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Biomimetic bone piezoelectric three-dimensional ceramic support material and preparation method and application thereof

A ceramic stent, piezoelectric ceramic technology, applied in medical science, tissue regeneration, prosthesis and other directions, to achieve the effect of easy promotion, good connectivity, controllable pore size and porosity

Inactive Publication Date: 2016-12-21
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no research on the introduction of piezoelectric materials to prepare scaffold materials from the perspectives of the porous structure and piezoelectric function of natural bone.

Method used

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  • Biomimetic bone piezoelectric three-dimensional ceramic support material and preparation method and application thereof
  • Biomimetic bone piezoelectric three-dimensional ceramic support material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of a three-dimensional porous ceramic scaffold material imitating bone piezoelectricity, comprising the following steps:

[0034] (1) the mixture of the polyvinyl alcohol of 53 mass parts potassium sodium niobate ceramic powders, 35 mass parts sodium polypropionate solution (concentration of solution is 30wt%), 7 mass parts and glycerol (polyvinyl alcohol in the mixture The content is 15wt%), 5 parts by mass of sodium carboxymethylcellulose are mixed evenly to form a slurry, and finally a three-dimensional porous ceramic support with controllable size and shape is prepared by 3D printing technology;

[0035] (2) Dry the three-dimensional porous ceramic scaffold obtained in step (1), sinter at 1000°C for 2 hours, and polarize at high voltage (the polarization voltage is 2kV, and the polarization treatment time is 5min), to obtain a three-dimensional bone-like piezoelectric structure. Porous ceramic scaffold material.

[0036] The pore size of the th...

Embodiment 2

[0038] A preparation method of a three-dimensional porous ceramic scaffold material imitating bone piezoelectricity, comprising the following steps:

[0039] (1) the mixture of the polyvinyl alcohol and glycerol of 46 mass parts potassium sodium niobate ceramic powders, 40 mass parts sodium polypropionate solution (concentration of solution is 30wt%), 10 mass parts (polyvinyl alcohol is in the mixture The content is 25wt%), 4 parts by mass of sodium carboxymethylcellulose are mixed evenly to form a slurry, and finally a three-dimensional porous ceramic support with controllable size and shape is prepared by 3D printing technology;

[0040] (2) Dry the three-dimensional porous ceramic scaffold obtained in step (1), sinter at 1000°C for 2 hours, and polarize at high voltage (the polarization voltage is 5kV, and the polarization treatment time is 5min), to obtain a three-dimensional bone-like piezoelectric structure. Porous ceramic scaffold material. The three-dimensional bone-i...

Embodiment 3

[0043] A preparation method of a three-dimensional porous ceramic scaffold material imitating bone piezoelectricity, comprising the following steps:

[0044] (1) the mixture of 47 mass parts potassium sodium niobate ceramic powder, 40 mass parts sodium polypropionate solution (concentration of solution is 30wt%), 10 mass parts polyvinyl alcohol and glycerol (polyvinyl alcohol in the mixture The content is 20wt%), 3 parts by mass of sodium carboxymethyl cellulose are mixed evenly to form a slurry, and finally a three-dimensional porous ceramic support with controllable size and shape is prepared by 3D printing technology;

[0045] (2) Dry the three-dimensional porous ceramic scaffold obtained in step (1), sinter at 1000°C for 2 hours, and polarize at high voltage (the polarization voltage is 5kV, and the polarization treatment time is 10min), to obtain a three-dimensional bone-like piezoelectric structure. Porous ceramic scaffold material. The pore size of the three-dimensiona...

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Abstract

The invention belongs to the technical field of medial material manufacturing, and discloses a biomimetic bone piezoelectric three-dimensional ceramic support material and a preparation method and application thereof. The method comprises the steps that 1, piezoelectric ceramic powder, a dispersing agent, a binder and a thickener are mixed to be prepared into slurry, and a three-dimensional porous ceramic support is obtained through a 3D printing technology; 2, the three-dimensional porous ceramic support is subjected to drying, high-temperature sintering and high voltage polarization, and the biomimetic bone piezoelectric three-dimensional ceramic support material is obtained. The piezoelectric powder is potassium sodium niobate powder or barium titanate powder or other ceramic powder containing potassium sodium niobate; the dispersing agent is polyacrylate, and the binder is a mixture of polyvinyl alcohol and glycerin. According to the biomimetic bone piezoelectric three-dimensional ceramic support material and the preparation method and application thereof, the method is simple, and the cost is low; the material has a good communicating pore structure and piezoelectricity similar to a natural bone itself, and structure and function double bionic design is achieved; the biomimetic bone piezoelectric three-dimensional ceramic support material is a functional bone repair material with great potential.

Description

technical field [0001] The invention belongs to the technical field of medical material manufacturing, and in particular relates to a bone-imitating piezoelectric three-dimensional ceramic support material and a preparation method and application thereof. Background technique [0002] Bone repair scaffolds have always been a hot topic in current bone repair and replacement research, especially scaffold materials with good connectivity and individual design, and the emergence of rapid prototyping technology has opened the door for the solution of this problem. In recent years, researchers have carried out a lot of research using 3D printing technology. Kanguk Kim used 3D optical printing technology to prepare composite scaffolds of inorganic particles and polymers to prepare 3D scaffolds with smaller size and more controllable structure (Kim K, Zhu W, Qu X, et al. 3D Optical Printing of Piezoelectric Nanoparticle–Polymer CompositeMaterials [J].ACS nano,2014,8(10):9799-9806)....

Claims

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Application Information

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IPC IPC(8): A61L27/56A61L27/50A61L27/10
CPCA61L27/10A61L27/50A61L27/56A61L2430/02
Inventor 宁成云陈威赵娜如谭帼馨于鹏周蕾
Owner SOUTH CHINA UNIV OF TECH
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