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Novel method for preparing super-hydrophobic surface on iron plate

A super-hydrophobic surface and new method technology, applied in the coating process of metal materials, coating, etc., can solve the problems of expensive, complex preparation process, difficult large-scale application, etc., and achieve good reproducibility, simple operation process, and environmental protection non-polluting effect

Inactive Publication Date: 2015-01-28
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the methods reported in the literature to prepare superhydrophobic surfaces on iron sheets mainly include electrodeposition, corrosion, sol-gel methods, etc., but these methods either have complicated preparation processes, or use expensive materials or special equipment, and are difficult to truly Large-scale application in practice

Method used

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  • Novel method for preparing super-hydrophobic surface on iron plate
  • Novel method for preparing super-hydrophobic surface on iron plate
  • Novel method for preparing super-hydrophobic surface on iron plate

Examples

Experimental program
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Effect test

Embodiment 1

[0015] First light a candle, and after the candle burns for 2 minutes, place the iron sheet flatly at a place 0.5cm below the top of the candle flame to deposit the burning candle ash on the iron sheet. Obtain a superhydrophobic surface, and the contact angle test results show that the obtained surface contact angle is 150° (such as figure 1 ), the roll angle is 4°.

Embodiment 2

[0017] First, light a candle, and after the candle burns for 2 minutes, place the iron sheet flatly at 1 cm below the top of the candle flame to deposit the burning candle ash on the iron sheet, and after the candle ash deposits on the iron sheet for 5 minutes, it is obtained Superhydrophobic surface, contact angle test results show that the resulting surface contact angle is 156 ° (such as figure 2 ), the roll angle is 2°.

Embodiment 3

[0019] First, light a candle. After the candle burns for 2 minutes, place the iron sheet flatly at 1.5cm below the top of the candle flame to deposit the burning candle ash on the iron sheet. Obtain a superhydrophobic surface, and the contact angle test result shows that the obtained surface contact angle is 158° (as image 3 ), the roll angle is 2°.

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Abstract

The invention discloses a novel method for preparing a super-hydrophobic surface on an iron plate. The method is characterized by comprising the following steps: firstly, lighting a candle; after the candle is burned for 2 minutes, horizontally laying the iron plate at 0.5-2 cm part below the top point of the flame of the candle so that the burned tears are deposited onto the iron plate; after the candle tears are deposited onto the iron plate for 2-10 minutes, obtaining the super-hydrophobic surface on the iron plate, wherein the contact angle of the obtained super-hydrophobic surface falls within a range of 150-160 DEG and the rolling angle of the obtained super-hydrophobic surface is less than 5 DEG. The novel method for preparing the super-hydrophobic surface on the iron plate, disclosed by the invention, has the advantages of no need of expensive equipment and materials, simplicity in operation, good controllability, low cost, zero pollution to the environment and easiness in industrialization.

Description

technical field [0001] The invention belongs to the technical field of super-hydrophobic surface preparation, in particular to a new method for rapidly preparing a large-area super-hydrophobic surface on an iron sheet. Background technique [0002] Surface wettability is an important property of solid materials. Inspired by the lotus leaf effect, superhydrophobic surface materials with water contact angles greater than 150° have attracted extensive attention in recent years. Since the contact area of ​​water droplets on the superhydrophobic surface is very small, and it is difficult to stay on the superhydrophobic surface stably, as long as the water droplets are tilted at a small angle or under the action of a slight external force (such as breeze, vibration), the water droplets will flow from the superhydrophobic material. The surface tumbles off quickly. Therefore, the superhydrophobic surface can not only keep dry for a long time, but also can effectively inhibit some r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00
CPCC23C26/00
Inventor 袁志庆王梦蕾黄娟
Owner HUNAN UNIV OF TECH
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