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Preparation method of biological coating with strong binding force on surface of carbon/carbon composite material

A carbon composite material and bio-coating technology, applied in coating, tissue regeneration, medical science, etc., can solve the problems of not having the function of conducting or inducing bone tissue regeneration, difficult materials to effectively combine with bone, and not having biological activity , to achieve the effect of improving cohesion, enhancing compactness, and increasing interface bonding force

Active Publication Date: 2020-06-12
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the surface of the carbon / carbon composite material is hydrophobic, and it forms a mechanical bond with the surface of the bone tissue. It has no biological activity, conduction or induction of bone tissue regeneration, and it is difficult to form an effective bond between the material and the bone in a short period of time.

Method used

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  • Preparation method of biological coating with strong binding force on surface of carbon/carbon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Wrap the carbon fibers on the surface of the carbon / carbon composite material along the same direction, and the distance between the carbon fibers is 0.5 mm to obtain sample A;

[0031] (2) Wrap the carbon fibers on the surface of the sample A again along the direction perpendicular to the first step, and the distance between the carbon fibers is 0.5mm to obtain the sample B;

[0032] (3) The hydroxyapatite nanoribbon is uniformly dispersed in absolute ethanol according to a concentration of 1 g / L to obtain a solution C;

[0033] (4) Titrate solution C on the surface of sample B, the titration is 1ml / cm 2 , get sample D;

[0034] (5) Evenly mix the phenolic resin powder and absolute ethanol according to 20% by mass percentage to obtain solution E;

[0035] (6) The hydroxyapatite nanoribbon is uniformly dispersed in the solution E according to 1g / L to obtain the solution F;

[0036] (7) Soak sample D in solution F for 36 hours to obtain sample G;

[0037] (8) Tit...

Embodiment 2

[0041] (1) Wrap the carbon fibers on the surface of the carbon / carbon composite material along the same direction, and the distance between the carbon fibers is 2.0 mm to obtain sample A;

[0042] (2) Wrap the carbon fibers on the surface of the sample A again along the direction perpendicular to the first step, the distance between the carbon fibers is 2.0mm, to obtain the sample B;

[0043](3) The hydroxyapatite nanobelt is uniformly dispersed in absolute ethanol according to the concentration of 10g / L to obtain solution C;

[0044] (4) titrate solution C on the surface of sample B, the titration is 5ml / cm 2 , get sample D;

[0045] (5) Evenly mix the phenolic resin powder and absolute ethanol at 50% by mass to obtain solution E;

[0046] (6) The hydroxyapatite nanobelt is uniformly dispersed in the solution E according to 5g / L to obtain the solution F;

[0047] (7) Soak sample D in solution F for 72 hours to obtain sample G;

[0048] (8) Titrate solution F on the surfac...

Embodiment 3

[0052] (1) Wrap the carbon fibers on the surface of the carbon / carbon composite material along the same direction, and the distance between the carbon fibers is 1.0 mm to obtain sample A;

[0053] (2) Wrap the carbon fibers on the surface of the sample A again along the direction perpendicular to the first step, the distance between the carbon fibers is 1.0mm, to obtain the sample B;

[0054] (3) The hydroxyapatite nanobelt is uniformly dispersed in absolute ethanol according to the concentration of 5g / L to obtain solution C;

[0055] (4) Titrate solution C on the surface of sample B, the titration is 3ml / cm 2 , get sample D;

[0056] (5) Evenly mix the phenolic resin powder and absolute ethanol according to 30% by mass percentage to obtain solution E;

[0057] (6) The hydroxyapatite nanobelt is uniformly dispersed in the solution E according to 3g / L to obtain the solution F;

[0058] (7) Soak sample D in solution F for 48 hours to obtain sample G;

[0059] (8) Titrate sol...

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Abstract

The invention relates to a preparation method of a strong-binding-force biological coating on the surface of a carbon / carbon composite material. The method comprises the following steps: firstly, directionally arranging carbon fibers in an orthogonal direction on the surface of the carbon / carbon composite material; firstly, preparing carbon fibers, then introducing hydroxyapatite nanobelts into pore structures of the carbon fibers by virtue of a titration method, then introducing the hydroxyapatite nanobelts again by virtue of resin, and in addition, attaching the resin to the surfaces of thehydroxyapatite nanobelts and filling gaps with the resin, so as to finally form the biological coating composed of the orthogonally arranged carbon fibers, hydroxyapatite nanobelts and resin. The maximum value of the interface bonding force between the prepared biological coating and the carbon / carbon composite material is 19.80 MPa, and the interface bonding force is improved by 37.8% compared with the maximum value of the interface bonding force reported in the background technology.

Description

technical field [0001] The invention belongs to a preparation method of a biological coating, and relates to a preparation method of a carbon / carbon composite material surface strong binding force biological coating. Background technique [0002] Carbon / carbon composites are composite materials in which both the matrix phase and the reinforcing phase are composed of carbon elements, which inherit the inherent biocompatibility of carbon materials. Due to the existence of fiber reinforced phase, it overcomes the brittleness of single carbon material and endows it with high toughness, high strength and other characteristics. In addition, its fatigue resistance, excellent friction performance, light weight, and certain pseudoplasticity, especially its elastic modulus is comparable to that of human bone, can effectively alleviate the stress shielding effect and reduce bone resorption behavior. In addition, the structure of the carbon fiber preform can be woven so that its mechan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/08A61L27/30A61L27/32A61L27/34A61L27/50A61L27/56
CPCA61L27/08A61L27/32A61L27/303A61L27/34A61L27/50A61L27/56A61L2430/02A61L2420/02A61L2420/04C08L61/06
Inventor 张磊磊赵斐管科杰李贺军
Owner NORTHWESTERN POLYTECHNICAL UNIV
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