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Aromatic antibacterial microcapsule with carbon skeleton and preparation method thereof

A carbon skeleton and microcapsule technology, applied in the field of microcapsule preparation, can solve the problems of high sealing performance of autoclave, long experiment period and high cost, and achieve the effects of improving the slow-release performance of fragrance, preventing shedding loss and improving mechanical strength.

Active Publication Date: 2019-11-12
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, supercritical drying needs to use an autoclave, and the autoclave requires high sealing.
Moreover, the experimental cycle required by the supercritical drying process is relatively long, the output is low, and the cost is high.

Method used

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  • Aromatic antibacterial microcapsule with carbon skeleton and preparation method thereof
  • Aromatic antibacterial microcapsule with carbon skeleton and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046](1) Take 10g of lily pollen, soak it in 400mL of methanol and water mixed solution with a volume ratio of 3:1 for 2h, and dry it under vacuum at 80°C, then calcinate the dried pollen grains in a nitrogen atmosphere at 400°C 2h, making hollow carbon skeleton particles;

[0047] (2) Take 190 μL of 0.1mol / L AgNO 3 The solution, 10mL of water and 15mL of orientalis extract were added to the conical flask, and 0.1g of the carbon skeleton particles in (1) was added. Under the condition of 90°C oil bath, the reaction was stirred by magnetic force for 2h, suction filtered, and dried at 80°C for 12h , to make silver-loaded hollow carbon skeleton particles;

[0048] (3) Take 1g of gelatin, add 100mL of deionized water, and fully dissolve it in a water bath at 40°C; take another 1g of gum arabic, add 100mL of deionized water, and fully dissolve it under the same conditions;

[0049] (4) Take 6g of rose essence, add 0.1g of silver-loaded hollow carbon skeleton particles dried in (...

Embodiment 2

[0053] (1) Take 10 g of sweet-scented osmanthus pollen, soak it in 400 mL of methanol and water mixed solution with a volume ratio of 3:1 for 2 h, and dry it under vacuum at 80 °C, then calcinate the dried pollen grains at 300 °C in a nitrogen atmosphere 3h, making hollow carbon skeleton particles;

[0054] (2) Take 380 μL of 0.1mol / L AgNO 3 The solution, 15mL of water and 20mL of orientalis extract were added to the conical flask, and 0.2g of the carbon skeleton particles in (1) was added. Under the condition of 90°C oil bath, the reaction was stirred by magnetic force for 2h, suction filtered, and dried at 80°C for 12h , to make silver-loaded hollow carbon skeleton particles;

[0055] (3) Take 1g of gelatin, add 100mL of deionized water, and fully dissolve it in a water bath at 40°C; take another 1g of gum arabic, add 100mL of deionized water, and fully dissolve it under the same conditions;

[0056] (4) Take 8g of rose essence, add 0.2g of silver-loaded hollow carbon skel...

Embodiment 3

[0060] (1) Take 10 g of morning glory pollen, soak it in 400 mL of a mixed solution of methanol and water with a volume ratio of 3:1 for 2 hours, and dry it under vacuum at 80°C, then place the dried pollen grains in a nitrogen atmosphere at 200°C Medium calcination for 4 hours to make hollow carbon skeleton particles;

[0061] (2) Take 247 μL of 0.1mol / L AgNO 3 The solution, 12mL of water and 12mL of orientalis extract were added to the conical flask, and 0.13g of the carbon skeleton particles in (1) were added. Under the condition of 90°C oil bath, the reaction was stirred by magnetic force for 2h, suction filtered, and dried at 80°C for 12h , to make silver-loaded hollow carbon skeleton particles;

[0062] (3) Take 1g of gelatin, add 100mL of deionized water, and fully dissolve it in a water bath at 40°C; take another 1g of gum arabic, add 100mL of deionized water, and fully dissolve it under the same conditions;

[0063] (4) Take 10 g of rose essence, add 0.13 g of silve...

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Abstract

The invention provides an aromatic antibacterial microcapsule with a carbon skeleton and a preparation method thereof. In the invention, essence oil is used as a core material, natural polymer gelatinand Arabic gum are used as wall materials, and the antibacterial carbon skeleton aromatic microcapsule is prepared through a complex coacervation method. The preparation method comprises the following steps: firstly, treating plant pollen, calcining the pollen into a hollow carbon skeleton, and supporting silver nanoparticles on the surface of the carbon skeleton through a sol supporting method;then dispersing and coating the core material essence essential oil in the hollow carbon skeleton; and finally, gradually depositing gelatin and Arabic gum on the surface of the carbon skeleton to coat the core material, and adding a cross-linking agent for curing the material to form the long-acting slow-release aromatic antibacterial microcapsule with a stable structure. The carbon skeleton microcapsule prepared by the invention has aromatic odor and antibacterial property, and has the characteristics of environmental protection, no toxicity, slow release, bacteriostasis, good mechanical strength, good heat resistance and the like. According to the preparation method, the application stability of the essence microcapsules is improved, and the service life is prolonged.

Description

[0001] (1) Technical field [0002] The invention relates to a microcapsule with aromatic smell and antibacterial performance and a preparation method thereof, in particular to an aromatic antibacterial microcapsule with a carbon skeleton support layer and a preparation method thereof, belonging to the technical field of microcapsule preparation. [0003] (2) Background technology [0004] With the development of economy and progress of society, great changes have taken place in the way of life and living environment of human beings. People's requirements for various commodities have also changed from the practical type in the past to the decoration, enjoyment, and health care type. It is not only required to obtain the enjoyment of beauty in vision, but also to pursue pleasant satisfaction in smell. Fragranced products with a variety of aromatic smells are quietly emerging, and people find that fragrances can relieve tension, relieve stress and stimulate people's excitement. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/10A61L9/012A61L9/013A01N59/16A01N25/28A01P1/00A01P3/00A61L101/56
CPCB01J13/10A61L9/012A61L9/013A01N59/16A01N25/28A61L2209/21
Inventor 李雄李畅张国亮
Owner ZHEJIANG UNIV OF TECH
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