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High temperature resistant nano emulsion and low energy consumption preparation method thereof

A technology of nanoemulsion and high temperature resistance, which is applied in the field of nanoemulsion and its low-energy preparation. It can solve the problems of lowering the phase transition temperature and failing to increase the charge capacity of negatively charged nanoemulsions, and achieves adjustable charges, low equipment prices, and energy saving. The effect of consumption

Inactive Publication Date: 2014-01-15
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two methods only carry out research on the mixed system of cationic surfactants and nonionic surfactants, and obtain positively charged nanoemulsions with higher charge, but cannot improve the charge amount of negatively charged nanoemulsions; in addition, "A Low-Energy Preparation Method for Positively Charged Nanoemulsions" The inorganic salt added during the preparation of positively charged nanoemulsions reduces the phase transition temperature of the system, and the obtained nanoemulsions need to be placed at lower temperatures to maintain stability

Method used

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  • High temperature resistant nano emulsion and low energy consumption preparation method thereof
  • High temperature resistant nano emulsion and low energy consumption preparation method thereof
  • High temperature resistant nano emulsion and low energy consumption preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Prepare a high-temperature-resistant positively charged nanoemulsion with an average particle size of 40-60nm and a zeta potential of -40mV-+40mV. The following components are weighed in 100 parts by weight: 10 parts of liquid paraffin, 10 parts of nonionic surfactant (combination of 5.6 parts of Tween20 and 4.4 parts of Span20), 0.2 parts of cationic surfactant CTAB, and 79.8 parts of water.

[0022] Mix 0.2 parts of CTAB, 5.6 parts of Tween20, 4.4 parts of Span20 and 10 parts of liquid paraffin to prepare a surfactant oil solution, and heat it to 80°C under stirring at a speed of 400rpm; heat water to 80°C in another reactor ℃, within 10 minutes (minutes), add water dropwise to the oil solution of the surfactant, stop stirring and transfer the reactor from the water bath to room temperature to cool down to obtain a high temperature resistant positively charged nanoemulsion.

[0023] The stability, mechanical stability, freeze-thaw stability and high temperature stabil...

Embodiment 2

[0036] Prepare a high-temperature-resistant positively charged nanoemulsion with an average particle size of 100-250nm and a zeta potential of +15mV-+50mV. The following components are weighed in 100 parts by weight: 25 parts of liquid paraffin, 10 parts of nonionic surfactant ( Combination of 6.2 parts of Brij30 and 3.8 parts of Span85), 0.1 part of cationic surfactant STAB, 64.9 parts of water.

[0037] According to the preparation method described in Example 1, the high-temperature-resistant positively charged nanoemulsion of the present embodiment is prepared, and the experimental data of its properties are shown in the following table:

[0038]

Embodiment 3

[0040] The preparation average particle size is at 40-100nm, and zeta potential is the high temperature resistant negative charge nanoemulsion of-37mV--50mV, with 100 parts by weight, takes by weighing 20 parts of white oil, 20 parts of nonionic surfactants (11 parts of Tween60 and A combination of 9 parts of Span60), 0.5 parts of anionic surfactant SDS, and 59.5 parts of water.

[0041] Prepare the high-temperature-resistant negatively charged nanoemulsion of the present embodiment according to the preparation method described in Example 1, and the experimental data of its properties are shown in the following table:

[0042]

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Abstract

The invention discloses a high temperature resistant nano emulsion and a low energy consumption preparation method thereof. Each 100 parts by weight of the high temperature resistant nano emulsion comprises 10-40 parts of oil phase, 2-30 parts of a nonionic surfactant, 0.01-5 parts of ionic surfactant and the balance of water. The preparation method comprises the following steps: mixing the oil phase with the nonionic surfactant so as to be an oil solution of the surfactant, heating and stirring; at the same time, heating water separately; adding the ionic surfactant into the oil solution of the surfactant, adding the ionic surfactant into the water, or standing by the ionic surfactant for later use; adding the water into the oil solution of the surfactant, emulsifying, subsequently stopping stirring and naturally cooling to be the room temperature so as to obtain the high temperature resistant nano emulsion. The method is simple to operate, not only can the electric quantity of positive nano emulsion be regulated and controlled on premise that the size of nano emulsion droplet is not affected, but also the electric quantity of negative nano emulsion can be regulated and controlled, and the nano emulsion has high temperature characteristics.

Description

technical field [0001] The invention relates to an emulsion and a preparation method thereof, in particular to a high-temperature-resistant nanoemulsion and a low-energy preparation method thereof. Background technique [0002] Nanoemulsion is an emulsion whose droplet diameter is nanoscale. When the particle size is less than 100nm, the appearance of the emulsion is usually a transparent or translucent liquid, which can not delaminate or flocculate for a relatively long time. Because of these properties, the study of nanoemulsions has received extensive attention and has been gradually applied in the fields of medicine, cosmetics, and food. [0003] Since nanoemulsions are thermodynamically unstable systems that cannot form spontaneously, energy input is required during the preparation process. According to the amount of input energy, the preparation methods of nanoemulsions can be divided into high-energy methods and low-energy methods. The high-energy method can be used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/08B82Y30/00B82Y40/00
Inventor 孙德军于丽杰郝京诚童坤
Owner SHANDONG UNIV
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