Method for preparing wear-resistant superhydrophilic underwater super oleophobic surface on basis of swelling method

An underwater super-oleophobic and super-hydrophilic technology, which is applied in the direction of surface coating liquid devices, special surfaces, coatings, etc., can solve the problem of poor wear resistance, super-hydrophilic underwater super-oleophobic surface preparation process is cumbersome and other problems, to achieve the effect of easy availability of raw materials, excellent mechanical stability, and improved mechanical life

Active Publication Date: 2017-05-10
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of cumbersome preparation process and poor wear resistance of the existing superhydrophilic underwate

Method used

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  • Method for preparing wear-resistant superhydrophilic underwater super oleophobic surface on basis of swelling method
  • Method for preparing wear-resistant superhydrophilic underwater super oleophobic surface on basis of swelling method
  • Method for preparing wear-resistant superhydrophilic underwater super oleophobic surface on basis of swelling method

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specific Embodiment approach 1

[0033] Embodiment 1: In this embodiment, a method for preparing a wear-resistant super-hydrophilic underwater super-oleophobic surface based on the swelling method is completed in the following steps:

[0034] 1. Preparation of inorganic particle coatings:

[0035] mixing nylon, hydrophilic inorganic particles and 88% by mass of formic acid to obtain a coating containing inorganic particles;

[0036] The mass ratio of nylon and hydrophilic inorganic particles is 1:(0.5-20); the total mass percentage of nylon and hydrophilic inorganic particles in the coating containing inorganic particles is 10%-55%;

[0037] 2. Spray glue layer:

[0038] Spray the adhesive evenly on the surface of the substrate to obtain a uniform adhesive layer, and then dry until the adhesive layer is completely cured to obtain an adhesive-coated substrate;

[0039] The adhesive is an adhesive that can be swelled by formic acid or a polymer that can be swelled by formic acid;

[0040] 3. Dip coating of i...

specific Embodiment approach 2

[0048] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the hydrophilic inorganic particles described in step 1 are SiO 2 Particles, TiO 2 Particle or BaSO 4 particle. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0049] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the nylon described in step 1 is nylon 6,6, nylon 6 or nylon 4,6. . Others are the same as in the first or second embodiment.

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Abstract

The invention provides a method for preparing a wear-resistant superhydrophilic underwater super oleophobic surface on the basis of a swelling method, and relates to a preparation method of a wear-resistant superhydrophilic underwater super oleophobic coating. The method aims at solving the problems that the existing preparation process of the superhydrophilic underwater super oleophobic surface is complicated, and the wear-resistant performance is poor. The method comprises the following steps of 1, preparing inorganic particle paint; 2, spraying and coating a glue layer; 3, soaking and coating inorganic particle paint, and completing the method for preparing the wear-resistant superhydrophilic underwater super oleophobic surface on the basis of the swelling method. The method provided by the invention belongs to the method for preparing the wear-resistant superhydrophilic underwater super oleophobic surface on the basis of the swelling method.

Description

technical field [0001] The invention relates to a preparation method of a wear-resistant superhydrophilic underwater superoleophobic coating. Background technique [0002] Superhydrophilic surfaces have been widely synthesized and applied to different substrates in recent years due to their important applications in the fields of anti-fog, self-cleaning, enhanced boiling heat transfer, and oil-water separation. As far as most superhydrophilic surfaces are concerned, they also exhibit highly oleophobic or superoleophobic properties underwater due to the strong affinity of the surface for water. However, most of the traditional methods for preparing superhydrophilic surfaces use surface chemical modification or deposit hydrophilic materials with poor mechanical strength on the surface. For example, the article "A novel superhydrophilic and underwater superoleophobic hydrogel-coated mesh for oil / water separation" published on page 4270 of the 23rd issue of 2011 on Advanced Mat...

Claims

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Application Information

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IPC IPC(8): C03C17/38B05D5/08B05D1/18
CPCB05D1/18B05D5/08B05D2401/10B05D2505/00C03C17/38
Inventor 王成毓张文博
Owner NORTHEAST FORESTRY UNIVERSITY
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