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A kind of water-in-oil-in-water composite emulsion and preparation method thereof

A water-in-oil-in-water, composite emulsion technology, which is applied in mixing methods, chemical instruments and methods, transportation and packaging, can solve the problems of cumbersome preparation methods and the inability to adjust the emulsion spontaneously, and achieve simple preparation methods and good emulsification The effect of action

Active Publication Date: 2020-01-24
JIANGSU FEYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention are: one, the preparation method of the compound emulsion in the prior art is relatively loaded down with trivial details;

Method used

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Examples

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preparation example Construction

[0033] The invention provides a preparation method of a water-in-oil-in-water composite emulsion, comprising the following steps:

[0034] A. Add low cloud point emulsifier, high cloud point emulsifier and co-emulsifier to silicone oil, and heat and melt to obtain oil phase;

[0035] In this step, the container used to hold the oil phase is not limited, it can be a flask or a flask, and the heating method is also not limited, it can be heated by a water bath, or it can be directly heated by electricity;

[0036] B. Deionized water is added dropwise to the oil phase to obtain a first mixture, and the deionized water is added dropwise for 1-2.5h, and in the dropwise state, the temperature of the first mixture is kept at the first temperature, and all the first mixture is stirred;

[0037] In this step, the method or method of dropwise addition of deionized water is not limited, and a constant speed pump can be used for dropwise addition, or a burette can be used; in the dropwis...

Embodiment 1

[0048] 15g of fatty alcohol and ethylene oxide condensate type emulsifier AEO-7, 30g fatty alcohol and ethylene oxide condensate type emulsifier O-20, 6g cetyl alcohol, and 72g methyl silicone oil were weighed with an electronic scale and placed In a 1000ml three-necked flask, heat the three-necked flask in a water bath to 60°C to melt and mix the silicone oil and the emulsifier evenly to serve as the oil phase;

[0049] The well-mixed oil phase water bath was heated to 85°C, and then 471 g of deionized water was added dropwise to the oil phase under the condition of magnetic stirring at a rotational speed of 500 r / min for the oil phase for 2 hours.

[0050] After the dropwise addition, the temperature of the oil phase was kept at 85°C, and the stirring was continued for 2 hours at a speed of 500 r / min;

[0051] Then add 6g of alkylphenol and ethylene oxide condensate emulsifier TX-7 to the oil phase, stir at 500r / min for 25min, then reduce the speed to 200r / min and continue s...

Embodiment 2

[0056] Use an electronic scale to weigh 18g castor oil and ethylene oxide condensate emulsifier EL-40, 36g castor oil and ethylene oxide condensate emulsifier EL-60, 4.8g polyethylene glycol 8000, 60g phenyl The silicone oil was placed in a 1000ml three-necked flask, and the three-necked flask was heated to 60°C in a water bath, so that the silicone oil and the emulsifier were melted and mixed evenly, as the oil phase;

[0057] The well-mixed oil phase water bath was heated to 87°C, and then 472.2 g of deionized water was added dropwise to the oil phase while maintaining the oil phase under the condition of magnetic stirring at a rotational speed of 500 r / min for 2.5 hours.

[0058] After the dropwise addition, the temperature of the oil phase was kept at 85°C, and the stirring was continued for 1 h at a speed of 500 r / min;

[0059] Subsequently, 9g of alkylphenol polyoxyethylene ether emulsifier SOPE-4 was added to the oil phase, stirred at 500r / min for 30min, then lowered to...

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Abstract

The invention relates to a water-in-oil-in-water composite emulsion and a preparation method thereof. The preparation method comprises the following steps: preparing an oil phase, adding deionized water dropwise, adding an emulsifier regulator, cooling and stirring and adding a pH buffer solution in five steps . The preparation method of the water-in-oil-in-water composite emulsion provided by the invention is simple, and the times of emulsification are simplified, and only one emulsification is required.

Description

technical field [0001] The invention relates to the technical field of emulsion preparation, in particular to a water-in-oil-in-water composite emulsion and a preparation method thereof. Background technique [0002] Emulsion, a mixture of incompatible two-phase liquids, in which one-phase liquid is dispersed in the other-phase liquid in the form of droplets is an emulsion. Emulsions can be divided into oil-in-water (O / W) emulsions, water-in-oil (W / O) emulsions, and composite emulsions (water-in-oil-in-water or water-in-oil emulsions) according to the type, nature, and phase volume ratio of the emulsifier. oil) three kinds. [0003] The common preparation method of composite emulsion in the prior art is a two-step emulsification method. Take the water-in-oil-in-water composite emulsion as an example: in the first step, water, oil and emulsifier are emulsified to form a water-in-oil primary emulsion; In the aqueous phase, a water-in-oil-in-water composite emulsion is prepa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/08
CPCB01F23/4141B01F23/4105B01F23/41
Inventor 王勤岳凯魏星光何国锋
Owner JIANGSU FEYMER TECH
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