Method for preparing super-amphiphobic nano-film on bamboo surface in bionic way

A nano-film, super-amphiphobic technology, which is applied in wood treatment, wood heating, wood impregnation, etc., can solve the problems such as the super-amphiphobic function on the surface of bamboo that has not yet been found, and achieve the effect of easy operation and simple preparation process.

Inactive Publication Date: 2015-08-19
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no corresponding research report on the

Method used

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  • Method for preparing super-amphiphobic nano-film on bamboo surface in bionic way
  • Method for preparing super-amphiphobic nano-film on bamboo surface in bionic way
  • Method for preparing super-amphiphobic nano-film on bamboo surface in bionic way

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Embodiment 1

[0022] A method for biomimetic preparation of super-amphiphobic nano-films on the surface of bamboo, comprising the following steps:

[0023] 1. Dissolve 0.75M zinc acetate in methanol to prepare a solution, mix it with 1 volume of ethanolamine solution, and stir at 60°C for 30 minutes to prepare ZnO colloid; 2. Form a layer of ZnO colloid on the surface of bamboo by pulling and dipping After drying at 80°C, a layer of ZnO gel film can be formed on the surface of bamboo, and the process from dipping to drying is repeated 5 times; 3. Put the prepared bamboo block loaded with ZnO gel film into a layer containing 0.1 M zinc nitrate, 0.1M hexamethylenetetramine and 0.04M sodium hexadecyl sulfate mixed solution, moved into the reaction kettle, reacted at 95°C for 1h, then took out the bamboo pieces with nano-ZnO growth, and washed them with deionized water Wash for 30 minutes and dry at 50°C for 24 hours to obtain bamboo pieces loaded with nano-ZnO; 4. Put the bamboo pieces loaded ...

Embodiment 2

[0025] A method for biomimetic preparation of super-amphiphobic nano-films on the surface of bamboo, comprising the following steps:

[0026] 1. Dissolve 0.75M zinc acetate in methanol to prepare a solution, mix it with 1 volume of ethanolamine solution, and stir at 60°C for 30 minutes to prepare ZnO colloid; 2. Form a layer of ZnO colloid on the surface of bamboo by pulling and dipping After drying at 80°C, a layer of ZnO gel film can be formed on the surface of bamboo, and the process from dipping to drying is repeated 8 times; 3. Put the prepared bamboo block loaded with ZnO gel film into a layer containing 0.2 M zinc nitrate, 0.2M hexamethylenetetramine and 0.05M hexadecyl sodium sulphate mixed solution, moved into the reaction kettle, reacted at 90°C for 2h, then took out the bamboo pieces with nano-ZnO, and washed them with deionized water Wash for 30 minutes and dry at 50°C for 24 hours to obtain bamboo pieces loaded with nano-ZnO; 4. Put the bamboo pieces loaded with n...

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Abstract

The invention discloses a method for preparing a super-amphiphobic nano-film on a bamboo surface in a bionic way. The method comprises the following steps: preparing ZnO colloid; forming a layer of ZnO gel on the bamboo surface, and forming a layer of ZnO gel film on the bamboo surface by drying; putting a prepared bamboo block loaded with the ZnO gel film into a mixed solution containing zinc nitrate, hexamethylene tetramine and cetyl sodium sulfate, moving into a reaction kettle, taking the bamboo block on which nanometer ZnO grows out, cleaning the bamboo block with deionized water for 30 minutes, drying to obtain a bamboo block loaded with the nanometer ZnO; putting the obtained bamboo block into a mixed solution of absolute ethyl alcohol, magnetically stirring for an appropriate time, taking the bamboo block out, cleaning with absolute alcohol for several times, and drying at the temperature of 80 DEG C for 12 hours. The super-amphiphobic nano-film has the advantages of self-cleaning property, oil stain resistance and the like. Meanwhile, the method is simple in preparation process, is easy to operate, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for biomimetic preparation of super-amphiphobic nano-films, in particular to a method for bionic preparation of super-amphiphobic nano-films on the surface of bamboo. Background technique [0002] Surface wettability is one of the important properties of solid materials, and plays an important role in anti-fog, self-cleaning, oil-water separation, photocatalysis and other fields. The wettability of the material surface can be measured by the contact angle. The contact angle greater than 150° is defined as superhydrophobic, and the contact angle less than 5° is defined as superhydrophilic. Materials with special super-amphiphobic surface properties play a key role in many industrial applications, so more and more researchers are committed to understanding and preparing super-amphiphobic surface materials. Bamboo is a material sensitive to environmental conditions and is easily damaged by the external environment, such ...

Claims

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Application Information

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IPC IPC(8): B27K3/02B27K3/52B27K5/04
CPCB27K3/02B27K3/50B27K3/52B27K5/001B27K5/04B27K9/002B27K2240/00B27K2240/70
Inventor 金春德孙庆丰李景鹏姚秋芳严晨晔
Owner ZHEJIANG FORESTRY UNIVERSITY
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