion obtained in step (2), and stir at a stirring speed of 500r / min for 60min to obtain a dilution;

[0038] (4) Adjust the pH value of the diluted solution obtained in step (3) to 5.0 to obtain a prepolymerized solution;

[0039] (5) Under the condition of a stirring speed of 500r / min, reduce the temperature of the pre-polymerized liquid obtained in step (4) to 5°C, and keep it warm for 60 minutes to obtain a coagulated liquid;

[0040] (6) Add 1 g of ...

example 3

[0043] (1) preparation mass concentration is respectively 200ml of the gelatin aqueous solution of 6% and the Arabic gum aqueous solution of 4% in mass concentration, and two kinds of solutions are mixed; The molecular weight of described gelatin is 150,000

[0044] (2) Add 6g mugwort oil, 2.5g perflumethrin, and 2g walnut green husk extract to the mixed solution obtained in step (1), stir at a stirring speed of 400r / min, a stirring temperature of 45°C, and a stirring time of 30min , to obtain an emulsion;

[0045] (3) Add 110ml of deionized water to the emulsion obtained in step (2), and stir at a stirring speed of 400r / min for 50min to obtain a dilution;

[0046] (4) Adjust the pH value of the diluted solution obtained in step (3) to 4.5 to obtain a prepolymerized solution;

[0047] (5) Under the condition of a stirring speed of 400r / min, reduce the temperature of the pre-polymerized liquid obtained in step (4) to 2.5°C, and keep it warm for 50 minutes to obtain a coagulate...

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Abstract

The invention provides a preparation method of microcapsule mosquito-repellent incense. A gelatin aqueous solution and an Arabic gum aqueous solution are adopted, and the two solutions are mixed; wormwood oil, dimefluthrin, walnut green husk extract liquid are added to the mixed solution obtained in step 1, the wormwood oil is mixed with and dispersed in the mixed solution, and emulsified liquid is obtained; deionized water is added to the emulsified liquid obtained in step 2 and stirred, and diluent is obtained; 3, the pH value of the diluent is regulated to 3.8-5.0, and pre-polymerization liquid is obtained; the temperature of the pre-polymerization liquid obtained in step 4 is naturally lowered to 0-5 DEG C, and the temperature is maintained for 40-60 minutes, and condensed liquid is obtained; 0.5-1 g of soluble starch, 1-2 g of itaconic acid and 2-5 g of a cross-linking curing agent are added to the obtained condensed liquid and mixed to be uniform, and microcapsule mosquito-repellent incense liquid is obtained. The mosquito-repellent incense liquid is durable in function and good in anti-bacterial effect.

Description

technical field [0001] The invention improves a preparation method of mosquito-repellent incense, in particular a preparation method of microcapsule mosquito-repellent incense. Background technique [0002] Mugwort is a perennial wild herb of the genus Artemisia in the family Asteraceae. There are many kinds of physiologically active components of mugwort essential oil extracted from it, among which many monoterpenes and sesquiterpenes have antibacterial and mosquito repellent properties. As a natural, Environmentally friendly antibacterial and antifungal agent, in line with people's concept of green consumption. However, due to the instability of mugwort essential oil, the duration of its medicinal effect is short, which limits its application. The microcapsule technology coats the essential oil to release it slowly through the capsule wall, improving the pressure sensitivity, photosensitivity and heat sensitivity of mugwort essential oil, and improving product grade and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N65/12A01N53/06A01N25/18A01N25/10A01P17/00A01P1/00A01P3/00
CPCA01N25/10A01N25/18A01N25/28A01N53/00A01N65/00A01N65/12A01N2300/00Y02A50/30
Inventor 程家利
Owner HUANGSHAN LISHEN COMMODITY
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