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Calcium-phosphate-based 3D printing material for biomedicine and preparation method thereof

A 3D printing and biomedical technology, applied in the field of 3D printing materials, can solve the problems that it is difficult to replace large-scale and large-volume traditional processing and manufacturing, hinder the development of 3D printing industry, and poor printing accuracy, and achieve high mechanical strength and high printing accuracy. High, good biomedical performance

Inactive Publication Date: 2017-05-17
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] (2) The printing accuracy of the physical finished product is poor
The printing accuracy of the physical finished product (that is, resolution and molding accuracy) is greatly restricted by the properties of the printing material and the molding process. Because 3D printing is directly bonded and formed by powder materials and bonding solutions, the printing accuracy of the physical finished product is poor.
[0017] These two key technical problems seriously and fundamentally hinder the development of the 3D printing industry. As a result, 3D printing technology is currently mainly suitable for the processing and manufacturing of finished products such as parts with small batches, small sizes, high precision, and complex shapes. It is currently difficult to replace Large-scale, high-volume traditional processing and manufacturing
Before the high-performance printing materials are really mature, 3D printing technology is still "tasteless" and cannot exert large-scale industrial influence on the manufacturing industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare calcium phosphate-based 3D printing materials according to the following process:

[0035] First, 1 kg of amorphous calcium phosphate was impregnated in a solution containing 10 g of Li + , 0.1g Ce 3+ , 100g of polyvinyl alcohol in pure water for 5 hours, and then dried at 70°C for 1 hour to obtain calcium phosphate-based modified powder material 1#.

Embodiment 2

[0037] Prepare calcium phosphate-based 3D printing materials according to the following process:

[0038] First, 1 kg of amorphous calcium phosphate was impregnated in a solution containing 10 g of Li + , 10g Zn 2+ , 4g Ce 3+ 、4g Y 3+ , 2g La 3+ , 100g polyvinyl alcohol, 100g sodium carboxymethyl cellulose in pure water for 3 hours, and then dry at 60°C for 1 hour to obtain calcium phosphate-based modified powder material 2#.

Embodiment 3

[0040] Prepare calcium phosphate-based 3D printing materials according to the following process:

[0041] First, 1 kg of amorphous calcium phosphate was impregnated in a solution containing 30 g of Li + , 30g Zn 2+ , 40g Al 3+ , 0.1gCe 3+ , 0.1g Y 3+ , 100g polyvinyl alcohol, 100g sodium carboxymethyl cellulose, 100g hydroxyethyl cellulose, 100g polyvinylpyrrolidone, 100g starch in pure water for 4 hours, and then dry at 80°C for 2 hours to obtain calcium phosphate-based modified Powder material 3#.

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Abstract

The invention belongs to the field of 3D printing materials and discloses a calcium-phosphate-based 3D printing material for biomedicine and a preparation method thereof. The preparation method specifically comprises the steps of dipping amorphous calcium phosphate into pure water containing metal ion, rare earth ion and water-soluble polymer; drying and grinding to obtain the calcium-phosphate-based 3D printing material. A bone tissue printed with the 3D printing material of the invention has the advantages of having high mechanical strength, good biomedical performance and high printing accuracy completely exceeding that of foreign similar imported products and having very wide application prospect.

Description

technical field [0001] The invention belongs to the field of 3D printing materials, and in particular relates to a biomedical calcium phosphate-based 3D printing material and a preparation method thereof. Background technique [0002] Manufacturing is the main material basis for the development of human society, and it directly reflects the level of science, technology and economic strength of a country or region. With the rapid development of science and technology, 3D printing technology (Three dimension printing, 3DP) came into being and developed rapidly. As a comprehensive, cross-cutting, cutting-edge, and advanced manufacturing technology, 3D printing technology is a major breakthrough and a qualitative leap in manufacturing technology, and its impact on the manufacturing industry is comparable to that of numerical control technology. [0003] 3D printing technology refers to a manufacturing technology based on inkjet printing and does not require molds. Its forming p...

Claims

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Application Information

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IPC IPC(8): A61L27/12A61L27/16A61L27/20A61L27/50B33Y70/00B33Y80/00
Inventor 聂建华陆萱冷小冰
Owner ZHONGSHAN POLYTECHNIC
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