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Long-acting hydrophobic-oleophobic surface treatment process

A hydrophobic and oleophobic, surface treatment technology, used in special surfaces, pretreated surfaces, devices for coating liquids on surfaces, etc., can solve the problems of slow deposition speed, poor wear resistance, high cost, and achieve good hydrophobic and oleophobic performance. , The process is simple and easy, and the effect of good friction resistance

Active Publication Date: 2016-08-17
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of physical vapor deposition to prepare hydrophobic coatings is that no chemical reaction occurs during the deposition process, so the coating has poor adhesion, poor wear resistance and short service life.
The chemical vapor deposition preparation reaction gas is easy to cause cracking, which affects the hydrophobic effect, and the deposition speed is slow and the cost is high
[0004] In the prior art, the hydrophobic and oleophobic layer obtained without etching treatment has disadvantages such as poor friction resistance and poor anti-corrosion effect. In view of this, the present invention proposes a long-term hydrophobic and oleophobic surface treatment process, and this case is thus produce

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A long-term hydrophobic and oleophobic surface treatment process, comprising the following steps:

[0024] 1. Preparation of hydrophilic nano-silica sol: Ethyl orthosilicate: absolute ethanol: distilled water: ammonia water according to the molar ratio = 1:6:4:0.05, and ethyl orthosilicate, absolute ethanol and distilled water Mix evenly, add ammonia solution under stirring with a magnetic stirrer until the pH is 9-10, stir for 2 hours after the dropwise addition to carry out hydrolysis and condensation reaction, and stand overnight for aging reaction to obtain transparent nano-silica sol for later use.

[0025] Second, substrate etching: immerse the copper substrate in 10% H 2 o 2 The solution was etched for 30 min, and a uniform rough layer was formed on the surface.

[0026] 3. Substrate cleaning: First, wipe off the visible pollutants on the surface of the etched copper sheet with a dust-free cloth dipped in alcohol, and then place the cleaned copper sheet in a pu...

Embodiment 2

[0034] A long-term hydrophobic and oleophobic surface treatment process, comprising the following steps:

[0035] 1. Preparation of hydrophilic nano-silica sol: Ethyl orthosilicate: absolute ethanol: distilled water: ammonia water according to the molar ratio = 1:6:4:0.05, and ethyl orthosilicate, absolute ethanol and distilled water Mix evenly, add ammonia solution under stirring with a magnetic stirrer until the pH is 9-10, stir for 2 hours after the dropwise addition to carry out hydrolysis and condensation reaction, and stand overnight for aging reaction to obtain transparent nano-silica sol for later use.

[0036] 2. Substrate etching: The ABS electroplated product is etched by plasma for 10 minutes to form a uniform rough layer on the surface.

[0037] 3. Substrate cleaning: First, wipe off the visible pollutants on the surface of the etched ABS electroplating product with a dust-free cloth dipped in alcohol, and then place the cleaned copper sheet in a pure solution of ...

Embodiment 3

[0045] A long-term hydrophobic and oleophobic surface treatment process, comprising the following steps:

[0046] 1. Preparation of hydrophilic nano-silica sol: Ethyl orthosilicate: absolute ethanol: distilled water: ammonia water according to the molar ratio = 1:6:4:0.05, and ethyl orthosilicate, absolute ethanol and distilled water Mix evenly, add ammonia solution under stirring with a magnetic stirrer until the pH is 9-10, stir for 2 hours after the dropwise addition to carry out hydrolysis and condensation reaction, and stand overnight for aging reaction to obtain transparent nano-silica sol for later use.

[0047] 2. Substrate etching: The ceramic product is etched by ultraviolet light for 30 minutes to form a uniform rough layer on the surface.

[0048] 3. Substrate cleaning: First, wipe off the visible pollutants on the surface of the etched ceramic product with a dust-free cloth dipped in alcohol, and then place the cleaned copper sheet in a pure solution of ethanol-ac...

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Abstract

The invention discloses a long-acting hydrophobic-oleophobic surface treatment process which comprises the following steps: 1. etching the surface of a substrate to obtain a micro-nano structure with coarse surface; 2. dipping and coating hydrophilia nano silicon dioxide sol on the surface of the etched substrate, and drying to obtain a transparent silicon dioxide film; and 3. dipping and coating perfluor acid anhydride alky triethoxy silane on the surface of a joint layer, and drying to obtain a hydrophobic-oleophobic layer. According to the long-acting hydrophobic-oleophobic surface treatment process, the hydrophobic-oleophobic layer with good compactness can be obtained, so that better hydrophobic-oleophobic performance and stronger wear resistance can be achieved by surface treatment.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a long-acting hydrophobic and oleophobic surface treatment process. Background technique [0002] In the prior art, one of the preparation methods of hydrophobic and oleophobic film is to prepare by dipping and then baking. The disadvantage of this method is that the process is relatively long, it needs to consume more raw materials, and the baking temperature is relatively high. However, ordinary plastic materials cannot High temperature resistance, resulting in higher cost and affect the use. [0003] The second preparation method of the hydrophobic and oleophobic film is to use physical vapor deposition (PVD) or chemical vapor deposition (CVD). The disadvantage of preparing hydrophobic coatings by physical vapor deposition is that no chemical reaction occurs during the deposition process, so the coating has poor adhesion, poor wear resistance and short service life....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D3/00B05D3/14B05D3/10B05D7/00B05D1/18C08J7/06C08L55/02
CPCB05D1/18B05D3/002B05D3/10B05D3/142B05D5/00B05D7/544B05D2350/33C08J7/06C08J2355/02
Inventor 金碧曹朝贵连华景张先超李明仁
Owner XIAMEN RUNNER IND CORP
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