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Rod-shaped material with surface having multiple properties and manufacturing method and application of Pickering emulsion thereof

A technology of rod-shaped and metal materials, applied in the direction of nanotechnology for materials and surface science, nanostructure manufacturing, manipulation of single atoms, etc., can solve the problems that cannot meet actual needs, are difficult to meet actual needs, and have low efficiency and output. , to achieve the effect of smooth end surface, uniform scale, simple and feasible steps

Inactive Publication Date: 2014-07-23
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scale of the Janus rods prepared by this method is within the molecular scale range, and the yield is low, which cannot meet the actual needs; 3. The rod-shaped Janus colloids are prepared by electrodeposition of carbon nanotubes. This method has low efficiency and yield, and The cost is very high, and it is difficult to meet the actual needs

Method used

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  • Rod-shaped material with surface having multiple properties and manufacturing method and application of Pickering emulsion thereof
  • Rod-shaped material with surface having multiple properties and manufacturing method and application of Pickering emulsion thereof
  • Rod-shaped material with surface having multiple properties and manufacturing method and application of Pickering emulsion thereof

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Experimental program
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Effect test

preparation example Construction

[0076] According to the preparation method of nanorod array slice b, only the electrolyte solution was replaced with 40.0 mL of deionized water, 4.0 g of ferrous sulfate heptahydrate, 0.6 g of ammonium sulfate, 1.2 g of magnesium sulfate, 0.04 g of antacid An electrolyte composed of 80 uL of triol and dilute sulfuric acid with a concentration of 1M, and the pH value of the electrolyte is adjusted to 3 with 1M dilute sulfuric acid;

[0077] And the potential E is replaced by 2.5V, and the Fe nanowires with a length of 10um dispersed in the alumina template are obtained. The electron micrograph is as follows figure 2 g shown.

[0078] The nanorod array slice d used in the following embodiment 4 is prepared according to the following method:

[0079] According to the preparation method of the nanorod array slice b, only the electrolyte solution was replaced with an electrolyte solution consisting of 25.0ml of deionized water, 5.26g of nickel sulfate hexahydrate, 0.75g of boric ...

Embodiment 1

[0082] 1) Emulsify the nanorod array slice a with Pickering particles:

[0083] The slices were first treated with organic solvents to improve their hydrophilic and lipophilic properties, and then the nanorod array slice a was placed in a Pickering emulsion composed of paraffin and water with a mass ratio of 1:10 for high-speed shear emulsification. High-speed shear emulsification in the system, using the Pickering effect of slices to form a stable emulsion. The obtained Pickering emulsion system is cooled and washed to obtain a paraffin ball wrapped in nanorod array section a, which is the ball material provided by the invention, and its electron micrograph is as follows figure 2 b;

[0084] The ball material is composed of silica nanorod array slices and paraffin solid spheres; wherein, the silica nanorod array slices wrap the paraffin solid spheres; the silica nanorod array slices are composed of silica nanorods and a matrix; The silicon nanorods have a length of 400nm a...

Embodiment 2

[0093] 1) step 1) is the same as step 1) of embodiment 1);

[0094] Only replace the nanorod array slice a used in step 1) with the nanorod array slice b;

[0095] The ball material is composed of gold nanorod array slices and paraffin solid balls; wherein, the gold nanorod array slices wrap the paraffin solid balls; the gold nanorod array slices are composed of gold nanorods and matrix; Uniformly dispersed in the matrix PMMA.

[0096] 2) Put the paraffin sphere wrapped in the nanorod array slice b obtained in step 1) in deionized water and SH-PEG (the concentration of SH-PEG in the reaction system is 5mM) on a shaker at room temperature for complexation Coordination reaction for 6 hours, to obtain rod A 1 Type B material ball;

[0097] 3) The stick A obtained in step 2) 1 B-type material balls were dissolved in tetrahydrofuran to remove paraffin, placed in deionized water and SH-PS (the concentration of SH-PS in the reaction system was 5mM) on a shaker at room temperature...

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Abstract

The invention discloses a rod-shaped material with a surface having multiple properties and a manufacturing method and application of Pickering emulsion of the material. The material is composed of a nanorod and discs at the two ends of the nanorod, wherein the diameter of each disc is equal to the diameter of the two end faces of the nanorod, the material forming the nanorod is marked as the material B, the materials forming the discs at the two ends of the nanorod are different and are marked as the material A1 and the material A2 respectively, the material B is selected from at least one of an inorganic material and a metal material, and the material A1 and the material A2 are made of polymer. According to the rod-shaped material, a fiber array manufactured through a die plate method passes through an ultrathin section to obtain rod-shaped nano materials with the uniform size, and then the nano materials are combined with a Pickering emulsion protection-deprotection method to form the rod-shaped material. According to the method, the manufactured number of rod-shaped nano materials can be obviously increased, and the rod-shaped materials have the great potential in biological applications such as a superstructure with the functional surface and the complex assembly and amphiphilic molecular simulation.

Description

technical field [0001] The invention relates to a rod-shaped material with multiple properties on the surface and a preparation method and application of the Pickering emulsion. Background technique [0002] As early as the beginning of the last century, Pickering (J. Soc. Chem. Ind. 1910, 91, 2001-2021) found that fine solid particles can be used as emulsion stabilizers, referred to as the Pickering effect. The possible mechanism is that particles accumulate at the interface of two immiscible liquids to form a dense monolayer to stabilize the emulsion droplets. This type of emulsion is called Pickering emulsion. [0003] In 1991, the French scientist Pierre-Gilles De Genes first proposed the concept of Janus particles. Since then, the research on particles with dual properties on the surface has attracted extensive attention of researchers. The asymmetry of chemical properties and physical structure of Janus particles endows the particles with some important characteristic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00B82Y30/00B82Y40/00C08G83/00
Inventor 周鹏杨振忠李婧张成亮
Owner INST OF CHEM CHINESE ACAD OF SCI
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