Super-hydrophobic material and preparation method thereof

A super-hydrophobic, matrix technology, applied in the direction of coatings, special surfaces, and devices for coating liquids on surfaces, can solve problems such as high cost, poor reliability, and unsuitability for glass surface treatment, and achieve low cost and excellent super-hydrophobic Performance, excellent anti-fingerprint effect

Active Publication Date: 2013-03-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the existing technical problems of preparing super-hydrophobic materials, the present invention requires sp

Method used

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  • Super-hydrophobic material and preparation method thereof
  • Super-hydrophobic material and preparation method thereof
  • Super-hydrophobic material and preparation method thereof

Examples

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preparation example Construction

[0029] The present invention provides a preparation method of ultra -hydrophobic material, which uses etching liquid to etch a micrometer or sub -micron structure on the surface of the substrate, and then forms nano -coating on the surface of the substrate surface with micrometer or sub -micron structure, so as to obtain the micro -nano structure of the ideal structureThen use a low -surface energy substance to modify the microfanan structure to obtain the ultra -hydrophobic material of the present invention. Specifically, the preparation method of the super hydrophobic material of the present invention, including the following steps:

[0030] Step 1. Use the etching solution to etch a micrometer or sub -micron structure on the surface of the substrate.

[0031] Micro -nano structures that prepare ultra -hydrophobic materials in existing technologies are usually set on the substrate to form a microfanan structure. 2 Granules and nano -level SIOs 2 The membrane layer of the particl...

Embodiment 1

[0055] Reference Figure 1-4 , This Example 1 is used to prepare ultra -hydrophobic glass;

[0056] The preparation method of hydrophobic glass in this embodiment 1 includes the following steps:

[0057] Step 1, first clean and dry the size of the size of 84 × 56 × 1.1 mm (4inch), evenly apply 25 μm paraffin film 2 on the surface of the glass 1;The etching area 11, the remaining areas are set to the coverage area 12, using laser carving patterns on the paraffin film 2 to remove the paraffin on the carved area 11, such as figure 1 and figure 2 It shows that 11 to the eclipse area 11 includes several uniformly distributed naked areas 13. The naked area 13 is round, with a radius of 5 μm, and the round heart distance of the two adjacent naked areas 13 is 30 μm; the concentration of 20WT%is 20WT%The surface of hydrogen fluoric acid water solution corrodes the glass surface, corrodes 5 minutes at room temperature (25 ° C), and the carved carved liquid corrodes without paraffin protectio...

Embodiment 2

[0061] The preparation method of the ultra -sparse glass of this embodiment 2 includes the following steps:

[0062] Step 1. First, clean and dry the size of the size of 95 × 53 × 1 mm (4.3inch), and evenly apply 20 μm paraffin film on the surface of the glass; set the area of the glass surface to be etched to etch to etched engravedThe area, the rest of the area is set in the coverage area, using laser carving patterns on the paraffin film to remove paraffin to the etching area.6500 μm 2 , The center distance of the two adjacent naked areas is 120 μm; the surface of the glass surface with a concentration of 25WT%of the hydrofluoric acid water is corroded, and the heating conditions (50 ° C) are corroded for 1min.An groove, the cross section of the groove is positive hexagonal, with an area of 6500 μm 2 The depth is 1 μm, the center distance of the two adjacent grooves is 120 μm, and then the paraffin in the coverage area is washed and dried to form a micron structure;

[0063] St...

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Abstract

The invention discloses a preparation method of a super-hydrophobic material. The preparation method includes firstly, etching to form a micrometer or sub-micrometer structure on the surface of a substrate by etching solution; secondly, forming a nano-coating layer on the surface of the substrate with the micrometer or sub-micrometer structure; and thirdly, preparing a low-surface energy substance layer on the nano-coating layer. The invention provides the super-hydrophobic material prepared by the preparation method. The super-hydrophobic material comprises a substrate with the surface having the micrometer or sub-micrometer structure, a nano-coating layer is formed on the surface of the substrate, and a low-surface energy substance layer is formed on the nano-coating layer. The preparation method with low cost is applicable to industrial production and glass surface processing, and the water contact angle of the super-hydrophobic material can be 150 degrees at least.

Description

Technical field [0001] The present invention involves the field of ultra -hydrophobic materials, and more specifically, it involves an ultra -hydrophobic material and its preparation methods. Background technique [0002] The infiltrationability of the material surface is an important performance of the material. Many physical and chemical processes, such as: friction, decentralization, bonding, adsorption, etc., are closely related to the infiltration of the material surface.Generally, the contact angle with water is greater than 150 °, and the solid surface with a rolling angle of less than 10 ° is considered to be an ultra -hydrophobic surface.Modify low -surface can modify agents.In recent years, the super hydrophilic surface with a contact angle with water greater than 150 ° has attracted great attention, because the super hydrophobic surface can be widely used in the fields of self -cleaning, ice -proof, anti -fog, waterproof, snowproof, corrosion resistance, such as: It ha...

Claims

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Application Information

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IPC IPC(8): B05D5/08B05D3/10C03C15/00C03C17/34C23F1/18
Inventor 罗迪恬周维
Owner BYD CO LTD
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