Liquid type deet composition and preparation thereof

A composition and the technology of DEET, which are applied in the field of daily chemistry, can solve the problems of unstable solution system and difficulty in dissolving in water, and achieve good solution stability, small emulsified particles, and simple process production

Inactive Publication Date: 2014-05-28
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since DEET is an oily substance, it is not easy to dissolve in water, resulting in a relatively unstable solution system

Method used

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  • Liquid type deet composition and preparation thereof
  • Liquid type deet composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A water-based DEET composition is prepared by mixing 5% (mass percentage) of active components with water, wherein the effective components are obtained by mixing the content ratios of the components in Table 2.

[0020] Table 2 Active components and contents of the water-based DEET composition of Example 1

[0021] .

[0022] The preparation method of the aqueous type DEET composition of embodiment 1: put DEET, agricultural milk 600, AES, triethanolamine dodecylbenzenesulfonate into the stirring tank successively by the above-mentioned ratio in table 2, in Stir at a temperature of 20-30°C for 5-10 minutes, slowly add water to make a solution with an active component of 5% (mass percentage), continue stirring at a temperature of 30-60°C for 10-20 minutes, cool and stand to obtain A water-based DEET composition. The prepared product is safe and non-toxic, and the effective time of repelling mosquitoes is as long as 8 hours.

Embodiment 2

[0024] A water-based DEET composition is prepared by mixing 10% (mass percentage) of active components with water, wherein the effective components are obtained by mixing the content ratios of the components in Table 3.

[0025] Table 3 Active components and contents of the water-based DEET composition of Example 2

[0026] .

[0027] The preparation method of the water type DEET composition of embodiment 2: put DEET, OP-4, OP-10, AES, dodecylbenzenesulfonate triethanolamine salt into Stirring tank, stirring at a temperature of 20-30°C for 5-10 minutes, slowly adding water to make a solution with an effective component of 10% (mass percentage), and continuing stirring at a temperature of 30-60°C for 10-20 minutes, Cool and stand to obtain a water-based DEET composition. The prepared product is safe and non-toxic, and the effective time of repelling mosquitoes is as long as 12 hours.

Embodiment 3

[0029] A water-based DEET composition is prepared by mixing 20% ​​(mass percentage) of active components with water, wherein the active components are obtained by mixing the components according to the content ratios in Table 4.

[0030] Table 4 Active components and contents of the formulation DEET composition of Example 3

[0031] .

[0032] The preparation method of the water type DEET composition of embodiment 3: successively make DEET, OP-4, AEO-7, AES, octadecylamine polyoxyethylene ether diquaternary ammonium by the above-mentioned ratio in table 4 Put the salt into the mixing tank, stir for 5-10 minutes at a temperature of 20-30°C, slowly add water to make a solution with an effective component of 20% (mass percentage), continue stirring at a temperature of 30-60°C for 10- After cooling for 20 min, the water-type DEET composition was obtained. The prepared product is safe and non-toxic, and the effective time of repelling mosquitoes is as long as 17 hours.

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Abstract

The invention discloses a liquid type deet composition and a preparation method of the composition. The composition comprises the following main ingredients: water, deet, fatty alcohol polyoxyethylene ether sodium sulfate, triethanolammonium dodecylbenzene sulfonate, a nonionic surfactant and a cationic surfactant, and is prepared by adding the surfactant into deet, mixing and slowing adding water, and naturally emulsifying. The preparation method is simple in process, low in cost, environment-friendly; the composition has a mosquito repelling function.

Description

technical field [0001] The invention belongs to the field of daily chemistry, and in particular relates to a mosquito repellent composition and a preparation method thereof. Background technique [0002] DEET was developed by the United States in 1956 and is widely used around the world because of its broad-spectrum insect repellent effect and good repellent effect. However, when DEET crude oil is applied to the skin, it generally has disadvantages such as greasy, burning and bad smell, and even allergic reactions such as rash and peeling, so it needs to be processed into different application states (dosage forms) for safe use. [0003] Mosquito repellent dosage forms can be divided into three categories according to different phases. The first type is solid, which uses solid as a carrier to absorb mosquito repellents, including mosquito repellent powder, mosquito repellent paper, mosquito repellent tablets and other dosage forms. For example, the patent with publication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/86A61K8/42A61Q17/02
Inventor 郑庆康许晓锋郑进渠雷乐颜
Owner SICHUAN UNIV
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