Durable super-hydrophobic candle ash coating and preparation method thereof

A super-hydrophobic and durable technology, applied in coatings, metal material coating processes, devices for coating liquids on surfaces, etc., can solve problems such as coating damage, surface roughness difficult to control, and low life, and achieve improved The effect of corrosion resistance, good mechanical stability, and superior self-cleaning performance

Pending Publication Date: 2022-02-25
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the invention is to provide a durable superhydrophobic candle soot coating, which solves the problems that the existing coating is easily damaged by mechanical external force, has a low service life and is difficu

Method used

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  • Durable super-hydrophobic candle ash coating and preparation method thereof
  • Durable super-hydrophobic candle ash coating and preparation method thereof
  • Durable super-hydrophobic candle ash coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] Such as figure 1 The preparation of the durable super-slogan candle is prepared, and the specific steps are as follows:

[0030] Step 1): The purity of 2 cm × 2 cm × 0.25 cm was 99.99% of the copper sheet and the stainless steel sheet were immersed in a 95% ethanol solution, and washed with an ultrasonic cleaning device (temperature set to 25 ° C) to remove the surface of the substrate surface. Impurities And oil. The copper sheet is attached to the anode of the power source, the stainless steel sheet is connected to the cathode of the power source, the copper sheet and the stainless steel sheet are also immersed in the copper sulfate electrolyte solution. Turn on the power, the parameter is set to the current density of 0.00075mm 2 / A, the voltage is 3V, the power transmission time is 30 min, after the end of power is over, the copper sheet produces micro-nano-stage irregular micro-morphology. Then use the ultrasonic cleaner (parameter setting temperatu...

Example Embodiment

[0037] Example 2

[0038] Preparation of durability supergraphic candle ash asks, specific steps are as follows:

[0039] Step 1): The purity of 2 cm × 2 cm × 0.25 cm was 99.99% of the copper sheet and the stainless steel sheet were immersed in a 95% ethanol solution, and washed with an ultrasonic cleaning device (temperature set to 25 ° C) to remove the surface of the substrate surface. Impurities And oil. The copper sheet is connected to the anode of the power source, and the stainless steel sheet is connected to the cathode of the power source, the copper sheet and the stainless steel sheet are also immersed in a copper sulfate electrolyte solution. Turn on the power, the parameter is set to the current density of 0.00060mm 2 / A, the voltage is 3V, the power-on time is 30 min, after the end of power is over, the copper sheet produces micro-nano-stage uneven texture. Then, with an ultrasonic cleaner (parameter setting temperature 25 ° C), the chemically etched copper sheet was ...

Example Embodiment

[0047] Example 3

[0048] Preparation of durability supergraphic candle ash asks, specific steps are as follows:

[0049] Step 1): The purity of 2 cm × 2 cm × 0.25 cm was 99.99% of the copper sheet and zinc sheet were immersed in a 95% ethanol solution, and washed with an ultrasonic cleaner (temperature set to 25 ° C) to remove 10 min, removing impurities of the surface of the substrate. And oil. The zinc sheet is connected to the anode of the power source, and the copper sheet is attached to the cathode of the power source, the copper sheet and the zinc sheet are simultaneously immersed in a dilute sulfuric acid electrolyte solution. Turn on the power, the parameter is set to the current density of 0.00075mm 2 / A, the voltage is 3V, the power-on time is 30 min, after the end of power is over, the zinc film produces micro-nano-stage irregular micro-morphology. Then, the chemically etched zinc sheet was washed 15 min with 95% ethanol with a ultrasonic cleaner (parameter setting te...

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Abstract

The invention discloses a durable super-hydrophobic candle ash coating and a preparation method thereof. The surface of a metal substrate subjected to chemical etching pretreatment is coated with a mixture of a bonding layer. And the brushed substrate is put into a vacuum drying box for vacuum treatment, so that mixture molecules permeate into the substrate. A candle is ignited, after the candle is stably burnt, the substrate is clamped through tweezers, the substrate is placed in the middle of the flame of the candle, soot particles are deposited, and the super-hydrophobic coating with the durable performance is obtained. The coating is good in stability and durability, and has excellent self-cleaning performance and good corrosion resistance.

Description

technical field [0001] The invention relates to a hydrophobic coating and its preparation, in particular to a durable superhydrophobic candle soot coating and its preparation method. Background technique [0002] A superhydrophobic surface refers to a surface with a water contact angle exceeding 150° and a sliding angle below 10°. Because of its excellent hydrophobic properties, it has a large number of application practices in engineering fields such as fluid drag reduction, oil-water separation, and self-cleaning. Commonly used superhydrophobic coating preparation methods include photolithography, template method, chemical vapor deposition method, electrospinning method, etc., but these preparation methods have disadvantages such as complex process, high equipment requirements, and expensive materials. At present, the rough structure of most surfaces prepared for the purpose of superhydrophobicity is random and difficult to control. Contents of the invention [0003] P...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D7/24B05D3/10C25F3/02C23C26/00
CPCB05D7/14B05D7/24B05D3/102C25F3/02C23C26/00B05D2202/45B05D2202/30
Inventor 李凤芹刘勇田桂中周宏根
Owner JIANGSU UNIV OF SCI & TECH
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