Method for preparing super-hydrophobic surface by nano-composite electro-brush plating

A super-hydrophobic surface and nano-composite technology, which is applied in the field of super-hydrophobic surface preparation by nano-composite brush plating, can solve the problems of insufficient durability of surface wear resistance, difficulty in large-area preparation, and low mechanical strength of the surface to achieve good friction Performance and corrosion resistance, simple and reliable equipment, good hydrophobic effect

Active Publication Date: 2013-11-27
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a super-hydrophobic surface by nanocomposite electric brush plating, which solves the problems of low mechanical strength of the surface in the preparation process of the current super-hydrophobic surface, complicated technological process, and insufficient durability of surface wear resistance. Difficult to achieve large-area preparation

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the superhydrophobic surface method of preparation divides two steps:

[0026] Step 1, preparation of nanocomposite coating:

[0027] First, the Q345 carbon steel substrate is polished to a surface roughness of Ra0.8, cleaned and then dried.

[0028] Prepare the electrocleaning solution, No. 2 activation solution, No. 3 activation solution, special nickel solution, nano-C particle composite Ni plating solution, and nano-Cu composite Ni plating solution required for brush plating;

[0029] According to the process sequence of electro-cleaning-No. 2 activation-No. 3 activation-plating bottom layer-plating nano-C / Ni composite coating-plating nano-Cu / Ni composite coating, a double-layer nano-coating with micro-nano double rough structure is deposited on the carbon steel substrate. Composite coating, rinse the sample with deionized water after each step is completed, and then proceed to the next step;

[0030]The brush plating process parameters of each proce...

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Abstract

A method for preparing a super-hydrophobic surface by nano-composite electro-brush plating belongs to the method for preparing of the super-hydrophobic surface. The method comprises the following steps: step1, preparation of plating: firstly, polishing carbon steel basal body, wherein the surface roughness Ra is 0.8, and then drying after cleaning; sedimentating double-layered nano-composite plating with micro-nano double coarse structure on the carbon steel basal body according to the process order of electrocleaning-second actification-third actification-bottom layer plating-plating of nanometer C/Ni composite plating-plating of nanometer Cu/Ni composite plating, using deionized water to wash after each step is finished, and then conducting next step; placing brush plated sample into alcohol, washing for 30 min in an ultrasonic cleaner, placing in a drying box at the temperature of 60 DEG C to dry for 1 h; step2, surface chemical modification: placing dried sample in prepared silicon fluoride solution to soak for 40 min at the temperature of 60 DEG C, wherein the mass ratio of Actyflon-G607 and absolute ethyl alcohol is 1:49, and taking out to dry in the drying box at the temperature of 100 DEG C for 1 h.

Description

technical field [0001] The invention relates to a method for preparing a hydrophobic surface, in particular to a method for preparing a super-hydrophobic surface by nanocomposite electric brush plating. Background technique [0002] Superhydrophobic surfaces have broad application prospects in many fields due to their excellent properties, such as self-cleaning function, waterproof, anti-icing, anti-corrosion, etc. The most well-known superhydrophobic surface is the lotus leaf, which has excellent superhydrophobic performance and extraordinary self-cleaning function. The preparation and application of superhydrophobic surfaces has always been a research hotspot for scientists. The researchers summed up two methods for preparing superhydrophobic surfaces: one is to prepare micro-nano double rough structures on materials with low surface energy, and the other is to prepare micro-nano double rough structures on materials with relatively high surface energy. , and then modify ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/06C25D5/14C25D15/00
CPCC25D3/12C25D5/06C25D5/14C25D5/36C25D5/48C25D15/00C25D5/605
Inventor 刘洪涛汪雪梅
Owner CHINA UNIV OF MINING & TECH
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