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Preparation method of metal-base superhydrophobic material

A technology based on hydrophobic materials and ultra-based materials, which is applied in electrolysis process, electroforming, etc., can solve the problems of lack of mechanical, electrical, and mechanical properties, and limit the application range of materials, and achieve the effects of low price, good portability, and safe operation

Inactive Publication Date: 2011-04-13
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of mechanical, electrical, and mechanical properties of the general non-metal-based superhydrophobic materials, the application range of this material is also limited.

Method used

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  • Preparation method of metal-base superhydrophobic material
  • Preparation method of metal-base superhydrophobic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment includes the following steps:

[0026] Step 1: Collect pigeon feathers, wash them with deionized water, and dry them at room temperature. Paste the feather flat on a clean glass slide.

[0027] Step 2: Coat the configured PDMS (polydimethylsilane) evenly on the feather surface, and then cure.

[0028] The PDMS is formulated according to the ratio of main agent:curing agent=10:1, and is viscous liquid at normal temperature. The curing temperature is 40° C., and the curing time is 120 minutes.

[0029] Step 3: The cured PDMS was peeled off from the glass slide, and the micro / nano array structure was successfully replicated on the PDMS surface. The PDMS surface is evenly distributed with micron-scale strip structures with a height of 2 μm, a length of 5 μm, and a spacing of 15 μm.

[0030] Step 4: sputtering a Cu seed layer on the PDMS surface with micro / nanostructures replicated.

[0031] The sputtering seed layer refers to...

Embodiment 2

[0040] Such as figure 1 As shown, this embodiment includes the following steps:

[0041] Step 1: Clean the surface of the lotus leaf with deionized water and dry it at room temperature. Paste the lotus leaves flat on a clean glass slide.

[0042] Step 2: Coating the prepared PDMS (polydimethylsilane) evenly on the surface of the lotus leaf, and then curing.

[0043] The PDMS is formulated according to the ratio of main agent:curing agent=10:1, and is viscous liquid at normal temperature. The curing temperature is 50° C., and the curing time is 60 minutes.

[0044] Step 3: The cured PDMS was peeled off from the glass slide, and the micro / nano array structure on the surface of the lotus leaf was successfully replicated on the PDMS surface. The PDMS surface is uniformly distributed with a cone-shaped array structure with a height of 2 μm, a diameter of 2 μm, and a pitch of 5 μm.

[0045]Step 4: sputtering a Cu seed layer on the PDMS surface with the micro / nano structure repl...

Embodiment 3

[0055] Such as figure 1 As shown, this embodiment includes the following steps:

[0056] Step 1: Clean the surface of the bamboo leaves with deionized water and dry them at room temperature. Stick the bamboo leaves flat on the clean glass.

[0057] Step 2: Coating the configured PDMS (polydimethylsilane) evenly on the surface of bamboo leaves, and then curing.

[0058] The PDMS is formulated according to the ratio of main agent:curing agent=10:1, and is viscous liquid at normal temperature. The curing temperature is 60°C, and the curing time is 60 minutes.

[0059] Step 3: The cured PDMS was peeled off from the glass slide, and the micro / nano array structure of the bamboo leaf surface was successfully replicated on the PDMS surface. The uniform distribution on the surface of PDMS has a cluster array structure with a height of 3 μm, a diameter of 2 μm, and a pitch of 8 μm.

[0060] Step 4: sputtering a Cu seed layer on the PDMS surface with the micro / nano structure replica...

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Abstract

The invention relates to a preparation method of a metal-base superhydrophobic material, belonging to the technical field of superhydrophobicity. The method comprises the following steps: using a pretreated hydrophobic substrate as the template; duplicating with dimethyl polysiloxane to obtain a disordered array structure; growing engineering metal material on the disordered array structure, and coating a low-surface-energy layer, so as to realize the superhydrophobicity. The method does not need to use strong acid or toxic substances, thereby being safe and environment-friendly; the materials used in the technique are easy to obtain and cheap; and the metal-base superhydrophobic material has the advantages of favorable metallic conductivity, high strength, favorable mechanical properties and the like, and the application range is greatly widened as compared with the that of prior polymer superhydrophobic material.

Description

technical field [0001] The invention relates to a method in the technical field of superhydrophobic materials, in particular to a method for preparing a metal-based superhydrophobic material. Background technique [0002] The manufacture of superhydrophobic materials is a high-tech based on bionic technology, and its hydrophobic, oleophobic and self-cleaning properties have broad application prospects in scientific research and daily life. Research on the lotus leaf shows that micron-scale protrusions are distributed on the surface of the lotus leaf. More detailed research has found that nano-scale protrusions are distributed on the micron-scale protrusions; Waxy layer. Combining these three factors, the surface of the lotus leaf has excellent superhydrophobicity, which can realize the self-cleaning function. Structural features similar to those of lotus leaves were also found in microscopic studies of rice leaves. At this stage, the research on superhydrophobic surfaces ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/00C25D1/10
Inventor 汪红李光杨丁桂甫杨卓青姚锦元
Owner SHANGHAI JIAO TONG UNIV
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