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A kind of nano/micro gold film and preparation method thereof

A nano and metal film technology, applied in the field of nano materials, can solve the problems of weak bonding, falling off, easy to break, etc., and achieve the effects of not easy to break, mild reaction conditions, and simple preparation method.

Active Publication Date: 2016-04-20
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a nano / micro gold film and a preparation method thereof. The nano / micro gold film is obtained, thereby solving the technical problems that the nano / micro gold film prepared by the existing nano / micro gold film deposition method is not firmly bonded, and is easy to break and fall off during stretching / bending

Method used

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Examples

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Effect test

preparation example Construction

[0025] Described nano / micro gold film, its preparation method, comprises the following steps:

[0026] (1) Substrate surface treatment: the substrate surface is subjected to oxygen plasma treatment or ultraviolet light irradiation, so that the substrate surface produces oxidized active groups to obtain a surface-activated substrate; the substrate is a non-absorbent dense film, preferably polydimethylformaldehyde silicone, glass, indium tin oxide conductive glass, polyethylene terephthalate film, polyimide film, polyethylene film, or polytetrafluoroethylene film. The oxygen plasma treatment time in step (1) is 3 minutes to 5 minutes, the ultraviolet light intensity is 90uW / cm to 180uW / cm, and the irradiation time is 40 minutes to 90 minutes.

[0027] When the substrate is a plastic substrate, such as a polyethylene film or a polytetrafluoroethylene film, since it is easily deformed when treated with oxygen plasma, the surface treatment of the substrate should be irradiated with...

Embodiment 1

[0035] The nano / micro gold film provided by the present invention comprises a substrate and a nano / micro gold layer, the nano / micro metal layer is formed by depositing metal nanoparticles, the surface of the substrate has amino groups, the metal nanoparticles and the substrate The surface amino groups form a strong interaction, so that the nano / micro gold layer is firmly attached to the surface of the substrate. The matrix is ​​a non-absorbent dense film, which is polydimethylsiloxane.

[0036] Described nano / micro gold film, its preparation method, comprises the following steps:

[0037] (1) Substrate surface treatment: The surface of the polydimethylsiloxane substrate is subjected to oxygen plasma treatment, so that oxidized active groups are generated on the substrate surface, and a surface-activated substrate is obtained. The oxygen plasma treatment time was 3 minutes.

[0038] (2) Substrate surface amination: the surface-activated substrate obtained in step (1) is immer...

Embodiment 2

[0044] The nano / micro gold film provided by the present invention comprises a substrate and a nano / micro gold layer, the nano / micro metal layer is formed by depositing metal nanoparticles, the surface of the substrate has amino groups, the metal nanoparticles and the substrate The surface amino groups form a strong interaction, so that the nano / micro gold layer is firmly attached to the surface of the substrate. The matrix is ​​a non-water-absorbing dense film, which is glass.

[0045] Described nano / micro gold film, its preparation method, comprises the following steps:

[0046] (1) Substrate surface treatment: The surface of the glass substrate is treated with oxygen plasma to generate oxidized active groups on the surface of the substrate to obtain a surface-activated substrate. The oxygen plasma treatment time was 4 minutes.

[0047] (2) Substrate surface amination: the surface-activated substrate obtained in step (1) is immersed in a 3-aminopropyltriethoxysilane solutio...

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Abstract

The invention discloses a nanometer / micron gold film and a preparing method thereof. The nanometer / micron gold film comprises a matrix and a nanometer / micron gold layer. The nanometer / micron gold layer is formed by metal nanoparticles in a deposition mode. Amidogens are arranged on the surface of the matrix. The metal nanoparticles and the amidogens on the surface of the matrix form strong interaction. The preparing method comprises the steps that (1) the surface of the matrix is subjected to oxygen plasma treatment or ultraviolet irradiation; (2) the surface-activated matrix is soaked into an NH2(CH2)3Si(OC2H5)3 solution; and (3) a mixed solution of chloroauric acid and bicarbonate of a strong base and a glucose solution are evenly mixed and are arranged on the surface-amination matrix in a coating mode, and the nanometer / micron gold film is obtained through light-avoiding reaction. According to the nanometer / micron gold film, the types of matrixes are multiple, different mechanical property requirements can be met, combining is firm, breaking is not easy, according to the method, reaction is mild, and cost is low.

Description

technical field [0001] The invention belongs to the field of nanomaterials, and more specifically relates to a nano / micro gold film and a preparation method thereof. Background technique [0002] The nano / micro gold film composed of nanoparticles has obvious surface effect, volume effect, small size effect, quantum effect and good biocompatibility. Its optical properties, electronic properties, sensing properties and biochemical properties have always been research hotspots. . [0003] At present, the preparation methods of nano / micro gold layers mainly include electron beam evaporation, chemical vapor deposition (CVD), physical vapor deposition (PVD) and other methods. Although these methods can obtain relatively uniform nano gold layers, the equipment is expensive and the process is complicated. . In 2009, Chen Hongyuan and others invented a method for chemically depositing nano-gold on PDMS. This method deposits gold directly on PDMS, and the preparation is simple. How...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B81B1/00B82Y40/00
Inventor 刘笔锋燕双仟
Owner HUAZHONG UNIV OF SCI & TECH
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