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High-efficiency composite emulsifying agent and preparation method of O/W nanometer emulsion by high-efficiency composite emulsifying agent

A composite emulsifier and nanoemulsion technology, applied in mixing methods, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of cost reduction, low emulsifier dosage, and simple synthesis

Active Publication Date: 2017-12-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is almost no report about the preparation of paraffin nanoemulsions with an average particle size of 10 nm or less at a ratio of 1:1 to oil in the above-mentioned patent documents.

Method used

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  • High-efficiency composite emulsifying agent and preparation method of O/W nanometer emulsion by high-efficiency composite emulsifying agent
  • High-efficiency composite emulsifying agent and preparation method of O/W nanometer emulsion by high-efficiency composite emulsifying agent
  • High-efficiency composite emulsifying agent and preparation method of O/W nanometer emulsion by high-efficiency composite emulsifying agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Based on 100 parts by weight, the following components were weighed: 20 parts of liquid paraffin, 8 parts of amphiphilic supramolecular compounds, 0.16 parts of sodium dodecylbenzenesulfonate (SDBS), and 71.84 parts of water.

[0025] The amphiphilic supramolecular compound is synthesized by the following method: Stir and mix oleic acid and polyetheramine D230 at a molar ratio of 2:1 to obtain the amphiphilic supramolecular compound, which appears as a light yellow viscous liquid. The stirring and mixing is continuous stirring on a magnetic stirrer at a speed of 200-400 rpm for 1-2 hours.

[0026] Nanoemulsions were prepared by phase inversion composition method (PIC):

[0027] Sodium dodecylbenzenesulfonate (SDBS) was added to water to make an aqueous surfactant solution, which was heated to 65°C; liquid paraffin and amphiphilic supramolecular compounds were heated to 65°C in another reactor, and Stir at 800 rpm to form an oil mixture; add the aqueous surfactant solut...

Embodiment 2

[0042] Based on 100 parts by weight, 18 parts of liquid paraffin, 3 parts of amphiphilic supramolecular compound, 0.12 part of sodium dodecylbenzenesulfonate (SDBS), and 78.88 parts of water were weighed.

[0043] The amphiphilic supramolecular compound is synthesized by the following method: Stir and mix oleic acid and polyetheramine D230 at a molar ratio of 2:1 to obtain the amphiphilic supramolecular compound, which appears as a light yellow viscous liquid. The stirring and mixing is continuous stirring on a magnetic stirrer at a speed of 200-400 rpm for 1-2 hours.

[0044] Prepare the nanoemulsion by the phase inversion composition method (PIC) described in embodiment 1, the properties of the nanoemulsion of the present embodiment are as follows:

[0045] Lotion Appearance

Embodiment 3

[0047] Based on 100 parts by weight, weigh 1 part of white oil, 5 parts of amphiphilic supramolecular compound, 0.5 part of sodium dodecylbenzenesulfonate (SDBS), and 84.9 parts of water.

[0048] The amphiphilic supramolecular compound is synthesized by the following method: Stir and mix oleic acid and polyetheramine D230 at a molar ratio of 2:1 to obtain the amphiphilic supramolecular compound, which appears as a light yellow viscous liquid. The stirring and mixing is continuous stirring on a magnetic stirrer at a speed of 200-400 rpm for 1-2 hours.

[0049] The phase inversion composition method (PIC) was used to prepare nanoemulsions, adding sodium dodecylbenzenesulfonate (SDBS) into water to make an aqueous surfactant solution, which was heated to 40°C; liquid paraffin and amphiphilic supramolecular compounds were mixed in Heat to 40°C in another reactor and stir at 20 rpm to form an oil mixture; add the aqueous surfactant solution to the oil mixture, continue stirring, a...

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Abstract

The invention relates to a high-efficiency composite emulsifying agent and a preparation method of an O / W nanometer emulsion by the high-efficiency composite emulsifying agent. The high-efficiency composite emulsifying agent is prepared by compounding an anionic surfactant and an amphiphilic supermolecular compound. The preparation method of the O / W nanometer emulsion by the high-efficiency composite emulsifying agent comprises the following steps of mixing an oil phase and the amphiphilic supermolecular compound, heating, and uniformly stirring, so as to form an oil mixed solution; uniformly mixing water and the anionic surfactant, and heating, so as to form a surfactant water solution; adding the surfactant water solution into the oil mixed solution, stirring, and emulsifying; or, mixing the components together, heating, stirring and emulsifying. The O / W nanometer emulsion with the stable composite emulsifying agent has excellent stability, and the demulsifying cannot occur after the O / W nanometer emulsion is placed at room temperature for half a year. When the nanometer emulsion with same average particle size is prepared, the usage amount of the composite emulsifying agent is only equal to 30% to 60% of the usage amount of other common emulsifying agent; the smaller the particle size of the prepared emulsion is, more efficient the composite emulsifying agent is; the preparation cost of the O / W nanometer emulsion is greatly reduced.

Description

technical field [0001] The invention relates to a high-efficiency composite emulsifier for preparing O / W (oil-in-water type) nanoemulsions by a low-energy method, and belongs to the field of colloid and interface chemistry. Background technique [0002] Nanoemulsion is an emulsion whose droplet size distribution is 20-500nm, and its particle size is very small, so it will not break after being left for a long time. Especially when the particle size is close to 100nm, the emulsion is usually a transparent or translucent liquid with high bioavailability. Compared with traditional emulsions, nanoemulsions have outstanding advantages and are gradually being applied in the fields of medicine, cosmetics and food. [0003] According to the energy input in the preparation process, the preparation methods of nanoemulsions can be divided into high-energy methods and low-energy methods. High-energy methods usually use machinery, such as ultrasonic machines, high-pressure homogenizers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/42B01F17/12B01F3/08C09K23/42C09K23/12
CPCB01F23/414B01F23/4105C09K23/017
Inventor 孙德军胡润涛董志浩
Owner SHANDONG UNIV
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