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Mold core with copied natural biological super-hydrophobic surface as well as preparation method and application of mold core

A super-hydrophobic surface, super-hydrophobic technology, applied in the electrolysis process, electroforming and other directions, to achieve the effect of good biomimetic hydrophobicity

Active Publication Date: 2015-01-28
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no relevant report on the method of obtaining a natural super-hydrophobic surface injection mold core by electroforming process, and then preparing a super-hydrophobic surface by injection molding process.

Method used

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  • Mold core with copied natural biological super-hydrophobic surface as well as preparation method and application of mold core
  • Mold core with copied natural biological super-hydrophobic surface as well as preparation method and application of mold core

Examples

Experimental program
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Effect test

example 1

[0027] A kind of preparation method of the mold core of bamboo leaf superhydrophobic surface, comprises the steps:

[0028] (1) Extract fresh bamboo leaves, rinse them with distilled water, dry them, cut them into small pieces of 10mm×10mm and place them in a vacuum coating machine, carry out surface gold spraying treatment on the superhydrophobic surface of bamboo leaves, and the thickness of the gold spray layer is 15nm;

[0029] (2) Prepare electroforming solution: dissolve nickel sulfamate, nickel chloride, boric acid, and sodium lauryl sulfate in distilled water respectively, and stir evenly to obtain electroforming solution; each component in the described electroforming solution Concentrations are nickel sulfamate 400g / L, nickel chloride 10g / L, boric acid 30g / L and sodium lauryl sulfate 2ml / L;

[0030] (3) Add sodium lauryl sulfate dropwise to the bamboo leaves after the gold spraying treatment until the surface is completely infiltrated, and then clamp it to the electr...

Embodiment 2

[0034] The method for replicating the super-hydrophobic surface of bamboo leaves using the mold core of the bamboo leaf super-hydrophobic surface of embodiment 1 comprises the following steps: the mold core of the super-hydrophobic surface of bamboo leaves is carried out by wire cutting, and the electroforming edge effect is removed. The corner is made into a 10mm×10mm injection mold core, the injection mold core is installed on the injection mold, and then the mold is installed on the injection molding machine for injection molding to obtain a superhydrophobic polymer part consistent with the bamboo leaf superhydrophobic surface structure. Hydrophobic testing was carried out on the obtained superhydrophobic polymer parts. The contact angle of water droplets on it was 150°, and the rolling angle was 2°, which showed good biomimetic hydrophobicity.

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Abstract

The invention discloses a mold core with a copied natural biological super-hydrophobic surface as well as a preparation method and application of the mold core, and belongs to the technical field of preparation of hydrophobic surfaces. The method comprises the steps of putting a natural biological super-hydrophobic surface serving as a mother board into electroforming liquid using nickel sulfamate as a main salt to serve as a cathode, connecting a nickel plate serving as an anode to a pulse power supply and performing electroforming to obtain a cast layer copied with a super-hydrophobic surface structure; and then manufacturing an injection mold core by using the cast layer, installing the injection mold core on an injection mold and performing injection molding to obtain a super-hydrophobic polymer piece consistent with the natural biological surface structure. The super-hydrophobic surface matrix is selected from a natural biology and has a regular micro-nano structure and good hydrophobic performance, and the prepared super-hydrophobic polymer piece has relatively good bionic hydrophobic property. The mold core with the natural biological super-hydrophobic surface, which is prepared by using an electroforming process, can realize large-batch manufacturing of the super-hydrophobic polymer piece consistent with the natural biological super-hydrophobic surface mother board structure.

Description

technical field [0001] The invention belongs to the technical field of preparation of hydrophobic surfaces, in particular to a mold core for replicating natural biological super-hydrophobic surfaces, a preparation method and application thereof. Background technique [0002] The superhydrophobic surface has the functions of self-cleaning, anti-current conduction, anti-corrosion, waterproof, anti-fog, anti-mildew, anti-snow, anti-frost, anti-adhesion and anti-pollution, etc. It is used in space exploration, military, industrial and agricultural production, biomedical engineering, There are very broad application prospects in the field of microfluidics and in people's daily life. How to prepare high-quality hydrophobic surfaces has always been a hot research. At present, researchers mainly realize superhydrophobicity on the surface of materials by constructing micro-nano particle structures, micro-nano pattern patterns, nanorods, and nanowires. It is difficult to achieve lar...

Claims

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Application Information

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IPC IPC(8): C25D1/10C25D3/12C25D5/18
Inventor 翁灿黎醒王飞吕辉蒋炳炎
Owner CENT SOUTH UNIV
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