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Preparation method of bionic controllable adhesive hydrophobic gold surface

An adhesive, water-gold technology, applied in the field of biomimetic micro- and nano-textured surface preparation, can solve the problems of complex preparation process, restriction and high cost, and achieve a simple preparation process, low cost and controllable adhesion performance. Effect

Active Publication Date: 2012-03-21
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of these methods is complicated, the cost is relatively high, and they are often restricted by the current level of equipment and materials.

Method used

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  • Preparation method of bionic controllable adhesive hydrophobic gold surface
  • Preparation method of bionic controllable adhesive hydrophobic gold surface
  • Preparation method of bionic controllable adhesive hydrophobic gold surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, a method for preparing a biomimetic controllable adhesion hydrophobic gold surface of the present invention, the method includes using the lotus leaf of natural biological materials as a template, and combining the soft stamp technology and the surface chemical modification method to prepare a A hydrophobic gold surface with controllable adhesion and consistent with the micro-texture of the bioprototype surface, the soft stamp technique method comprises the following steps:

[0030] Step 1: Pretreatment step: first, the surface of the lotus leaf is cleaned by ultrasonic treatment with deionized water, blown dry with nitrogen, and then fixed on the surface of the glassware with double-sided adhesive tape for later use;

[0031] Step 2: Preparation of a gold surface with bionic inverse topography: Using soft stamp technology, a mixture of polydimethylsiloxane prepolymer and crosslinking agent with a mass ratio of 10:1 was used as the surface replication mater...

Embodiment 2

[0037] Embodiment two, such as figure 1 , image 3 , Figure 5 , Figure 8Shown, the preparation method of a kind of biomimetic controllable adhesion hydrophobic gold surface of the present invention, this method comprises using the rice leaf of natural biological material as template, combines by soft seal technique method and surface chemical modification method, prepares Controllable adhesion, and a hydrophobic gold surface consistent with the bioprototype surface micro-texture, the soft stamp technique method comprises the following steps:

[0038] Step 1: Pretreatment step: first, the surface of the rice leaf is cleaned by ultrasonic treatment with deionized water, and dried with nitrogen, and then fixed on the surface of the glassware with double-sided adhesive tape for later use;

[0039] Step 2: Preparation of a gold surface with biomimetic reverse topography: Using soft stamp technology, a mixture of polydimethylsiloxane prepolymer and cross-linking agent with a ma...

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Abstract

The invention relates to a preparation method of a bionic controllable-adhesiveness hydrophobic gold surface. The method comprises the following steps: using a biological material in the natural world as a template, and preparing the controllable-adhesiveness hydrophobic gold surface with the same surface micro texture of the biological prototype by using the soft seal technology and surface chemical modification method. The surface micro texture is a typical micro / nano dualistic structure. The micro / nano dualistic structure gold surface with front and back patterns of lotus leaves and rice leaves is obtained. The gold surfaces with different bionic micro / nano textures have different adhesiveness for water drops, and can be used for design of engineering, biorobots and the like. The gold surface with front pattern micro texture has rolling property and hydrophobicity, and the gold surface with back pattern has adhesiveness and hydrophobicity; and the gold surface can be used as a manipulator to realize nondestructive transportation of micro drops, liquid-carried materials, biological micro solution pipettes and the like.

Description

technical field [0001] The invention relates to the technical field of preparation of a biomimetic micro- and nano-textured surface with controllable adhesion and hydrophobicity to water droplets. In particular, the combination of soft stamp technology and surface chemical modification method is used to prepare a gold surface that has a water droplet. The method of bionic micro-nano texture with controllable adhesion is specifically a method for preparing a hydrophobic gold surface with bionic controllable adhesion. Background technique [0002] In order to adapt to the surrounding environment and survive better, biological species often exhibit surprising properties, such as: superhydrophobicity, UV protection, colorful colors, self-cleaning, high adhesion, etc. Like a lotus leaf, the contact angle of water on its surface is greater than 150°, and the sliding angle is less than 10°. When the leaf is slightly tilted, the water drops will slide down quickly, and at the same t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/22
Inventor 赵文杰曾志翔王立平薛群基陈建敏
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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