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A kind of superhydrophobic film and preparation method thereof

A super-hydrophobic, thin-film technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of expensive raw materials, limited applications, and harsh preparation conditions for super-hydrophobic membranes, and achieve increased market promotion, easy operation, and environmental protection. less demanding effects

Active Publication Date: 2020-07-14
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw materials used to prepare superhydrophobic membranes by the phase inversion method are relatively expensive, and the preparation conditions are harsh, which limits its further application.

Method used

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  • A kind of superhydrophobic film and preparation method thereof
  • A kind of superhydrophobic film and preparation method thereof
  • A kind of superhydrophobic film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of preparation method of simple and economical superhydrophobic film comprises the following steps;

[0043] 1) Combusting soybean oil to obtain the preparation of carbon nano-deposits: at room temperature, put soybean oil into a porcelain boat and use cotton thread as a wick, and use a 500ml beaker as a receiving container for carbon nanoparticles after being ignited; the collected carbon nano-deposits After ball milling, put it into a vacuum oven for preservation;

[0044] 2) Mix 0.01 g of carbon nano-sediment and 0.02 g of sodium stearate, add 100 ml of deionized water and stir at 85°C for 10 min, and ultrasonically disperse the prepared solutions for 0.5 h to prepare carbon nano-sediment / hard Sodium fatty acid film precursor solution;

[0045] 3) Preparation of carbon nano-deposit / stearic acid composite precursor film: take 5ml of carbon nano-deposit / sodium stearate film precursor solution and sonicate for 10min, then add 0.1ml of glacial acid and sonicate f...

Embodiment 2

[0048] A kind of preparation method of simple and economical superhydrophobic film comprises the following steps;

[0049] 1) Preparation of carbon nano-deposits obtained by burning rapeseed oil: at room temperature, put rapeseed oil into a porcelain boat and use cotton thread as a wick, and use a 500ml beaker as a receiving container for carbon nanoparticles after being ignited; the collected carbon After the nano-deposits are ball-milled, they are stored in a vacuum drying oven;

[0050] 2) Mix 0.01 g of carbon nano-sediment and 0.2 g of sodium stearate, add 100 ml of deionized water and stir at 50°C for 20 min, and disperse the prepared solution by ultrasonic at 500 Hz for 1 h to prepare carbon nano-sediment / hard Sodium fatty acid film precursor solution;

[0051] 3) Preparation of carbon nano-deposit / stearic acid composite precursor film: take 10ml of carbon nano-deposit / sodium stearate film precursor solution and sonicate at 500Hz for 100min, then add 5ml of glacial acid...

Embodiment 3

[0054] A kind of preparation method of simple and economical superhydrophobic film comprises the following steps;

[0055] 1) Preparation of carbon nano-deposits obtained by burning peanut oil: at room temperature, put peanut oil into a porcelain boat and use cotton thread as a wick, and use a 500ml beaker as a receiving container for carbon nanoparticles after being ignited; the collected carbon nano-deposits are ball milled Afterwards, put into the vacuum drying oven and preserve;

[0056] 2) Mix 0.1 g of carbon nano-sediment and 0.02 g of sodium stearate, add 100 ml of deionized water and stir at 90°C for 20 min, and disperse the prepared solution by ultrasonic at 50 Hz for 2 h to prepare carbon nano-sediment / hard Sodium fatty acid film precursor solution;

[0057] 3) Preparation of carbon nano-deposit / stearic acid composite precursor film: Take 5ml of carbon nano-deposit / sodium stearate film precursor solution and sonicate at 50Hz for 80min, then add 2ml of glacial acid a...

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Abstract

The invention provides a superhydrophobic film and a preparation method thereof. The preparation method comprises the following steps: (A) mixing and stirring carbon nano-deposit, sodium stearate andwater, and performing ultrasonic treatment to obtain a film precursor solution; (B) ultrasonically treating the film precursor solution for 10 min or longer, adding glacial acetic acid for drying to obtain a composite precursor film, and adding water dropwise for heat treatment. The superhydrophobic film prepared in the embodiment has the advantages that raw materials are naturally sourced, the obtained film has various outstanding properties and has ultrahigh hydrophobic capacity and better acid-base resistance, so that market promotion strength of the film is increased virtually, and greatereconomic benefits are created.

Description

technical field [0001] The invention relates to the technical field of hydrophobic material processing, in particular to a superhydrophobic film and a preparation method thereof. Background technique [0002] When raindrops fall on the surface of the lotus leaf, the raindrops will roll away and wash away the dust on the surface of the lotus leaf. This common phenomenon in nature has aroused great interest of scientists and is called the self-cleaning effect. Scientists define materials with a contact angle of more than 150° and a rolling angle of less than 10° as superhydrophobic materials. Superhydrophobic materials have good self-cleaning and superhydrophobic abilities, so they have broad application prospects in the fields of environmental protection and science and technology, and have attracted people's attention. To achieve superhydrophobicity, two aspects must be met: one is to construct a micro-rough structure on the surface of the material, and the other is to cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 张玉红何培新方正平夏蒙
Owner HUBEI UNIV