Preparation method of superhydrophobic nanomaterial

A super-hydrophobic and nano-technology, applied in the field of preparation of nano-super-hydrophobic materials, can solve the problems of narrow application range, weak hydrophobic ability, low adhesion, etc., and achieve the effect of wide application range

Active Publication Date: 2018-09-07
北京中科东亚纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention overcomes the problems of traditional superhydrophobic materials such as weak hydrophobicity, narrow application range, low adhesion, and environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Step 1: ultrasonically disperse 0.2 g of nano-silica in 40 g of absolute ethanol solution, then add 1 g of γ-methacryloxypropyl trimethoxysilane into the mixture and stir rapidly for 2 hours ( The water bath temperature is 60°C), aged at room temperature for 24 hours to obtain solution A; Step 2: Add 1g of γ-methacryloxypropyltrimethoxysilane to 53.5g of absolute ethanol solution and stir rapidly for 2 hours, Then add 0.3g of fumed silica and continue to stir for 30 minutes, and finally slowly add 2g of 1H,1H,2H,2H-perfluorodecyltriethoxysilane dropwise, and stir vigorously for 5 hours to obtain solution B; Step 3: Mix the above Solution A and solution B were mixed and stirred for 2 hours, 2 g of acrylic resin film-forming agent was added, and the stirring was continued for 2 hours to obtain a nanometer superhydrophobic material.

[0015] Spray the nano-superhydrophobic material prepared above on a clean glass sheet, put it in a drying oven at 110°C, and dry it for 2 ho...

Embodiment 2

[0017] Step 1: ultrasonically disperse 0.3 g of nano-silica in 40 g of absolute ethanol solution, then add 2 g of γ-methacryloxypropyltrimethoxysilane into the mixture and stir rapidly for 2 hours (water bath temperature is 60°C), aged at room temperature for 24 hours to obtain solution A; Step 2: Add 2g of γ-aminopropyltriethoxysilane to 48.2g of absolute ethanol solution and stir rapidly for 2 hours, then add 0.5g Fumed silica continued to stir for 30 minutes, and finally slowly added 3g of 1H,1H,2H,2H-perfluorooctyltriethoxysilane dropwise, and stirred vigorously for 5 hours to obtain solution B; step 3: mix the above solution A with solution B mixed and stirred for 2 hours, added 2g of acrylic resin film-forming agent and 2g of butadiene resin film-forming agent, and continued to stir for 2 hours to obtain a nano-superhydrophobic material.

[0018] Spray the nano-superhydrophobic material prepared above on a clean aluminum plate, put it in a drying oven at 80°C, and dry it...

Embodiment 3

[0020] Step 1: ultrasonically disperse 0.5 g of nano-silica in 40 g of absolute ethanol solution, then add 2 g of γ-methacryloxypropyl trimethoxysilane into the mixture and stir rapidly for 2 hours ( The temperature of the water bath is 60°C), aging at room temperature for 24 hours to obtain solution A; Step 2: mix 2g of γ-aminopropyltriethoxysilane and 2g of γ-(2,3-glycidyloxy)propyltrimethoxysilane Add to 42.8g absolute ethanol solution and stir rapidly for 2 hours, then add 0.7g fumed silicon dioxide and continue stirring for 30 minutes, and finally slowly add 5g 1H,1H,2H,2H-perfluorodecyltriethoxysilane dropwise, Stir vigorously for 5 hours to obtain solution B; Step 3: Mix and stir the above solution A and solution B for 2 hours, add 2g acrylic resin film former, 1g butadiene resin film former, 2g polyurethane film former, and continue stirring for 2 hours, to obtain nanometer superhydrophobic materials.

[0021] Spray the nano-superhydrophobic material prepared above on...

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PUM

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Abstract

The invention relates to a preparation method of a superhydrophobic nanomaterial. The preparation method comprises steps as follows: firstly, nano silica is ultrasonically dispersed in a part of an absolute ethyl alcohol solution, then, a silane coupling agent is added to a mixed solution to be rapidly stirred for 2 h (at the water bath temperature of 60 DEG C), the mixture is aged at the room temperature for 24 h, and a solution A is obtained; secondly, the silane coupling agent is added to the remaining absolute ethyl alcohol solution to be rapidly stirred for 2 h, fumed silica is added, andthe mixture is continuously stirred for 30 min, finally, perfluorinated silane is slowly dropwise added, the mixture is stirred intensely for 5 h, and a solution B is obtained; finally, the solutionA and the solution B are mixed and stirred for 2 h, a film-forming agent is added, the mixture is continuously stirred for 2 h, and the superhydrophobic nanomaterial is obtained. The preparation method has the advantages as follows: the superhydrophobic nanomaterial has stable and durable superhydrophobic performance, is non-corrosive, free from environmental pollution, low in cost and wide in application range and adopts a simple process.

Description

technical field [0001] The invention belongs to the field of preparation of hydrophobic materials, in particular to a preparation method of nanometer super-hydrophobic materials. Background technique [0002] In recent years, superhydrophobic materials have attracted much attention. Superhydrophobic material is a kind of material based on nanometer size. When the hydrophobic surface is roughened by constructing micro-nano hierarchical structure, superhydrophobic effect can be produced. Usually, the surface with a water contact angle of more than 150° and a rolling angle of less than 10° is called a superhydrophobic surface. The common superhydrophobic phenomenon is the self-cleaning phenomenon on the surface of the lotus leaf. The water droplets falling on the surface of the lotus leaf can roll freely. Some particles on the surface of the lotus leaf can be taken away by the rolling water droplets, which endows the lotus leaf with the ability to discharge sludge without stai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D133/00C09D5/16C09D7/61
CPCC08G77/24C08G77/26C08K2201/011C08K2201/014C08L2205/03C08L2205/035C09D4/00C09D5/1675C09D5/1687C09D133/00C09D183/08C08L33/00C08K3/36C08L83/08C08L9/00C08L75/04
Inventor 孙文明刘永定其他发明人请求不公开姓名
Owner 北京中科东亚纳米材料科技有限公司
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