Preparation method of bionic gecko tape

The technology of tape and gecko is applied in the field of preparation of imitation gecko foot bristles, which can solve the problems of complicated operation, high cost, difficulty in demoulding, etc., 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

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Problems solved by technology

The preparation of microarrays by solution chemistry is a simple, convenient, low-cost (no need to use large-scale equipment), and parameter-controllable method. The imitation gecko foot microarray prepared by this method directly grows on metal Ni sheet metal without removing the template. The problems of high cost, complicated operation and difficult demoulding of the existing methods are solved, and industrial production is expected to be realized

Method used

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  • Preparation method of bionic gecko tape
  • Preparation method of bionic gecko tape
  • Preparation method of bionic gecko tape

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specific Embodiment approach 1

[0029] Specific implementation mode one: as figure 1 As shown, this embodiment prepares ZnO / PANI composite imitation gecko foot microarray according to the following steps:

[0030] Step 1. Preparation of ZnO microarrays by solution chemistry

[0031] Polish the Ni metal sheet, ultrasonically clean it with absolute ethanol and distilled water, and dry it in an oven at 300°C, and prepare 0.02-0.5M Zn (NO 3 ) 2 and 0.5-3M NH 3 ·H 2 O mixed solution 50-1000mL. Suspend the dried metal piece in the mixed solution and react at 50-100°C for 10-30 hours. During the reaction, keep stirring the solution slightly. The metal sheet in the mixed solution is taken out, washed with water repeatedly, and dried to obtain a ZnO one-dimensional nano-array.

[0032] Step 2. Preparation of ZnO / PANI composite microarray

[0033]Suspend the ZnO array in the above steps in 100ml of absolute ethanol solution containing 1-20g of PVP, stir in a water bath at 30°C for 3-8h, then let it stand fo...

specific Embodiment approach 2

[0034] Specific embodiment two: this embodiment prepares imitation gecko foot microarray according to the following steps:

[0035] Step 1. Preparation of ZnO microarrays by solution chemistry

[0036] The Ni metal sheet was polished, ultrasonically cleaned with absolute ethanol and distilled water, and dried in an oven at 300 ° C, prepared with 45 mM Zn (NO 3 ) 2 and 250 mL of a mixed solution composed of 0.3 mM diammonium hydrogen phosphate (PD) and 0.2 mM hexamethyltetramine (HMT) (the components of the mixed solution in Embodiment 1 do not correspond to each other). Suspend the dried metal pieces in the solution and react at 60°C for 6 hours. During the reaction, the solution is constantly stirred slightly. The metal sheet in the solution is taken out, rinsed with water repeatedly, and dried to obtain a ZnO one-dimensional nano-array.

[0037] Step 2. Preparation of ZnO / PANI composite microarray

[0038] Suspend the ZnO array in the above steps in 100ml of absolute...

specific Embodiment approach 3

[0040] Specific embodiment three: this embodiment prepares imitation gecko foot microarray according to the following steps:

[0041] Step 1. Preparation of ZnO microarrays by solution chemistry

[0042] The Ni metal sheet was polished, ultrasonically cleaned with absolute ethanol and distilled water, and dried in an oven at 300°C, and prepared with 0.1M Zn (NO 3 ) 2 and 1.2M NH 3 ·H 2 O mixed solution 300mL. Suspend the dried metal pieces in the solution and react at 70°C for 24 hours. During the reaction, the solution is constantly stirred slightly. The metal sheet in the solution is taken out, rinsed with water repeatedly, and dried to obtain a ZnO one-dimensional nano-array.

[0043] Step 2. Preparation of ZnO / PANI composite microarray

[0044] Dissolve 2.5g of PVP in 100ml of absolute ethanol solution, suspend the ZnO array in step 1 in the above solution, stir in a water bath at 30°C for 5 hours, then let it stand for 5 hours, rinse with ethanol twice, and then...

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Abstract

The invention provides a preparation method of a bionic gecko tape, and relates to a preparation method of a bionic gecko seta. The preparation method of a composite micro-array of a bionic gecko structure comprises the following steps: (1) preparing ZnO and ZnO/C micro-arrays by a liquor chemical method; and (2) immersing the prepared ZnO and ZnO/C micro-arrays in alcoholic liquor containing amphipathic polyvinylpyrrolidone for several minutes, taking out and placing in hydrochloric acid liquor of aniline, then, adding HCl liquor of sodium benzenesulfonate and ammonium metavanadate, and carrying out a polymerization reaction at room temperature under an N2 atmosphere, thus obtaining the ZnO/PANI (Polyaniline) and ZnO/C/PANI composite micro-arrays after polymerization reaction. The preparation method of the bionic gecko seta provided by the invention is simple to operate, controllable in experiment parameters and low in cost, and can be used for manufacturing a conductive polyaniline coated ZnO nanotube bionic gecko seta micro-array. The area of the bionic gecko seta nano array is 0.1-5<cm2>, the diameter is 10-500nm and the height is 0.1-10 microns.

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): C09J7/02C09J179/02C09J9/02C09J11/00C08G73/02
Inventor 刘宇艳张恩爽吕通刘羽熙谭惠丰
Owner HARBIN INST OF TECH
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