Unlock instant, AI-driven research and patent intelligence for your innovation.

a mesoporous sio 2 Stable pickering emulsion and preparation method thereof

A mesoporous, emulsion technology, applied in chemical instruments and methods, chemical/physical processes, silicon oxide, etc., can solve problems such as Pickering emulsions that have not yet been seen, and achieve the effect of expanding the scope of application

Active Publication Date: 2021-03-02
NINGDE NORMAL UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no Pickering emulsion stabilized by mesoporous nanoparticles has been seen.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a mesoporous sio <sub>2</sub> Stable pickering emulsion and preparation method thereof
  • a mesoporous sio <sub>2</sub> Stable pickering emulsion and preparation method thereof
  • a mesoporous sio <sub>2</sub> Stable pickering emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The mesoporous SiO 2 The preparation method of stable Pickering emulsion, it comprises the following processing steps:

[0028] (1) Mesoporous SiO 2 Preparation: Using cetyltrimethylammonium chloride as a template and tetraethylorthosilicate as a silicon source, the mesoporous SiO was prepared in an alkaline medium. 2 ;

[0029] (2) Preparation of Pickering emulsion: dissolve the surfactant in water to form an aqueous surfactant solution, and then add mesoporous SiO to the aqueous surfactant solution 2 , ultrasonically disperse, then add the oil phase material and mix homogeneously to obtain the Pickering emulsion;

[0030] Wherein, the concentration of the aqueous surfactant solution is 0.6-3mmol / L; the volume ratio of the aqueous surfactant solution to the oil phase substance is 1:1; the mesoporous SiO 2 The weight is 0.1%-2% of the surfactant aqueous solution weight.

[0031] The specific operation method of step (1) is:

[0032] a. Dissolve the cetyltrimethyla...

Embodiment 1

[0039] Example 1: Mesoporous SiO 2 preparation of

[0040] a. Take a certain amount of CTAC (2.35g, 0.007mol) in an eggplant-shaped flask, dissolve it in deionized water (90.5g, 5.028mol), heat and stir until the solution is clear, and obtain hexadecyl trimethyl chloride Aqueous solution of ammonium chloride;

[0041] b. Weigh a certain amount of TEOS (8.5g, 0.040mol) and TEA (61.2g, 0.410mol), heat and mix at 95°C for 25min to obtain the initial mixture;

[0042] c. Add the initial mixed solution obtained in step b into the cetyltrimethylammonium chloride aqueous solution obtained in step a to obtain the final mixed solution; wherein, in the final mixed solution, tetraethyl orthosilicate, cetyl The molar ratio of trimethylammonium chloride, triethylamine and deionized water is 1:0.178:8:120; after that, the final mixed solution was stirred and reacted at room temperature for 3 hours to obtain a turbid solution, namely the crude product;

[0043] d. Wash the crude product o...

Embodiment 2

[0046] Example 2: Mesoporous SiO 2 preparation of

[0047] a. Take a certain amount of CTAC (2.18g, 0.0068mol) in an eggplant-shaped flask, dissolve it in deionized water (79.2g, 4.4mol), heat and stir until the solution is clear, and obtain hexadecyl trimethyl chloride Aqueous solution of ammonium chloride;

[0048] b. Weigh a certain amount of TEOS (8.3g, 0.040mol) and TEA (47.2g, 0.316mol), heat and mix at 90°C for 30min to obtain the initial mixture;

[0049] c. Add the initial mixed solution obtained in step b into the cetyltrimethylammonium chloride aqueous solution obtained in step a to obtain the final mixed solution; wherein, in the final mixed solution, tetraethyl orthosilicate, cetyl The molar ratio of trimethylammonium chloride, triethylamine and deionized water is 1:0.170:7.9:110;

[0050] Afterwards, the final mixed solution was stirred and reacted at room temperature for 5 hours to obtain a turbid solution, namely the crude product;

[0051] d. Wash the crud...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to a kind of by mesoporous SiO 2 Stable Pickering emulsion and preparation method thereof, described Pickering emulsion, it comprises surfactant aqueous solution, mesoporous SiO 2 And oil phase substance; Wherein, the concentration of described surfactant aqueous solution is 0.6-3mmol / L; The volume ratio of described surfactant aqueous solution and oil phase substance is 1:1; Described mesoporous SiO 2 Weight is 0.1%-2% of surfactant aqueous solution weight; The preparation of this Pickering emulsion comprises the following steps: (1) mesoporous SiO 2 (2) Preparation of Pickering emulsion; the present invention obtains mesoporous SiO by using CTAC as template agent 2 , and obtained mesoporous SiO modified by surfactant hydrophobization 2 Stable Pickering emulsion system, the emulsion system is stable for more than 100 days at room temperature.

Description

technical field [0001] The present invention relates to a kind of by mesoporous SiO 2 Stable Pickering emulsions and methods for their preparation. Background technique [0002] An emulsion is a dispersion system formed by dispersing one liquid in the form of liquid droplets in another liquid that is not compatible with it. Plays an important role in many industrial processes and commercial products. Traditional emulsions are generally stabilized by surfactants or amphiphilic polymers. However, surfactants are usually expensive and difficult to recycle. [0003] Pickering emulsion is a new type of emulsion that uses solid particles instead of surfactants as emulsifiers. Compared with traditional surfactant-stabilized emulsions, it has better thermodynamic stability, low toxicity, and is environmentally friendly. Among them, the solid powder used as emulsifier mainly includes clay, silicon dioxide, metal hydroxide, graphite, carbon black and so on. In Pickering emulsions...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/18B01F17/00C01B33/12C09K23/18C09K23/00
CPCC01B33/12C01P2004/03C09K23/00
Inventor 谢丹华张云金蒋遇龙
Owner NINGDE NORMAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com