Super-hydrophobic microstructure

Abstract

A super-hydrophobic microstructure includes a base body on which plural protrusions with different heights are formed. Some of the protrusions with different heights construct at least one closed curve from the top view. The super-hydrophobic microstructure has the advantages of higher structural strength and lower cost, and is easy to be manufactured.

Description

technical field [0001] The present invention relates to a microstructure, in particular to a superhydrophobic microstructure. Background technique [0002] In nature, plants are always exposed to various sources of pollution, such as dust, sludge, organic bacteria or fungi, etc. The leaves of some plants have complex nano- or micro-scale structures, which not only have the function of self-cleaning, but also can prevent infection by bacteria and pathogens. Once the leaves are polluted, as long as they are baptized by a heavy rain, they can be restored to a new look. Among them, the most well-known is the lotus effect of lotus leaves. [0003] The lotus effect is a term coined by German botanists Barthlott and Neinhuis in 1997 when they studied the surface phenomenon of a lotus leaf. They used a scanning electron microscope (SEM) to observe the surface of a lotus leaf1, such as Figure 1A shown. They found that the lotus leaf surface 1 has epidermal cells with pillars of ...

AI Technical Summary

Problems solved by technology

Since there is air in the unconnected holes in the mold 1a, the material will not be able to fill the holes in the mold 1a during the transfer printing process.

Therefore, the finished product produced by transfer printing will be different from the design

In addition, the rough surface or pillar-like structure on the natural lotus leaf does not have the push-out angle of the general mold, which will also cause damage to the structure during the transfer printing process.

[0009] Second, the strength of the protruding columnar structure is poor, and the construction is insufficient

Due to the poor strength of the protruding columnar structure, its construction is bound to be poor and easy to be damaged

[0010] Third, the columnar structure will lose its hydrophobicity in some cases

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