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Hydrophobic structure and preparation method thereof

A hydrophobic and method-based technology, applied in the direction of ion implantation plating, coating, metal material coating process, etc., can solve the problems of time-consuming vacuuming, insufficient wear resistance, thick thickness, etc., so as to save the cost of vacuuming Time, hardness and wear resistance protection, the effect of reducing manufacturing costs

Active Publication Date: 2007-07-04
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the hydrophobic angle of the prepared coating can reach up to 119 degrees, the coating has low hardness and insufficient wear resistance, and cannot provide protection for the underlying substrate.
[0012] It can be seen from the above-mentioned various disclosed prior art that the hydrophobicity of the coating film produced by the low-pressure or vacuum coating manufacturing method is generally not good. Even if a few hardness can reach 9H, the thickness is too thick due to the difficult control of the manufacturing method. As a result, the transparency is significantly reduced, and vacuuming is extremely time-consuming, and the coating area is limited by the size of the equipment, which cannot meet the large-area demand of the market
Although atmospheric plasma adopts dry manufacturing method to simplify the cost of coating time, equipment space, etc., there are no published documents or patents that have disclosed the direct application of atmospheric plasma in the coating of hydrophobic structures, although the aforementioned patents using atmospheric plasma It was mentioned in the previous case that the prepared coatings have different hydrophobicity angles. However, the hardness of the coatings is low and not wear-resistant, which cannot provide protection for the underlying substrate.

Method used

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  • Hydrophobic structure and preparation method thereof
  • Hydrophobic structure and preparation method thereof
  • Hydrophobic structure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Prepare a glass substrate with an area size of 6.5 cm×6.5 cm, and pretreat it with plasma generated by compressed dry air at a flow rate of 2 cubic meters per hour. Next, use tetraethoxysilane (TEOS) as the precursor, and helium (He) as the carrier to introduce through the introduction system, and directly coat the surface of the pretreated substrate after interacting with the plasma. SiO formed on 2 The water contact angle of the coating is 18 degrees. Please refer to FIG. 3A and FIG. 3B for the results, which respectively show the schematic diagram of the atomic force microscope of the rough surface 111 of the hard coating 11 of the hydrophobic structure 1 of the present invention, and the schematic diagram of the surface roughness curve, and the hard coating 11 formed by coating the surface of the substrate 10. Among them, the average surface roughness (Ra) of the rough surface 11 can reach 16.6nm.

Embodiment 2

[0045] After repeating the steps of Example 1, in the SiO 2 On the coating layer, heptadecafluorodecyltrimethoxysilane (FAS) was used as the precursor to be placed in a three-necked bottle, and then helium was used as a carrier to introduce into the bottle through the mouth of the three-necked bottle, and the above two gases The mixed gas is drawn from another bottle mouth, and after interacting with the plasma, it is directly coated on the surface of the substrate. Please refer to Figure 4A to Figure 4C for the results, which respectively show the schematic diagram of the atomic force microscope of the hydrophobic structure of the present invention, the surface roughness curve, and the schematic diagram of the hydrophobic angle test. After coating the rough surface of the hard coating 11 to form a hydrophobic coating 13, A hydrophobic structure 1 comprising a hard coating 11 and a hydrophobic coating 13 is formed, and the average surface roughness (Ra) of the hydrophobic stru...

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Abstract

The invention relates to a hydrophobic structure and the method for preparing the same. The method comprises forming coarse hard costing layer and hydrophobic layer on surface of base material by using atmospheric plasma coating technique. The structure in this invention is characterized by increased hardness and wear resistance, improved tranparancy, hydrophobic property, and lower cost because of usage of atmospheric plasma coating technique.

Description

technical field [0001] The invention relates to a base material surface modification technology, in particular to a hydrophobic structure formed by atmospheric plasma coating and a preparation method thereof. Background technique [0002] In recent years, due to people's general demand for thinning and miniaturization of various daily necessities, most industries have entered the era of nanotechnology. Therefore, it is found that the physical characteristics of many products have changed, and the innovative functions of many products have also been created. Stimulate research and development of innovative technologies. Taking general household products as an example, in addition to popular information and household appliances, the functions and applications of self-cleaning products have also been greatly improved due to the requirements for reducing maintenance costs and improving product quality for general household products. Its market needs, so the development of self-...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/22C03C17/00
Inventor 陈志玮林春宏郑总辉陈致源杨德辉蔡陈德吴清吉涂运泉张加强
Owner IND TECH RES INST
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