Method for preparing bionic adhesion arrays with different top end structures

An array and biomimetic technology, applied in the field of biomimetic adhesion array preparation, can solve the problems of single, complex and difficult operation of the top shape, and achieve the effect of broadening the scope of application and enriching research methods.
CN102012632AInactive Publication Date: 2011-04-13HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a novel method for preparing bionic adhesion micron-sized pillar arrays with different top end shapes. Top end structures are spatula-shaped, arc-shaped, planar and sunken respectively; pillars have micron-grade diameters; and the array has a high-aspect ratio structure. The method comprises the following steps of: forming a micron-sized pillar array on a silicon substrateby utilizing ultraviolet lithography and inductively-coupled plasma etching as main technical means; preparing a soft template with a micron-sized hole array structure by taking polydimethylsiloxane as a replication material; and performing film molding and curing on the solvent solution of high polymer material in the template by adopting different processes to obtain bionic adhesion micron-sized pillar array materials. The bionic adhesion materials obtained by the method have potential application value in the fields of biomedicine, precision industries, climbing robots and the like.
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Description

Technical field:

[0001] The invention discloses a new method for preparing bionic adhesion arrays with different tip structures, and relates to the fields of material chemistry and micromachining. Background technique:

[0002] In nature, geckos have the perfect ability to climb walls. Inspired by this, it has become a research hotspot to study the wall-climbing adhesion mechanism of gecko and imitate the wall-climbing behavior of gecko. In 2000, Autumn and Full reported on page 681 of volume 405 of "Nature" that the adhesion force of gecko feet comes from the intermolecular force - Van der Waals force. Microscopic studies have shown that there are millions of setae arrays with micro-nano structures distributed on the paws of geckos, and the top of each seta has a spatula-like structure, which ensures that each seta has a good and close contact with the contact surface. The accumulation of van der Waals force generated by the close contact between these bristles and the wa...

Claims

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