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Design method of anisotropic super-hydrophobic surface of common nepenthes-imitating sliding area

A super-hydrophobic surface and anisotropic technology, applied in design optimization/simulation, special data processing applications, etc., can solve problems such as lack of anisotropy, outdated bionic prototypes, etc.

Active Publication Date: 2020-08-28
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, although the existing superhydrophobic surface design methods can realize the regulation and control of the designed superhydrophobic surface by adjusting the structural characteristic parameters, there are outstanding problems such as outdated bionic prototypes and lack of anisotropy.

Method used

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  • Design method of anisotropic super-hydrophobic surface of common nepenthes-imitating sliding area
  • Design method of anisotropic super-hydrophobic surface of common nepenthes-imitating sliding area
  • Design method of anisotropic super-hydrophobic surface of common nepenthes-imitating sliding area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: Step 1, characterize the micro-morphological structure parameters of the slip zone of Nepenthes. Using a scanning electron microscope and a three-dimensional white light interferometer to observe the surface microtopography of the slip zone of Nepenthes, and analyze and extract the characteristic parameters of the microtopography. Specifically include: the height, length, width, spacing, and density of the lunate body in the slip zone of Nepenthes, as well as the height and area ratio of the waxy crystal layer.

[0032] Nepenthes alata was selected as the bionic prototype, and the testing and characterization instruments used scanning electron microscope and three-dimensional white light shape interferometer. For Nepenthes red bottle leaf cages, samples with a length and width of 10 mm were cut from the slip area, dried by critical point drying, and then pasted on the experimental bench with double-sided adhesive tape; scanning electron microscopy and thre...

Embodiment 2

[0046] Embodiment 2: Step 1, characterizing the micro-morphological structure parameters of the slip zone of Nepenthes. Using a scanning electron microscope and a three-dimensional white light interferometer to observe the surface microtopography of the slip zone of Nepenthes, and analyze and extract the characteristic parameters of the microtopography. Specifically, it includes: the height, length, width, spacing, and density of the lunate body in the slip zone of Nepenthes, as well as the height and area ratio of the waxy crystal layer and other structural characteristics.

[0047]Nepenthes alata was selected as the bionic prototype, and the testing and characterization instruments used scanning electron microscope and three-dimensional white light shape interferometer. For Nepenthes red bottle leaf cages, samples with a length and width of 10 mm were cut from the slip area, dried by critical point drying, and then pasted on the experimental bench with double-sided adhesive ...

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Abstract

The invention discloses an anisotropic super-hydrophobic surface design method of a common nepenthes-imitated sliding area. A scanning electron microscope and a three-dimensional white light morphology interferometer are used for carrying out micro-morphology observation on the common nepenthes sliding area and obtaining micro-morphology structure characteristic parameters; establishing an anisotropic super-hydrophobic surface bionic model imitating a common nepenthes slippage region according to the extracted micro-topography structure characteristic parameters; based on a Cassie-Baxter model, calculating a numerical relationship between anisotropic super-hydrophobic surface micro-topography structure characteristic parameters of a common nepenthes-imitating sliding region and a super-hydrophobic function; according to the derived numerical relationship, the super-hydrophobic effect of the anisotropic super-hydrophobic surface imitating the common nepenthes slippage region is regulated and controlled by regulating and controlling the characteristic parameters of the micro-morphology structure. According to the design method, controllable design of the super-hydrophobic effect canbe achieved, the super-hydrophobic effect of the designed super-hydrophobic surface can be regulated and controlled, and the design method further has the characteristics of anisotropy of the super-hydrophobic effect and the like.

Description

technical field [0001] The invention belongs to the field of super-hydrophobic surface design, in particular to a design based on scanning electron microscope and three-dimensional shape interferometer to observe and extract the micro-topography structure of the nepenthes slip zone with super-hydrophobic wetting characteristics and obtain characteristic parameters. , forming a superhydrophobic surface design method with adjustable superhydrophobic efficacy and anisotropic superhydrophobic efficacy. Background technique [0002] A superhydrophobic surface refers to a micro-nano structured surface with a static contact angle greater than 150° and a rolling angle less than 10°. During the long-term natural evolution of organisms, material surfaces with excellent superhydrophobic properties have been formed, such as the slip zone of nepenthes, water strider feet, and the surface of lotus leaves. The surface microstructure of these animals and plants can store air, thereby reduc...

Claims

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Application Information

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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 王立新张硕研
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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