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Titanium/tricalcium phosphate/titanium mesh composite material for bone implantation material, and preparation method thereof

A technology of bone implant material and tricalcium phosphate, which is applied in the field of titanium/tricalcium phosphate/titanium mesh composite material and its preparation, can solve the problems of reducing the mechanical properties of materials and the growth of titanium grains, and achieve excellent mechanical properties, Excellent compressive strength, the effect of improving the speed and ability of bone repair

Active Publication Date: 2017-07-28
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ti / CaP composite materials are generally prepared by powder metallurgy, but the grain growth of titanium is obvious during the sintering process, which reduces the mechanical properties of the material.

Method used

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  • Titanium/tricalcium phosphate/titanium mesh composite material for bone implantation material, and preparation method thereof
  • Titanium/tricalcium phosphate/titanium mesh composite material for bone implantation material, and preparation method thereof
  • Titanium/tricalcium phosphate/titanium mesh composite material for bone implantation material, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] A titanium / tricalcium phosphate / titanium mesh composite material applied to bone implant materials according to the present invention has a continuous network structure, wherein the mass ratio of titanium to tricalcium phosphate is 5:5, and the titanium mesh accounts for 5% of the composite material mass. 10wt%, tricalcium phosphate is α-TCP, titanium mesh is 40 mesh.

[0048] The preparation method of the present embodiment titanium / tricalcium phosphate / titanium mesh composite material comprises the following steps:

[0049] (1) Mixing of titanium and tricalcium phosphate: mix commercial pure titanium powder and α-TCP powder according to the mass ratio of 5:5, add stearic acid at the same time, carry out ball milling for 4 hours, the rotating speed of ball milling is 200r / min;

[0050] (2) Titanium / tricalcium phosphate / titanium mesh composite material sintering: the titanium / tricalcium phosphate mixed powder prepared by step 1) is packed into the titanium mesh skelet...

Embodiment 2

[0052] A titanium / tricalcium phosphate / titanium mesh composite material applied to bone implant materials according to the present invention has a continuous network structure, wherein the mass ratio of titanium to tricalcium phosphate is 6:4, and the titanium mesh accounts for 2% of the composite material mass. 15wt%, titanium mesh number is 40 mesh.

[0053] The preparation method of the present embodiment titanium / tricalcium phosphate / titanium mesh composite material comprises the following steps:

[0054] (1) Mixing of titanium and tricalcium phosphate: mix commercial pure titanium powder and α-TCP powder according to the mass ratio of 6:4, add stearic acid at the same time, carry out ball milling for 4 hours, the rotating speed of ball milling is 200r / min;

[0055] (2) Titanium / tricalcium phosphate / titanium mesh composite material sintering: the titanium / tricalcium phosphate mixed powder prepared by step 1) is packed into the titanium mesh skeleton that the mesh number ...

Embodiment 3

[0058] A titanium / tricalcium phosphate / titanium mesh composite material applied to bone implant materials according to the present invention has a continuous network structure, wherein the mass ratio of titanium to tricalcium phosphate is 7:3, and the titanium mesh accounts for 2% of the composite material mass. 20 wt%, tricalcium phosphate is α-TCP, titanium mesh is 60 mesh.

[0059] The preparation method of the present embodiment titanium / tricalcium phosphate / titanium mesh composite material comprises the following steps:

[0060] (1) Mixing of titanium and tricalcium phosphate: mix commercial pure titanium powder and α-TCP powder according to the mass ratio of 7:3, add stearic acid at the same time, carry out ball milling for 4 hours, the rotating speed of ball milling is 200r / min;

[0061] (2) Titanium / tricalcium phosphate / titanium mesh composite material sintering: the titanium / tricalcium phosphate mixed powder prepared by step 1) is packed into the titanium mesh skele...

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Abstract

The invention provides a titanium / tricalcium phosphate / titanium mesh composite material for a bone implantation material. The titanium / tricalcium phosphate / titanium mesh composite material has a continuous network structure, wherein a mass ratio of titanium powder to tricalcium phosphate in the composite material is 5:5-8:2, and the titanium mesh accounts for 10-20% of the mass of the composite material. The invention further provides a preparation method of the composite material. The preparation method comprises: adding a calcium salt solution into a phosphate solution in a dropwise manner, carrying out stirring, centrifuging or suction filtering separation to obtain a precipitate, drying and calcining the precipitate, grinding to obtain alpha-TCP powder, mixing the alpha-TCP powder and titanium powder to obtain titanium / tricalcium phosphate mixed powder, loading the titanium / tricalcium phosphate mixed powder into a titanium mesh skeleton, and performing spark plasma sintering to produce the titanium / tricalcium phosphate / titanium mesh composite material. According to the present invention, the prepared titanium / tricalcium phosphate / titanium mesh composite material has the continuous network structure of the metal and the ceramic, and has advantages of excellent mechanical property, elastic modulus close to human bone, excellent biological activity, and excellent degradability.

Description

technical field [0001] The invention belongs to the technical field of biomaterials, and in particular relates to a titanium / tricalcium phosphate / titanium mesh composite material applied to bone implant materials and a preparation method thereof. Background technique [0002] Due to their good mechanical properties, toughness, biocompatibility and corrosion resistance, titanium and titanium alloys have gradually become the research hotspots of metal-based bone implant materials. However, titanium and titanium alloys also have some shortcomings as biomaterials. One is that the mechanical properties do not match, and the elastic modulus is much higher than that of human bone tissue, which will lead to "stress shielding" and cause loosening of the prosthesis; Titanium and titanium alloys do not have biological activity and lack osteoinductive ability. They only have a mechanical contact with bone tissue and cannot form chemical bonds, which may also lead to loosening of the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/50A61L27/06A61L27/54A61L27/12C22C47/14C22C49/11C22C49/14C22C111/02
CPCA61L27/06A61L27/12A61L27/50A61L27/54A61L2300/112A61L2300/412A61L2430/02C22C47/14C22C49/11C22C49/14
Inventor 谭彦妮刘咏郭誉周睿
Owner CENT SOUTH UNIV
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