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A kind of self-supporting nano assembly material and its preparation method

A nano-assembly and nano-material technology, applied in the nano field, can solve problems such as limiting the scope of application, and achieve the effect of simple steps

Active Publication Date: 2020-09-25
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above shortcomings have caused a lot of inconvenience to the practical application of nano-assemblies and greatly limited its application range.

Method used

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  • A kind of self-supporting nano assembly material and its preparation method
  • A kind of self-supporting nano assembly material and its preparation method
  • A kind of self-supporting nano assembly material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Prepare 10 mL of nano-silver-coated gold particle solution in a beaker and add it to the rotor;

[0017] 2) Dissolve 20 mg polyvinyl chloride in 5 mL cyclohexanone solution;

[0018] 3) Place the polyvinyl chloride-containing cyclohexanone solution on 10 mL of nano-silver-coated gold particle solution to construct a water-cyclohexanone interface;

[0019] 4) The solution is stirred by the rotor, so that the nano-silver-coated gold particles float to the water-cyclohexanone interface, and self-assemble into a nano-assembly;

[0020] 5) After the upper layer of cyclohexanone volatilizes, polyvinyl chloride forms a thin film at the interface, and fixes the nano silver-coated gold assembly;

[0021] 6) Taking out the polyvinyl chloride film containing the nano-silver-coated gold assembly to obtain a self-supporting nano-silver-coated gold assembly material.

Embodiment 2

[0023] 1) Prepare 20 mL of nano-gold solution in a beaker;

[0024] 2) Add 5 mg of carbon black and 50 mg of polystyrene into 10 mL of toluene solution, and stir to form a mixed solution;

[0025] 3) Place the toluene solution containing carbon black and polystyrene on 20 mL nano-gold solution to construct the water-toluene interface;

[0026] 4) Place the above-mentioned beaker in an ultrasonic instrument for ultrasonication, so that the nano-gold floats to the water-toluene interface, and self-assembles into a nano-assembly;

[0027] 5) After the upper layer of toluene volatilizes, the polystyrene containing carbon black forms a thin film at the interface, and fixes the nano-gold assembly;

[0028] 7) Taking out the polystyrene carbon black film containing the nano-gold assembly to obtain a self-supporting nano-assembly material.

[0029] 8) The self-supporting nano-assembly material is further processed by plasma to regulate the mosaic state of the nano-gold assembly and ...

Embodiment 3

[0031] 1) Prepare 20 mL of nano-silver solution in a beaker and add it to the rotor;

[0032] 2) Dissolve 10 mg graphene oxide and 40 mg polymethyl methacrylate in 10 mL cyclohexanone toluene solution, and stir to form a mixed solution;

[0033] 3) Place the cyclohexanone toluene solution containing graphene oxide and polymethyl methacrylate on 20 mL nano gold solution to construct the water-cyclohexanone toluene interface;

[0034] 4) The solution is stirred by the rotor, so that the nano-silver particles float to the water-cyclohexanone toluene interface, and self-assemble into a nano-assembly;

[0035] 5) After the upper cyclohexanone toluene volatilizes, the polymethyl methacrylate containing graphene oxide forms a thin film at the interface, and fixes the nano-silver assembly;

[0036] 6) The polymethyl methacrylate graphene oxide film containing the nano-silver assembly is taken out to finally obtain a self-supporting nano-assembly material.

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Abstract

The invention provides a self-supporting nano assembly material and a preparation method thereof. The preparation method comprises the following specific steps of: step a), preparing a nano material aqueous solution; step b), selecting an organic solvent and adding a high polymer to prepare a polymer solution; step c), placing the polymer solution prepared in step b) above the nano material aqueous solution to form an oil-water interface; step d), stirring the solution described in step c) to form a nano self-assembly body of the nano material at the oil-water interface; step e) after the solvent in the upper polymer solution is volatilized completely, separating out the high polymer to form a film at the interface, and fixing the nano self-assembly body at the same time; and step g) taking out the polymer film to obtain a flexible self-supporting nano self-assembly material. Compared with the prior art, the method provided by the invention has simple steps, can form a flexible, firm and lightweight self-supporting nano assembly material by a one-step method, and has the characteristics of rapidness, simplicity and economy.

Description

technical field [0001] DESCRIPTION OF THE TECHNICAL FIELD The present invention relates to the field of nanotechnology, and more specifically, to a self-supporting nano-assembled material and a preparation method thereof. Background technique [0002] Nanomaterials refer to materials that have at least one dimension in the nanoscale range (1–100 nm) or are composed of them as basic units in three-dimensional space. The assembled nanomaterials not only have the characteristics of nanomaterials (such as quantum size effect, small size effect, surface effect and macroscopic quantum tunneling effect), but also have new effects caused by the assembly of nanomaterials (such as quantum coupling effect and synergistic effect, etc.) . Through various levels of structural design and chemical modification technology, the active manipulation of nanostructure units, the construction of two-dimensional and three-dimensional advanced structures with new functions and characteristics, not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L27/06C08L25/06C08L33/12C08K9/02C08K3/08C08K3/04
CPCC08J2325/06C08J2327/06C08J2333/12C08K3/04C08K3/08C08K5/18C08K9/02C08K2003/0806C08K2003/0831C08K2201/011C08L27/06C08L25/06C08L33/12
Inventor 钟鹭斌郑煜铭吴鹏
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI