Preparation method of conductive bionic gecko adhesive tape

The technology of gecko and tape is applied in the field of preparation of imitation gecko foot bristles, which can solve the problems of complicated operation, high cost, and difficulty in demoulding, and achieve the effects of simple operation, low cost, and easy separation from the adsorption surface.

Inactive Publication Date: 2014-02-05
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of microarrays by in-situ electrochemical etching is a simple, convenient, low-cost, and parameter-controllable method. This method directly etches the prepared gecko foot microarrays on the copper sheet metal without removing the template, which solves the problem of The existing methods have problems of high cost, complicated operation, and difficult demoulding, and it is expected to realize industrial production

Method used

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  • Preparation method of conductive bionic gecko adhesive tape
  • Preparation method of conductive bionic gecko adhesive tape
  • Preparation method of conductive bionic gecko adhesive tape

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specific Embodiment approach 1

[0020] Specific implementation mode one: as figure 2 As shown, this embodiment prepares Cu(OH) according to the following steps 2 / PANI Composite Imitation Gecko Foot Microarray:

[0021] Step 1: Preparation of Cu(OH) by in-situ electrochemical etching 2 microarray

[0022] The electrochemical reaction cell for preparing CuO pine needle arrays by in-situ electrochemical etching method is a one-chamber electrolytic cell (see figure 1 ). The copper strip (11 cm × 11 cm) is the working electrode (WE), and the platinum electrode (area A ≈ 1.0 cm 2 ) is the counter electrode (CE), the saturated calomel electrode is the reference electrode (RE), and sodium hydroxide (NaOH) is the electrolyte. Before the experiment, argon gas was passed for about 20 min to remove the gas in the electrolyte. The control current density range is 0.1-10 mA / cm 2 And the electrolyte concentration range is 0.5-10mol / L, the reaction time range is 2-60min, and a layer of blue Cu(OH) is formed on the ...

specific Embodiment approach 2

[0026] Specific embodiment two: this embodiment prepares imitation gecko foot microarray according to the following steps:

[0027] 1. Cu(OH) 2 Microarray preparation

[0028] The electrochemical reaction cell for preparing CuO pine needle arrays by in-situ etching method is a one-chamber electrolytic cell. The copper strip (1 cm×1 cm) is the working electrode (WE), and the platinum electrode (area A≈1.0 cm 2) is the counter electrode (CE), the saturated calomel electrode is the reference electrode (RE), and sodium hydroxide (NAOH) is the electrolyte. Before the experiment, the copper strip needs to be washed with acid, water and alcohol. The reaction tank was ventilated with argon gas for about 20 minutes to remove the gas in the electrolyte. Control the current density to 0.5mA / cm 2 And the electrolyte concentration is 1mol / L, the reaction time is 15min, and a layer of blue Cu(OH) is formed on the surface of the copper strip. 2 film. Take out the copper tape with the ...

specific Embodiment approach 3

[0032] Specific embodiment three: this embodiment prepares imitation gecko foot microarray according to the following steps:

[0033] 1. Cu(OH) 2 Preparation of microarrays.

[0034] The electrochemical reaction cell for preparing CuO pine needle arrays by in-situ etching method is a one-chamber electrolytic cell. The copper strip (1 cm×1 cm) is the working electrode (WE), and the platinum electrode (area A≈1 cm 2 ) is the counter electrode (CE), the saturated calomel electrode is the reference electrode (RE), and sodium hydroxide (NAOH) is the electrolyte. Before the experiment, the copper strip needs to be washed with acid, water and alcohol. The reaction tank was ventilated with argon gas for about 20 minutes to remove the gas in the electrolyte. Control the current density to 1.3mA / cm 2 And the electrolyte concentration is 4mol / L, the reaction time is 15min, a layer of blue Cu(OH) is formed on the surface of the copper strip 2 film. Take out the copper tape with the...

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Abstract

The invention provides a preparation method of a bionic gecko composite microarray, relating to a preparation method of setae on bionic gecko feet. The preparation method of the bionic gecko structured composite microarray comprises the following steps: (1) preparing a Cu(OH)2 microarray by adopting anodic in-situ electrochemical etching; (2) impregnating the prepared Cu(OH)2 microarray in an alcoholic solution of polyvinylpyrrolidone with amphipathicity for a few minutes, taking out and then putting the Cu(OH)2 microarray in a hydrochloric acid solution of aniline, then adding an HCl solution of sodium benzenesulfonate and ammonium metavanadate, carrying out polymerization reaction at room temperature of N2 atmosphere and obtaining a Cu(OH)2/PANI (polyaniline) conductive composite microarray after polymerization reaction. The preparation method of the setae on bionic gecko feet is simple to operate, is controllable in experiment parameters and low in cost and can be used for preparing the conductive PANI coated Cu(OH)2 bionic gecko feet conductive microarray. The area, diameter and height of the bionic gecko feet nano array are respectively 0.1-5cm<2>, 50nm-10mu m and 0.1-20mu m.

Description

technical field [0001] The invention relates to a preparation method of imitation gecko foot bristles. Background technique [0002] The excellent physiological functions of many animals have attracted the attention of scientists from all walks of life for centuries. For example, mosquitoes can easily adhere to human skin to bite; dung beetles living in a sticky and moist soil environment have excellent anti-adhesion functions; The smooth glass comes and goes freely. The common feature of the above-mentioned animals is that they all have a seta structure, and the difference in the architecture of the seta groups leads to the diversification of their functions. Among them, the kung fu on the gecko's feet is particularly amazing. Whether it is in the air environment, in the water or in a vacuum environment, the adhesion on its feet will not fail. Wall-climbing robots have a wide range of uses in civil, military, and aerospace applications, so they have attracted more and mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J179/02C09J9/02C09J11/00C08G73/02C25D11/00
Inventor 刘宇艳张恩爽吕通刘羽熙谭惠丰
Owner HARBIN INST OF TECH
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