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Super-hydrophobic oleophobic coating, preparation method thereof and use method

A super-hydrophobic and oleophobic technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor wear resistance and corrosion resistance, inability to use on a large scale, harsh conditions, etc. Simple and quick to use, excellent superhydrophobicity and oleophobicity, and good wear resistance

Active Publication Date: 2017-06-30
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods for preparing superhydrophobic and oleophobic surfaces include sol-gel method, chemical vapor deposition, phase separation, electrodeposition, and laser engraving, etc. These methods often have disadvantages such as troublesome preparation and harsh conditions.
[0004] Among the currently known methods, the prepared superhydrophobic and oleophobic surfaces cannot be used on a large scale due to poor performance such as hydraulic shock resistance, wear resistance, and corrosion resistance.

Method used

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  • Super-hydrophobic oleophobic coating, preparation method thereof and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of superhydrophobic oleophobic fluorocarbon coating of the present invention

[0030] 1. Composition

[0031] Component A: 2g of E-51 epoxy resin, 4g of fluorinated graphite, 0.5g of ammonium carbonate, 0.5g of polyoxyethylene ether, 30mL of ethanol; the fluorine content of fluorinated graphite is 50%, and the average particle size of fluorinated graphite particles is The diameter is 100nm.

[0032] Component B: 0.6 g of aminoethylpiperazine, 5 mL of ethanol.

[0033] 2. Preparation method

[0034] Preparation of Component A: First, E-51 epoxy resin (2g) was dissolved in ethanol (5mL) to obtain an ethanol solution of epoxy resin; graphite fluoride (4g) was dispersed in ethanol (25mL), and Use an electromagnetic stirrer to disperse at a speed of 600r / min for 20min, then add ammonium carbonate (0.5g) and polyoxyethylene ether (0.5g) to the fluorinated graphite dispersion, and then use an electromagnetic stirrer to disperse at a speed of 600r / min 20min to obtain...

Embodiment 2

[0039] The difference between the superhydrophobic and oleophobic fluorocarbon coating of Example 2 and Example 1 is only that the graphite fluoride content in component A is 2 g, and the rest of the composition and preparation method are the same.

[0040] Referring to Example 1, component A and component B were evenly mixed and coated on a wooden board, and the coating sample obtained after curing was subjected to a performance test, and the test results are shown in Table 1.

Embodiment 3

[0042] The difference between the superhydrophobic and oleophobic fluorocarbon coating of Example 3 and Example 1 is only that the fluorine content of graphite fluoride in component A is 30%, and the rest of the composition and preparation method are the same.

[0043] Referring to Example 1, component A and component B were evenly mixed and coated on a wooden board, and the coating sample obtained after curing was subjected to a performance test, and the test results are shown in Table 1.

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Abstract

The invention discloses a super-hydrophobic oleophobic fluorocarbon coating which comprises a component A and a component B. The component A comprises epoxy resin, graphite fluoride, ammonium carbonate, polyoxyethylene ether and an organic solvent a, and the mass ratio of the epoxy resin, the graphite fluoride, the ammonium carbonate to the polyoxyethylene ether is 1:(0.5-3):(0.25-0.5):(0.25-0.5). The component B comprises a curing agent and an organic solvent b, wherein the curing agent is aminoethyl piperazine, and the mass ratio of the epoxy resin to the curing agent is 10:(2-4). The invention further discloses a preparation method and a use method of the super-hydrophobic oleophobic fluorocarbon coating. The super-hydrophobic oleophobic fluorocarbon coating has excellent super-hydrophobic oleophobic performances, good wear resistance, water flow impact resistance, corrosion resistance and adhesion performance and can be widely used.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a superhydrophobic and oleophobic fluorocarbon coating and a preparation method and application method thereof. Background technique [0002] The superhydrophobic phenomenon originates from human beings' understanding of the lotus leaf effect in nature. A superhydrophobic and oleophobic surface refers to a surface with a water contact angle of greater than 150° and a rolling angle of less than 10°. The phenomenon of superhydrophobicity has attracted widespread attention in recent years, and studies have shown that the preparation of superhydrophobic and oleophobic surfaces usually needs to meet two conditions: the use of low surface energy substances and the construction of micro-nano secondary structures on the surface of materials. [0003] The special surface wettability of superhydrophobic and oleophobic surfaces makes them have broad application prospects in wa...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12C08G59/50
CPCC08G59/5073C09D5/08C09D7/62C09D7/65C09D7/68C09D163/00C08L71/02C08K3/04C08K3/26
Inventor 杨先金张富龙蒋盼盼桑晴晴赵兴牛文利张帅
Owner EAST CHINA UNIV OF SCI & TECH
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