Anti-fouling substrate and preparation method thereof

Abstract

The invention discloses an anti-fouling substrate, which comprises a substrate. The surface of the substrate at least has one function region. At least a part of the function region has a coating layer. The function region has a plurality of bumps. The average height of the bumps is 10-2000 nm; the average upper surface area of the bumps is 78-1.964*10<5> nm<2>; and the average interval between adjacent two bumps is 7-5000 nm. The coating layer is made of a hydrophobic material. The invention also discloses a preparation method of the anti-fouling substrate. The prepared anti-fouling substratehas higher anti-fouling performance and abrasion resistance, and the substrate has multiple choices; the anti-fouling substrate can realize etching on the substrate surface directly, so that the problem of poor surface abrasion resistance can be solved; meanwhile, by controlling surface etching depth, sample surface appearance can be controlled; and the preparation method of the anti-fouling substrate is low in production cost, simple in process and can realize large-scale batch production.

Description

technical field [0001] The invention relates to an antifouling material, in particular to an antifouling substrate and a preparation method thereof. Background technique [0002] The surface of the antifouling material generally has a hydrophobic surface, and the hydrophobic surface generally refers to a surface whose contact angle between a solid surface and water is greater than 120°. Since the contact area between the hydrophobic surface and the water droplet is very small, the water droplet rolls off the surface very easily. Therefore, the hydrophobic surface not only has the function of self-cleaning, but also has the functions of anti-current conduction, anti-corrosion, waterproof, anti-fog, anti-virus, anti-snow, anti-frost, anti-adhesion, anti-pollution, etc. It has broad application prospects in fields such as biomedicine, daily necessities and packaging, transportation tools, and microanalysis. [0003] In order to make the samples have anti-fouling function, sup...

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Problems solved by technology

[0003] In order to make the samples have anti-fouling function, superhydrophobic coatings are mostly prepared on the surface of the samples, but the samples prepared in this way have the problem of poor surface wear resistance, and it is difficult to maintain the original shape of the sample surface after repeated friction

In order to make the surface of the sample wear-resistant, in the traditional preparation process, the convex array is usually implanted on the surface of the substrate through a specific process, and the convex array forms an interface bond with the substrate. After repeated friction, the convex array is easily removed from the substrate. Surface peeling, which easily leads to poor wear resistance of the sample surface

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