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Method for preparing surface micro-nano dents based on droplet dissolution

A micro-nano and droplet technology, applied in the process of producing decorative surface effects, manufacturing micro-structure devices, micro-structure technology, etc., can solve problems such as complex operations, strict preparation conditions, and strong professionalism

Active Publication Date: 2021-03-09
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] To sum up, both the chemical etching method and the sol-gel method require special equipment to complete the preparation of pits. The template method is simple to prepare pits, but it is highly professional, complicated to operate, and the preparation conditions are relatively strict, which requires the ability of professionals. Complete pit preparation

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  • Method for preparing surface micro-nano dents based on droplet dissolution
  • Method for preparing surface micro-nano dents based on droplet dissolution
  • Method for preparing surface micro-nano dents based on droplet dissolution

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Embodiment Construction

[0012] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0013] The present invention prepares micro-nano dents on the surface based on droplet dissolution, and realizes the simple, rapid and low-cost preparation of micro-nano dents. The whole preparation process is shown in Figure 1, and the preparation process includes the following steps:

[0014] Step 1: Prepare a mixed solution of toluene droplets, mix the toluene solution into the deionized aqueous solution according to a specific ratio, and at the same time, accompanied by ultrasonic oscillation, at this time, due to the extremely low solubility of toluene in water, part of the toluene solution will be precipitated to form micro-nano toluene droplet;

[0015] Step 2: If figure 1 As shown in (a), get a substrate (1), spin-coat a layer of polystyrene film on the ...

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Abstract

The invention relates to a micro-nano structure preparation technology, in particular to a technical method and a technological process for preparing surface micro-nano dents by using micro-nano liquid drops to dissolve a polymer film. The specific preparation method comprises the following steps: firstly, adding a toluene solution in a certain proportion into deionized water, and separating out micro-nano toluene droplets along with ultrasonic oscillation; dropwise adding a drop of the mixed solution onto the substrate spin-coated with the polystyrene film, dissolving the polystyrene film bythe toluene liquid drop at the moment, removing the mixed solution after immersing for a period of time, washing the substrate with a large amount of deionized water, and drying with nitrogen, therebyobtaining the micro-nano dent structure of the polystyrene film on the surface of the substrate. The preparation process is very simple, and the controllability of the size and density of the micro-nano dent structure is good.

Description

technical field [0001] The invention relates to a micro-nano structure preparation technology, in particular to a technical method and process for preparing surface micro-nano dents by dissolving polymer films with micro-nano droplets. Background technique [0002] The surface micro-nano indentation structure has broad application prospects in microfluidic control, optical materials, tissue engineering materials and preparation of microelectronic devices. [0003] At present, there are many methods for preparing surface micro-nano-scale indentation structures, such as template method, chemical etching method and sol-gel method. The template synthesis method is to use a substance with a nanostructure and an easy-to-control shape as a template, such as colloidal particles, microspheres, oil droplets, etc., to deposit it on the surface of the template by physical or chemical methods and then remove the template to obtain a template. Nanomaterial processes that regulate morphol...

Claims

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Application Information

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IPC IPC(8): B81B7/04B81C1/00
CPCB81B7/04B81C1/00031B81C1/00103B81C1/00444
Inventor 王玉亮董丽华曾炳霖廉兆鑫
Owner BEIHANG UNIV
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