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Biological adaptability coating and preparation method thereof

An adaptable and biological technology, applied in coatings, metal material coating technology, medical science, etc., can solve problems such as coating shedding, instability, voids, etc., to prevent shedding, improve coating life, and firm metallurgical bonding Effect

Inactive Publication Date: 2021-08-06
泉州市木屿新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It generally refers to that when a biomedical material is implanted into a living body, it will not produce toxic reactions and severe inflammation, and can make the tissue grow normally. The surface treatment in the prior art is to coat the titanium alloy substrate with hydroxyapatite powder; but The hydroxyapatite coating prepared by the current technology is easy to cause cracks, voids, etc., and it is easy to cause problems such as coating peeling and instability. How to further improve the performance of the hydroxyapatite coating is still a major technical problem, so it is urgently needed. Development of a biocompatible coating and method for its preparation

Method used

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Experimental program
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Effect test

Embodiment Construction

[0023] A bio-adaptive coating, comprising a bio-adaptive composite coating positioned on the surface of a substrate; the bio-adaptive composite coating consists of a base layer, a transition layer, and a surface layer from the inside to the outside; the base layer is 316L stainless steel alloy powder and The first bioceramic mixed powder; the transition layer is 316L stainless steel alloy powder and the second bioceramic mixed powder; the surface layer is 316L stainless steel alloy powder and the third bioceramic mixed powder.

[0024] Wherein, the first bioceramic mixed powder includes the following components in weight percentage: 30.4% Al 2 o 3 powder + 16.4% hydroxyapatite powder;

[0025] The second bioceramic mixed powder includes the following components in weight percentage: 29.3% TiO 2 powder + 21.0% hydroxyapatite powder;

[0026] The third bioceramic mixed powder includes the following components in weight percentage: 13.9% Al 2 o 3 Powder+14.3%TiO 2 Powder + ...

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Abstract

The invention discloses a biological adaptability coating and a preparation method thereof, and belongs to the field of biological adaptability coating processing. The biological adaptability coating comprises a biological adaptability composite coating located on the surface of a substrate, and the biological adaptability composite coating comprises a base layer, a transition layer and a surface layer from inside to outside in sequence. The biological adaptability coating is characterized in that metal powder, ceramic powder and hydroxyapatite powder are combined through a vacuum sintering method, a laser re-melting method, a laser fusion covering method and an electrostatic spraying method; the treated coating is relatively flat and uniform, and the heat resistance and the stability of the coating are improved; metallurgical bonding among the layers is firm, the service life of the coating is prolonged, and falling is prevented; meanwhile, the hydroxyapatite powder is added, so that the biological adaptability of the ceramic composite powder is improved; and the biological adaptability coating has the advantages of high hardness, good wear resistance and biological adaptability.

Description

technical field [0001] The invention belongs to the field of bio-adaptive coating processing, in particular to a bio-adaptive coating and a preparation method thereof. Background technique [0002] Bioadaptive coatings refer to coatings made by coating bioactive materials on the surface of substrates. It mainly includes hydroxyapatite coating, calcium phosphate coating, biological glass coating, collagen film, etc. It generally refers to that when a biomedical material is implanted into a living body, it will not produce toxic reactions and severe inflammation, and can make the tissue grow normally. The surface treatment in the prior art is to coat the titanium alloy substrate with hydroxyapatite powder; but The hydroxyapatite coating prepared by the current technology is easy to cause cracks, voids, etc., and it is easy to cause problems such as coating peeling and instability. How to further improve the performance of the hydroxyapatite coating is still a major technical ...

Claims

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Application Information

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IPC IPC(8): A61L31/08A61L31/14C23C24/10
CPCA61L31/086A61L31/088A61L31/14A61L2420/02A61L2420/06A61L2420/08C23C24/103
Inventor 杨得全黄华
Owner 泉州市木屿新能源科技有限公司