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Preparation method of carbon fiber composite profiling artificial bone

A composite material and carbon fiber technology, applied in coatings, medical science, prostheses, etc., can solve problems such as bone resorption, thrombus formation, and easy corrosion

Active Publication Date: 2021-01-08
HUNAN TANKANG BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly metals, ceramics, and polymer materials as artificial bone implant materials, which mainly have the following problems: metals are prone to wear, fatigue, corrosion, bone resorption, and artifacts in medical images; polymer materials There are deficiencies such as aging, poor creep resistance, toxic reactions, and thrombosis, while ceramic materials have disadvantages such as no plasticity, brittleness, and easy breakage.
However, its reinforcement is short carbon fiber, its mechanical properties are not good, and there is a risk of brittle fracture

Method used

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  • Preparation method of carbon fiber composite profiling artificial bone
  • Preparation method of carbon fiber composite profiling artificial bone
  • Preparation method of carbon fiber composite profiling artificial bone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] 1) Twisting 3 bundles of 6k carbon fibers (the linear density is 396tex, tex represents the gram weight of one kilometer) into a carbon fiber rope, 20 bundles of polyethylene fiber bundles (the linear density is 35tex) are twisted into a carbon fiber rope, and then use 15 Carbon fiber rope and 3 polyethylene fiber ropes are woven into a mixed carbon fiber strip fabric, and 2mm fixing holes are reserved in the carbon fiber strip fabric; the polyethylene fiber mass accounts for 10%;

[0062] 2) Then, the carbon fiber strip fabric is assisted by a mold to form a carbon fiber prefabricated body; wherein, the curing and setting conditions are: curing temperature 250°C, time 6h, heating rate 10°C / min;

[0063] 3) Remove the mold, and thermally decompose the contoured artificial bone preform to obtain a porous contoured artificial bone preform; the conditions for the negative pressure thermal decomposition treatment are: under the condition of a pressure of 3kPa, at a temperatu...

Embodiment 2

[0078] 1) First 12k carbon fiber bundles are impregnated with epoxy resin by the solution method, then three bundles of 12k carbon fiber bundles are twisted into ropes, and then 13 ropes impregnated with epoxy resin are woven into carbon fiber strip fabrics, and in the carbon fiber strip fabrics Reserve a 0.5mm fixing hole; the epoxy resin mass accounts for 8%;

[0079] 2) Then, the carbon fiber strip fabric is assisted by a mold to form a carbon fiber prefabricated body; wherein, the curing and setting conditions are: curing temperature 220°C, time 6h, heating rate 8°C / min;

[0080] 3) Remove the mold, and thermally decompose the profiling artificial bone preform to obtain a porous profiling artificial bone preform; the conditions for the negative pressure thermal decomposition treatment are: under the condition of a pressure of 2kPa, at a rate of 5°C / min The heating rate was raised to 800°C, and the temperature was kept for 2 hours.

[0081] 4) impregnating the porous profi...

Embodiment 3

[0092] 1) First, 3k carbon fiber bundles (linear density 198tex) are impregnated with phenolic resin by solution method, then 3 bundles of dipped 3k carbon fiber bundles are twisted into fiber ropes, 24 bundles of polypropylene fiber bundles (linear density 22tex) and 12 A carbon fiber rope is woven into a mixed carbon fiber strip fabric, wherein the quality of polypropylene fiber accounts for 7% of the total mass of polypropylene fiber and carbon fiber, and epoxy resin accounts for 5% of the quality of carbon fiber rope.

[0093] 2) Then, the carbon fiber braid is assisted by a mold to form a carbon fiber prefabricated body; wherein, the curing and setting conditions are: curing temperature 350°C, time 3h, heating rate 5°C / min;

[0094] 3) Remove the mold, and thermally decompose the contoured artificial bone preform to obtain a porous contoured artificial bone preform; the conditions for the negative pressure thermal decomposition treatment are: under the condition of a press...

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Abstract

The invention discloses a preparation method of carbon fiber composite profiling artificial bone, which comprises the following steps: impregnating carbon fiber bundles or carbon fiber ropes in resin,and weaving them into a strip-shaped fabric; or, mixing the carbon fiber bundles or the carbon fiber ropes with macromolecular fibers and weaving them into a mixed strip-shaped fabric; or, impregnating the carbon fiber bundles or the carbon fiber ropes in resin, then mixing them with macromolecular fibers and weaving them into a strip-shaped fabric; curing and molding the strip-shaped fabric or the mixed strip-shaped fabric by the aid of a mold, carrying out negative pressure thermal decomposition treatment to remove the resin or macromolecules, densifying matrix carbon and / or silicon carbidethrough chemical vapor deposition and / or impregnation-cracking, and finally preparing a PyC coating and / or a DLC coating to obtain a carbon fiber composite profiling artificial bone with good biocompatibility, excellent mechanical properties and continuous through holes inside, which is conducive to penetrating endogenesis of autologous tissue. The preparation method has simple operation and lowcost, which is conductive to large-scale production.

Description

technical field [0001] The invention relates to an artificial bone, in particular to a carbon fiber composite material profiling artificial bone, which belongs to the technical field of biomaterials. Background technique [0002] Clinically, artificial bone implantation is an effective means of clinical treatment for anatomical reconstruction of bone defects caused by trauma, tumor, infection and abnormal development. At present, there are mainly metals, ceramics, and polymer materials as artificial bone implant materials, which mainly have the following problems: metals are prone to wear, fatigue, corrosion, bone resorption, and artifacts in medical images; polymer materials There are deficiencies such as aging, poor creep resistance, toxic reactions, and thrombosis, while ceramic materials have disadvantages such as no plasticity, brittleness, and easy breakage. [0003] In recent years, composite materials with excellent mechanical properties have been developed rapidly,...

Claims

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Application Information

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IPC IPC(8): A61L27/08A61L27/56A61L27/50A61L27/30A61L27/16A61L27/18
CPCA61L27/08A61L27/56A61L27/50A61L27/303A61L27/16A61L27/18A61L2430/02C08L23/06C08L23/12C08L63/00
Inventor 谭周建张翔王斌刘波蔡志霞
Owner HUNAN TANKANG BIOTECH CO LTD