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Simple preparation method of magnetic response super-hydrophobic surface

A super-hydrophobic surface, magnetic responsive technology, applied in coatings and other directions, can solve the problems of high preparation cost and low applicability, and achieve the effect of high applicability, easy purchase and cost reduction.

Active Publication Date: 2020-10-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of high preparation cost and low applicability in the above-mentioned prior art, the purpose of the present invention is to provide a method for preparing a magnetically responsive superhydrophobic surface with low cost, simple process, strong applicability and good output performance.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] A simple method for preparing a magnetically responsive superhydrophobic surface, comprising the following steps:

[0036] Step 1. Use a balance to measure the PDMS prepolymer and curing agent respectively. The PDMS prepolymer uses Sylgard184 and select 5g, and the PDMS prepolymer and curing agent are mixed according to the mass ratio of 10:1, and then use a graduated cylinder to measure the organic solvent Silicone oil, wherein the silicone oil is Dow Corning OS-20 silicone oil and 10mL is selected, then poured into a beaker and mixed, and stirred evenly with a glass rod.

[0037] Step 2. Use a balance to measure 5g of Fe powder with a particle diameter of 1-10μm, pour it into a beaker, and continue to stir vigorously with a glass rod for more than 5 minutes until it becomes a uniform black mixed solution, so that the Fe particles are evenly distributed in the mixed solution .

[0038] Step 3. Place the glass substrate on the neodymium magnet, and use a spray gun to e...

Embodiment 2

[0041] A simple method for preparing a magnetically responsive superhydrophobic surface, comprising the following steps:

[0042] Step 1. Use a balance to measure the PDMS prepolymer and curing agent respectively. The PDMS prepolymer uses Sylgard184 and select 25g, and the PDMS prepolymer and curing agent are mixed according to the mass ratio of 10:1, and then use a graduated cylinder to measure the organic solvent Silicone oil, wherein the silicone oil adopts Dow Corning OS-20 silicone oil and selects 50mL, then pours it into a beaker and mixes it, and stirs it evenly with a glass rod.

[0043] Step 2. Use a balance to measure 25g of Fe powder with a particle diameter of 1-10μm, pour it into a beaker, and continue to stir vigorously with a glass rod for more than 5 minutes until it becomes a uniform black mixed solution, so that the Fe particles are evenly distributed in the mixed solution .

[0044]Step 3. Place the glass substrate on the neodymium magnet, and use a spray g...

Embodiment 3

[0047] A simple method for preparing a magnetically responsive superhydrophobic surface, comprising the following steps:

[0048] Step 1. Use a balance to measure the PDMS prepolymer and curing agent respectively. The PDMS prepolymer uses Sylgard184 and select 10g, and the PDMS prepolymer and curing agent are mixed according to the mass ratio of 10:1, and then use a graduated cylinder to measure the organic solvent Silicone oil, wherein the silicone oil adopts Dow Corning OS-20 silicone oil and selects 30mL, then pours it into a beaker and mixes it, and stirs it evenly with a glass rod.

[0049] Step 2. Use a balance to measure 15g of Fe powder with a particle diameter of 1-10μm, pour it into a beaker, and continue stirring vigorously with a glass rod for more than 5 minutes until it becomes a uniform black mixed solution, so that the Fe particles are evenly distributed in the mixed solution .

[0050] Step 3. Place the glass substrate on the neodymium magnet, and use a spray...

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Abstract

The invention relates to a preparation method of a super-hydrophobic surface, in particular to a simple preparation method of a magnetic response super-hydrophobic surface. The method comprises the following steps: 1, respectively measuring a PDMS prepolymer and a curing agent by using a balance, mixing according to a mass ratio of 10: 1, measuring organic solvent silicone oil by using a measuringcylinder, pouring into a beaker, mixing, and uniformly stirring by using a glass rod; 2, weighing Fe powder with the particle diameter of 1-10 microns by using the balance, pouring the Fe powder intothe beaker, and continuing to violently stir for more than 5 minutes by using the glass rod until the Fe powder is stirred into a uniform black mixed solution; 3, placing a glass sheet substrate on aneodymium magnet, and uniformly spraying the mixed solution prepared in the step 2 onto the glass substrate by using a spray gun; and 4, putting the neodymium magnet in the step 3 and the glass substrate on the neodymium magnet into a drying box to be heated and cured at the heating temperature of 60 DEG C for the heating time of 12 h to volatilize the organic solvent silicone oil and cure the PDMS to obtain a PDMS / iron particle composite columnar array microstructure, and finally obtaining the magnetic response super-hydrophobic surface.

Description

technical field [0001] The invention relates to a method for preparing a superhydrophobic surface, in particular to a simple method for preparing a magnetically responsive superhydrophobic surface. Background technique [0002] In recent years, the superhydrophobic properties of the most representative lotus leaf have gradually entered the field of vision of researchers. People have conducted extensive research on the characteristics of lotus leaves that "get out of the mud without staining". Studies have shown that lotus leaves The main reason for this self-cleaning effect is that the micro-nano-scale composite structure of the surface reduces the contact area between the droplet and the surface, thereby preventing the droplet from wetting the surface and making the surface exhibit superhydrophobic properties. [0003] With the continuous development of bionics, more and more materials with superhydrophobic properties have been widely used in production and life. For examp...

Claims

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Application Information

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IPC IPC(8): C03C17/00C08K3/08C08L83/04
CPCC03C17/009C08K3/08C08K2003/0856C03C2217/76C03C2217/29C08L83/04
Inventor 李静彭宪宇马传栋
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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