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Tea tree oil microcapsules and preparation method and application thereof

A technology of tea tree oil and microcapsules, applied in the direction of microcapsules, botany equipment and methods, applications, etc., can solve the problems of tea tree oil such as volatilization, instability, inconvenient transportation, storage and use, etc., to overcome the volatile and Unstable, high drug loading, smooth and plump particles

Active Publication Date: 2016-11-09
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, tea tree oil is volatile, unstable and inconvenient for transportation, storage and use

Method used

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  • Tea tree oil microcapsules and preparation method and application thereof
  • Tea tree oil microcapsules and preparation method and application thereof
  • Tea tree oil microcapsules and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of tea tree oil microcapsules:

[0043] S1. Weigh 30g of urea, 70.9g of formaldehyde and 126g of water in a three-necked flask, adjust the pH of the system to 8 with triethanolamine, heat in an oil bath at 70°C for 1h, and the obtained colorless liquid is urea-formaldehyde resin prepolymer .

[0044] S2. Weigh 12g of urea-formaldehyde resin prepolymer, put 0.48g of sodium lauryl sulfate in a beaker adding 20ml of water, stir with a magnetic stirrer for 15min under normal temperature conditions, and the rotating speed is 1000r / min to obtain the first mixture;

[0045] S3.1) Dissolve 3g of tea tree oil in 6g of absolute ethanol, and dropwise dropwise into the first mixture, adjust the rotating speed of the magnetic stirrer to 800r / min, and stir for 15min; 2) Then adjust the pH of the system to 5, and continue to stir 15min; 3) Adjust the rotational speed to 300r / min and adjust the pH of the system to 3. After stirring for 15 minutes, continue to adju...

Embodiment 2～4

[0048] The main steps of Examples 2-4 are the same as those of Example 1, the difference lies in the process conditions of steps S1-S4, and the specific parameters are shown in Table 1.

[0049] Table 1

[0050]

[0051]

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PUM

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Abstract

The invention relates to the technical field of modified materials, and discloses tea tree oil microcapsules and a preparation method thereof. The preparation method comprises the steps that 2, a urea-formaldehyde resin prepolymer obtained in the step 1, lauryl sodium sulfate and water are taken to be stirred to be uniform at room temperature, and a first mixture is obtained; 3, tea tree oil is taken to be dissolved into absolute ethyl alcohol, mixed liquid is slowly added into the first mixture, stirring is conducted for 10-20 min, the system pH and a stirring process are regulated, a system is heated to 30 DEG-35 DEG C, solidification is conducted for 80-120 min, and then filtering is conducted to obtain an intermediate product, wherein the mass ratio of the urea-formaldehyde resin prepolymer to the tea tree oil to absolute ethyl alcohol is (8-15):(1-5):(3-6), and the mass of lauryl sodium sulfate accounts for 1%-4% of the total mass of the urea-formaldehyde resin prepolymer. According to the preparation method, the defects that the tea tree oil is volatile and unstable can be effectively overcome, and the prepared tea tree oil microcapsules are uniform in particle size distribution, smooth and full in particle, high in drug loading rate and good in slow-release effect.

Description

technical field [0001] The invention relates to the technical field of microcapsules, more specifically, to a tea tree oil microcapsule and its preparation method and application. Background technique [0002] Tea tree oil is an aromatic essential oil obtained by distillation from the branches and leaves of the Melaleuca genus. It contains hundreds of chemical components and is a very complex natural mixture. Its basic components are roughly divided into four categories: ①Terpene compounds: they are the main chemical components of plant essential oils, and their molecular formula is a chain of isoprene structural units. Shaped or cyclic olefins have a simple multiple relationship with isoprene, and the general formula can be written as (C 5 h 8 )n. There are many types of terpenes, and there are many isomers. According to their structures, they can be divided into semiterpenes, monoterpenes (such as pinene, limonene, myrcene, camphene), sesquiterpenes (such as gingerene),...

Claims

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Application Information

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IPC IPC(8): A61K36/61A61K9/50A61P31/04A61P31/10A23B7/154A23P10/30A01N65/28A01N25/28A01P1/00A01P3/00
CPCA01N25/28A01N65/00A01N65/28A23B7/154A23V2002/00A61K9/5031A61K36/61A23V2250/21A23V2250/51082A23V2250/30A01N2300/00
Inventor 龚圣周新华廖海艳
Owner ZHONGKAI UNIV OF AGRI & ENG
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