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A kind of preparation method of bionic shell material

A shell and bionic technology, applied in the direction of processing and manufacturing, manufacturing tools, additive manufacturing, etc., can solve the problems of cumbersome steps, poor uniformity, performance difference, etc., and achieve the effect of simple process and good uniformity.

Active Publication Date: 2020-09-15
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these prepared shell structures require cumbersome steps and are poor in uniformity, resulting in performance that is far from that of real shell structures.

Method used

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  • A kind of preparation method of bionic shell material
  • A kind of preparation method of bionic shell material
  • A kind of preparation method of bionic shell material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of a bionic shell material in this embodiment comprises the following steps:

[0031] (1) Solidworks is used to construct the "brick-wall" structure. The small rectangular holes that constitute the organic framework are 100 μm long, 50 μm high, and 10 μm thick, such as figure 1 shown;

[0032] (2) Configure photosensitive resin: oligomer selects urethane acrylate, the mass fraction is 49%, the diluent selects isobornyl acrylate, the mass fraction is 50%, and the photoinitiator selects 2,4,6-trimethylbenzyl Acyl-diphenylphosphine oxide, the mass fraction is 1%, magnetically stirred at room temperature for 12 hours to obtain the desired photosensitive resin;

[0033] (3) Inject the prepared photosensitive resin into the ultra-fine capillary glass tube with a syringe and insert the copper wire. The copper wire is connected to the positive pole of the power supply, and the bottom plate is connected to the negative pole of the power supply. The resin is...

Embodiment 2

[0037] A preparation method of a bionic shell material in this embodiment comprises the following steps:

[0038] (1) Solidworks is used to construct the "brick-wall" structure. The small rectangular holes that constitute the organic framework are 100 μm long, 50 μm high, and 10 μm thick;

[0039] (2) configure photosensitive resin: the oligomer selects urethane acrylate, the mass fraction is 48%, the diluent selects isobornyl acrylate, tripropylene glycol diacrylate, and the mass fraction is 25%, and the photoinitiator selects 2, 4,6-trimethylbenzoyl-diphenylphosphine oxide, the mass fraction is 2%, magnetically stirred at room temperature for 12 hours to obtain the desired photosensitive resin;

[0040] (3) Inject the prepared photosensitive resin into the ultra-fine capillary glass tube with a syringe and insert the copper wire. The copper wire is connected to the positive pole of the power supply, and the bottom plate is connected to the negative pole of the power supply. ...

Embodiment 3

[0044] A preparation method of a bionic shell material in this embodiment comprises the following steps:

[0045] (1) Solidworks is used to construct the "brick-wall" structure. The small rectangular holes that constitute the organic framework are 100 μm long, 50 μm high, and 10 μm thick;

[0046](2) configure photosensitive resin: the oligomer selects epoxy acrylate and aliphatic urethane acrylate, and the mass fraction is 22.5%, and the diluent selects ethoxylated trimethylolpropane triacrylate, and the mass fraction is 52%. The initiator is phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, the mass fraction is 3%, and magnetically stirred at room temperature for 12 hours to obtain the desired photosensitive resin;

[0047] (3) Inject the prepared photosensitive resin into the ultra-fine capillary glass tube with a syringe and insert the copper wire. The copper wire is connected to the positive pole of the power supply, and the bottom plate is connected to the negative pole ...

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Abstract

The invention discloses a preparation method of a bionic shell material, and belongs to the technical field of bionic structural mechanics materials. The preparation method comprises the following steps of (1) carrying out construction of brick-wall structure by using modeling software; (2) taking a photosensitive resin as a raw material, adding a diluent and a photoinitiator, and printing an organic framework of a shell structure by adopting micro-nano 3D printing equipment; (3) depositing calcium carbonate in the printed organic framework by adopting an in-situ precipitation method to obtainthe organic framework for depositing calcium carbonate; and (4) carrying out hot pressing on the organic framework deposited with the calcium carbonate by virtue of a hot pressing method to obtain the bionic shell material. The preparation method is simple in process, the prepared bionic shell material is good in uniformity, the strength and fracture toughness property of the prepared bionic shell material are close to that of the shell material, the bionic shell material has very practical value in the fields of mechanical engineering, aerospace, bullet-proof armor and the like.

Description

technical field [0001] The invention belongs to the technical field of bionic structural mechanics materials, and in particular relates to a preparation method of a bionic shell material. Background technique [0002] In recent years, biomimetic materials have aroused extensive research interest in the scientific community because of their excellent various properties. Among them, the shell, as the shell of the mollusk near the water, is a calcification formed by the secretion of a special glandular cell of the mollusc, which has the function of protecting the animal body. [0003] Due to the unique "brick-wall" structure, the shell has excellent strength, stiffness, hardness and strong fracture toughness, and is an ideal bionic model. The structure of shells is usually composed of overlapping layers of lamellae. The main component of the inorganic lamellar structure is CaCO 3 , provides the strength properties of the shell, while the organic protein of the amorphous stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/10B29C64/379C01F11/18C08L75/14C08L63/10C08K3/26B33Y70/10B33Y40/20
CPCB29C64/10B29C64/379B33Y10/00B33Y40/00B33Y70/00C01F11/18C08K3/26C08K2003/265C08L63/10C08L75/14
Inventor 刘军马秋臣
Owner CENT SOUTH UNIV
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