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Method for manufacturing quasi-three-dimensional micron-nanometer column array

A technology of nano-column array and production method, which is applied in the field of production of three-dimensional nanostructures, can solve the problems of damage to template molded products, waste of mold materials, difficulty in separating templates and molded products, etc., to ensure complete and long-lasting use, and reduce batch preparation Cost, the effect of reducing the number of copies

Inactive Publication Date: 2014-04-23
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods increase the difficulty of the preparation process due to their limitations in material selection, cumbersome and complicated step-by-step processing, waste of mold materials and inability to meet reuse requirements.
[0005] The existing conventional hot pressing or pouring molding technology uses a rigid solid template. After hot pressing or pouring molding is cooled, the template and the molded product are difficult to separate, and the molding rate is low. It is not suitable for mass production of quasi-three-dimensional nanostructures. Especially when the upper part of the micro-nano structure is larger than the root, the template and the finished product will be stuck with each other, causing damage to the template or molded product when separated

Method used

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  • Method for manufacturing quasi-three-dimensional micron-nanometer column array
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  • Method for manufacturing quasi-three-dimensional micron-nanometer column array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: (heating-cooling molding)

[0032] Such as figure 1 , 2 , 3 and 4, what the present invention exemplifies is a processing method for an ordered array of micron or nanometer cylinders whose middle part is thinner than the upper and lower bottoms. figure 1 with 2 is a three-dimensional structure diagram and a schematic diagram of a longitudinal section structure of the obtained molded product; image 3 Shown is the processing method flow chart; Figure 4 Shown is the SEM image of the obtained micro-nano structure.

[0033] The preparation method comprises the following steps:

[0034] The first step is the fabrication of a silicone elastomer (polydimethylsiloxane elastomer) template. exist image 3 In the shown embodiment, other processing methods (electron beam etching, special photolithography, template method or chemical etching method, etc.) , the size of the nanostructure is 100 nm-500 μm), and then the prepared polydimethylsilox...

Embodiment 2

[0037] Embodiment 2: (thermocompression forming)

[0038] The first step is the same as in Example 1.

[0039] The second step adopts the mechanical thermocompression forming method. exist image 3 In the shown embodiment, a flat-plate hot-pressing device is used, the heating temperature is set at 50-230 °C, and the upper surface of the polystyrene board is uniformly hot-pressed with a polydimethylsiloxane elastic hot-press template. After 30 min, the polydimethylsiloxane template and the polystyrene plate were taken out at the same time, and after cooling to room temperature, the polydimethylsiloxane template was separated from the finished product to obtain a plastic micro- and nano-column array structure.

[0040] The final shape of the cylinder is as Figure 5 shown.

Embodiment 3

[0041] Embodiment 3: (casting molding)

[0042] The first step is the same as in Example 1.

[0043] The second step adopts pouring molding. and image 3 The example implementation shown is slightly different. First heat the polydimethylsiloxane elastic template to 80 ℃ to solidify, then cool. Then pour the polyurethane prepolymer solution on the elastic template stamp, then place it in an oven at 30 °C for 6 h, take it out after the solvent is completely volatilized, and finally peel the polyurethane material from the elastic template. A polyurethane microcolumn array with a spatula-like top was obtained.

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Abstract

The invention discloses a method for manufacturing a quasi-three-dimensional micron-nanometer column array, belongs to the technical field of micron and nanometer materials and preparation thereof, and in particular relates to a manufacturing method of a micron-nanometer mushroom head ordered array. According to the manufacturing method, an elastomer and an injection molding technology are combined, the surface of a thermoplastic material substrate is hot-pressed and then cooled by a high-temperature-resistant elastomer template with a micron-nanometer pit array, or a material to be processed is poured on the surface of the elastomer and then is solidified, and a finished product is separated from the template to obtain a quasi-three-dimensional micron-nanometer structure. The method has the characteristics of simplicity and quickness in operation, low manufacturing cost, high controllability, high repeatability, wide material application and the like, is applied to the fields of super-hydrophilic / super-hydrophobic surfaces, surface plasma sensors, surface enhanced Raman spectroscopy, solar cells and the like, and provides conditions for productization of quasi-three-dimensional micron-nanometer structures.

Description

technical field [0001] The invention relates to a method for manufacturing a three-dimensional nanostructure, and more specifically, to a method for manufacturing a quasi-three-dimensional micro-nano column array. Background technique [0002] Quasi-three-dimensional surface micro-nanostructures have important applications in the fields of surface science, nanoscience, biomimetic biology, energy and catalysis. In particular, the micro-nano pillar array structure with the upper part larger than the root has important application prospects in the fields of superhydrophilic / hydrophobic surfaces, surface heat transfer, surface plasmon sensing, and solar light harvesting. For example, the micro-nano-column array made of hydrophobic material, whose upper part is larger than the root, can effectively prevent water droplets from infiltrating into the root of the micro-nano-column array, thus having super-hydrophobic properties and self-cleaning functions. [0003] Existing methods...

Claims

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Application Information

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IPC IPC(8): B81C1/00
Inventor 周建华潘益李万博
Owner SUN YAT SEN UNIV
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