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Light high-strength high-toughness multi-cell metal micro-nano structure and preparation method thereof

A micro-nano structure and metal technology, applied in micro-structure technology, micro-structure devices, manufacturing micro-structure devices, etc., can solve the problems of poor strength, application limitations, etc., to reduce production costs, reduce structural quality, and simplify the process. Effect

Inactive Publication Date: 2020-05-12
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of femtosecond laser direct writing, the multicellular micro-nano structure is mainly prepared by laser-induced polymer colloidal reaction, and its component is an organic polymer material. Although it has good elasticity, its strength is poor, which limits its application.

Method used

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  • Light high-strength high-toughness multi-cell metal micro-nano structure and preparation method thereof
  • Light high-strength high-toughness multi-cell metal micro-nano structure and preparation method thereof

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preparation example Construction

[0023] Such as figure 1 As shown, the preparation method of the light-weight, high-strength and tough multicellular metal micro-nano structure of the present invention uses a composite manufacturing technology combining two-photon polymerization and deposition technology, according to the three-dimensional model of the designed three-dimensional multicellular micro-nano structure, using The second laser scans the liquid polymer layer by layer to make it polymerize to form a three-dimensional polymer micro-nano structure, and then deposit multi-layer metal on the surface of the polymer to form a composite metal layer with gradient changes in mechanical properties, and prepare a high-strength and tough The multicellular metal micro-nano structure comprises the following steps:

[0024] Establishment of 3D model of micro / nano structure: establish a 3D model of 3D multicellular micro / nano structure, and use model layering software to discretely layer it;

[0025] Preparation of p...

Embodiment 1

[0042] Establishment of the 3D model of the micro-nano structure: design the 3D model of the micro-nano structure, and use Solidworks software to discretely layer it.

[0043] Preparation of photosensitive resin: prepare liquid polymer, i.e. photosensitive resin, said photosensitive resin includes methyl methacrylate, polydipentaerythritol hexaacrylate and photoinitiator, methyl methacrylate, polydipentaerythritol hexaacrylate and photoinitiator Mix according to the mass ratio of 49:49:2;

[0044]Selection of laser processing system: select laser processing system, including femtosecond laser, optical transmission control device, confocal real-time monitoring device, three-dimensional mobile platform and control device;

[0045] Setting of two-photon polymerization process parameters: set two-photon polymerization process parameters, pulse width 80fs, average pulse energy 0.10nJ, repetition frequency 80MHz, scan rate 5mm / s, focus diameter 0.35μm, scan step 0.4μm;

[0046] Pre...

Embodiment 2

[0049] Establishment of the 3D model of the micro-nano structure: Design the 3D model of the micro-nano structure, and use Solidworks software to discretely layer it.

[0050] Preparation of photosensitive resin: prepare liquid polymer, that is, photosensitive resin, which includes butyl methacrylate, propoxylated trimethylolpropane triacrylate and photoinitiator; butyl methacrylate, propoxy Trimethylolpropane triacrylate and photoinitiator are mixed according to the mass ratio of 36:56:8;

[0051] Selection of laser processing system: select laser processing system, including femtosecond laser, optical transmission control device, confocal real-time monitoring device, three-dimensional mobile platform and control device;

[0052] Two-photon polymerization process parameter setting: set two-photon polymerization process parameters, pulse width 80fs, average pulse energy 0.15nJ, repetition frequency 80MHz, scan rate 5mm / s, focus diameter 0.35μm, scan step 0.5μm;

[0053] Prepa...

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Abstract

The invention provides a light high-strength high-toughness multi-cell metal micro-nano structure and a preparation method thereof. The preparation method comprises the following steps: establishing athree-dimensional model of a three-dimensional multi-cell micro-nano structure; preparing two-photon polymerized photosensitive resin; selecting a laser processing system; setting two-photon polymerization process parameters; enabling laser to enter the photosensitive resin by utilizing the laser processing system, and implementing two-photon polymerization to obtain a three-dimensional multi-cell polymer micro-nano structure; adopting a physical deposition method or a chemical deposition method or a physical and chemical combined deposition method for depositing multiple layers of metal on the surface of a polymer forming the three-dimensional multi-cell polymer micro-nano structure to prepare the high-strength and high-toughness multi-cell metal micro-nano structure. The prepared multi-cell metal micro-nano structure integrates the geometric structure enhancement effect and the synergistic enhancement effect of the intrinsic properties of the multi-layer multi-performance material,and is good in toughness, light in weight, simple in process and easy to operate. Therefore, the light-weight and high-strength multi-cell metal micro-nano structure can be prepared by the method.

Description

technical field [0001] The invention relates to the technical field of micro-nano manufacturing, in particular to a lightweight, high-strength and tough multicellular metal micro-nano structure and a preparation method thereof. Background technique [0002] For a long time, the improvement of material performance mainly depends on the change of its composition and the optimization of microstructure. In recent years, the use of advanced technologies to prepare three-dimensional micro-nanostructured materials with high strength and ultra-low density has attracted extensive attention. Three-dimensional micro-nanostructures are usually composed of micro / nano-sized interconnected materials. By combining the geometric structure with the inherent properties of its material components, the material has unique characteristics. It is widely used in electronic devices, energy storage, biomedicine and other fields. It has a wide range of engineering application potential. [0003] Two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00G03F7/20B82Y40/00
CPCB81C1/00214B81C1/00492B82Y40/00G03F7/2053B81C2201/0159
Inventor 崔承云陈璐束叶玄赵恺陈凯姜高强崔熙贵
Owner JIANGSU UNIV
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