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Preparation method of gel emulsion and low-density fluorescent porous metal complex material prepared by templating gel emulsion

A technology of gel emulsion and porous metal, applied in the direction of luminescent materials, chemical instruments and methods, etc.

Active Publication Date: 2021-05-07
XIAN UNVERSITY OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three stabilizers mentioned above are all compounds with a definite structure, and the method of preparing gel emulsion by using the compound generated by the in-situ reaction of two raw materials in the oil-water system as a stabilizer has not yet been seen.

Method used

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  • Preparation method of gel emulsion and low-density fluorescent porous metal complex material prepared by templating gel emulsion
  • Preparation method of gel emulsion and low-density fluorescent porous metal complex material prepared by templating gel emulsion
  • Preparation method of gel emulsion and low-density fluorescent porous metal complex material prepared by templating gel emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Dissolve 3.9g of the organic ligand shown in formula III-1 in 172g of p-xylene at 65°C, and dissolve 1g of terbium nitrate pentahydrate in 800g of distilled water, wherein the terbium nitrate pentahydrate, the organic ligand, and p-xylene The mass ratio is 1:3.9:172, the amount of distilled water is 82% of the total mass of distilled water and p-xylene, and the two solutions are mixed and stirred until a gel emulsion is formed.

[0042] The prepared gel emulsion was characterized by ISH500 optical microscope and AR-G2 rheometer, and the dried gel emulsion was characterized by S-3400N II type environmental scanning electron microscope. The results are shown in Figure 1~4 . Depend on figure 1 It can be seen that the prepared gel emulsion exhibits a typical gel emulsion microstructure, and the dispersed droplets squeeze each other to make its shape irregular; figure 2 It is the scanning electron microscope picture after the freeze-drying of the prepared gel emulsion, w...

Embodiment 2

[0044] Dissolve 3.9g of the organic ligand shown in formula III-1 in 175g of benzene at 65°C, and dissolve 1g of europium nitrate hexahydrate in 800g of distilled water, wherein the mass ratio of europium nitrate hexahydrate, organic ligand, and benzene is 1 : 3.9: 175, the amount of distilled water is 82% of the total mass of distilled water and benzene, and the two solutions are mixed and stirred until a gel emulsion is formed.

Embodiment 3

[0046] Dissolve 3.9g of the organic ligand shown in formula III-1 in 175g of toluene at 65°C, and dissolve 1g of terbium nitrate pentahydrate in 800g of distilled water, wherein the mass ratio of terbium nitrate pentahydrate, organic ligand, and toluene is 1 : 3.9: 173, the amount of distilled water is 82% of the total mass of distilled water and toluene, and the two solutions are mixed and stirred until a gel emulsion is formed.

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Abstract

The present invention discloses a preparation method of gel emulsion and low-density fluorescent porous metal complex material prepared by templating gel emulsion. The preparation method comprises the following steps: mixing a solution formed by dissolving an aromatic carboxylic acid type cholesterol derivative serving as an organic ligand in an oil phase with a solution formed by dissolving metal salts such as terbium nitrate and europium nitrate in a water phase; and using a complex formed by an in-situ self-assembly reaction of an organic ligand and metal ions on an oil-water interface as a stabilizer to obtain a W / O type gel emulsion, wherein the gel emulsion has reversible damage-recovery thixotropic performance. When an oil phase is a polymerizable monomer (such as styrene), the gel emulsion can be used as a template, a low-density fluorescent porous metal complex material is prepared through initiation polymerization of the oil phase, the material can be dried at room temperature, some high-energy-consumption means such as supercritical drying, freeze drying and the like and large professional equipment are not needed, and the material has the characteristics of simple preparation, excellent material performance, convenient processing and the like, and is easy to realize large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of preparation of gel emulsions, in particular to a method for preparing gel emulsions using a complex formed by an in-situ self-assembly reaction of an organic ligand and a metal ion at an oil-water interface as a stabilizer, and using the gel emulsion The emulsion is used as a template to prepare low-density porous metal complex materials. Background technique [0002] Gel emulsion is a gel-like three-component system formed by stabilizer, dispersed phase (internal phase) and continuous phase (external phase). Gel emulsion systems are also known as highly concentrated emulsions, biliquid foams, adhesive emulsions, and emulsions with structured continuous phases. For the traditional gel emulsion, when the volume fraction of the dispersed phase is greater than 74%, the shape of the dispersed phase droplets is no longer spherical but a random polyhedron due to the high packing. Irregular polyhedral droplet ...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F212/36C08K5/00C09K11/06
CPCC08F212/08C08K5/0091C09K11/06C09K2211/182C08F212/36
Inventor 薛敏刘晓翠孙平李朋娜
Owner XIAN UNVERSITY OF ARTS & SCI
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