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Method for preparing durable super-hydrophobic material

A super-hydrophobic and durable technology, applied in separation methods, chemical instruments and methods, metal material coating processes, etc., can solve the problems of loss of hydrophobic performance, high production cost, easy detachment of super-hydrophobic surface layer, etc., to achieve a wide range of applications , good durability, good performance in a wide range of applications

Inactive Publication Date: 2013-07-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of high production cost and easy detachment of the superhydrophobic surface layer in the existing method for preparing superhydrophobic materials, thereby providing a method for preparing durable superhydrophobic materials.

Method used

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  • Method for preparing durable super-hydrophobic material
  • Method for preparing durable super-hydrophobic material
  • Method for preparing durable super-hydrophobic material

Examples

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specific Embodiment approach 1

[0010] Specific embodiment one: a kind of preparation method of durable superhydrophobic material of this embodiment is carried out according to the following steps:

[0011] 1. Preparation of nanoparticle dispersion: Ultrasonic disperse nanoparticles with a particle size of 10nm to 1000nm in water at a frequency of 24KHz to 40KHz to prepare a dispersion with a concentration of nanoparticles of 2mg / mL to 20mg / mL 2. Prepare the composite material of the matrix and nanoparticles: adjust the pH of the dispersion liquid of the nanoparticles prepared in step 1 with a concentration of 2 mg / mL to 20 mg / mL to be 1 to 6 with hydrochloric acid to obtain a mixed solution, and then place the matrix in Completely soak in the mixed solution, and then add dopamine to the above mixed solution that completely soaks the matrix to obtain the final mixed solution, and the concentration of dopamine in the final mixed solution is 0.5mg / mL~3mg / mL, and finally the speed is 100rpm~1000rpm Stir for 6h ...

specific Embodiment approach 2

[0016] Embodiment 2: This embodiment differs from Embodiment 1 in that the nanoparticles described in Step 1 are metal oxide nanoparticles or inorganic nanoparticles. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: this embodiment is different from specific embodiment two in that: the metal oxide nanoparticles are ferric oxide nanoparticles or ferric oxide nanoparticles; the inorganic nanoparticles are silicon dioxide nanoparticles. Others are the same as in the second embodiment.

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Abstract

The invention relates to a method for preparing a durable super-hydrophobic material. The present invention is to solve the problem that conventional methods for preparing super-hydrophobic materials are high in production costs and super-hydrophobic surfaces are easy to fall off, thereby losing the hydrophobic performances. The method includes: first, preparing a nano particle dispersion liquid; second, preparing a composite material of a substrate and nano-particles; third, washing and drying; and fourth, soaking, washing and drying; namely obtaining the durable super-hydrophobic material. The invention has the advantages that: firstly, specialized expensive equipments and harsh experimental conditions are not needed in the preparation of the durable super-hydrophobic material by the method of the present invention, and the production cost is reduced; secondly, the durable super-hydrophobic material prepared by the invention is used in the oil water separation field, can be used repeatedly for 300 times or more, and has good durability performance. The present invention can be used for preparing the durable super-hydrophobic material.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic material. Background technique [0002] In recent years, the special hydrophobic interface properties of plant leaf surfaces in nature have attracted widespread attention. Hydrophobic properties refer to surfaces with a contact angle between the surface of a material and a water droplet greater than 90°, while superhydrophobic surfaces generally refer to a surface with a contact angle with water droplets greater than 150°. s surface. Superhydrophobic materials inspired by nature have extremely broad application prospects in national defense construction, industrial and agricultural production, and daily life. [0003] According to the existing research results on rough surface and wettability, the construction of superhydrophobic interface can be completed in two ways: one is to construct a rough structure on the surface of hydrophobic materials (the contact angle is greater than 90°)...

Claims

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Application Information

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IPC IPC(8): C08J9/40C08J7/00C08J7/06C03C17/23C23C24/00B01D17/022
Inventor 潘钦敏祝青楚盈陈宁
Owner HARBIN INST OF TECH
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