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Hydroxyapatite nanobelt and hydroxyapatite coating on surface of C/C composite material and one-step co-growth preparation method

A technology of hydroxyapatite and long hydroxyapatite, which is applied in metal material coating process, electrolytic inorganic material coating, coating and other directions, can solve problems such as defect accumulation, avoid accumulation of defects, and solve inconsistent physical and chemical properties. compatible effects

Active Publication Date: 2021-07-09
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

Second, the silicon carbide nanowires and hydroxyapatite in the literature are prepared step by step, and the multi-step preparation leads to the accumulation of defects in each step
Due to the combination of factors, the interfacial bonding strength between the silicon carbide nanowire modified hydroxyapatite coating and the C / C composite material prepared in the above literature is only 8.05MPa

Method used

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  • Hydroxyapatite nanobelt and hydroxyapatite coating on surface of C/C composite material and one-step co-growth preparation method

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Embodiment Construction

[0019] Further, the drawings are further described with reference to the present invention:

[0020] Embodiment 1

[0021] (1) Grasping the C / C composite material to polish the sandpaper, sequentially washed with acetone, absolute ethanol and water, and placed in a ion-plating apparatus as a target in graphite, in the pressure of 0.8 × 10 -2 PA, deposit 2 hours under conditions of 0.6a, resulting in sample a;

[0022] (2) The A is fully immersed in the solution B, and the graphite is used as the anode, and the pulse deposition mode is applied, and the pulse width is 200 milliseconds, the pulse spacing is 400 milliseconds, the temperature is 40 ° C. The lower reaction was 5 minutes to prepare a hydroxyapatite nano. Then, the sample in the solution B is not moved, and the pulse deposition mode is adjusted to a constant voltage deposition mode, and the voltage is adjusted to 1V, and the temperature is adjusted to 80 ° C, and the reaction is further prepared for 1 hour, that is, the...

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Abstract

The invention relates to a hydroxyapatite nanobelt and a hydroxyapatite coating on the surface of a C / C (carbon / carbon) composite material and a one-step co-growth preparation method. The method comprises the steps that firstly, ion plating surface modification is carried out on the C / C composite material, and then in the same deposition system, under the condition that a C / C composite material sample is not moved, and preparation of the hydroxyapatite nanobelt and the hydroxyapatite coating is completed in one step. Therefore, the method has the following effects that firstly, the hydroxyapatite nanobelt is introduced into the hydroxyapatite coating, and the hydroxyapatite nanobelt and the hydroxyapatite coating have the consistent chemical components, so that the problem that the physicochemical properties of the nanobelt and the coating are incompatible is solved; and secondly, the hydroxyapatite nanobelt and the hydroxyapatite coating are co-grown in one step in the same deposition system, so that the problem of defect accumulation caused by multi-step preparation of the nanobelt and the coating is avoided.

Description

Technical field [0001] The present invention belongs to a biological coating and a method of preparation, and a hydroxyapatite nanoptride with a C / C composite surface and a hydroxyapatite coating and a one-step total growth process. Background technique [0002] The C / C composite material has excellent mechanical properties and friction resistance, which is a very potential body joint replacement material. However, the biological inertness of the C / C composite surface limits its extensive clinical application. Applying a biologically active coating on the surface of the C / C composite is a effective means of solving this problem, hydroxyapatite has chemical components close to the human bone, implanted in the human body non-toxic, no carcinogenic effect, and has good biological activity. , Bone conductivity and biocompatibility are suitable materials for biocarrators. The study found that the hydroxyapatite coating can impart surface biological activity to the C / C compos...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C28/04C25D5/18C25D9/04A61L27/30A61L27/32C23C14/06
CPCC23C14/32C23C14/0605C25D9/04C25D5/18C23C28/04A61L27/303A61L27/32
Inventor 张磊磊张悦李贺军李克智
Owner NORTHWESTERN POLYTECHNICAL UNIV
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