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Biomedical carbon/carbon composite material capable of being developed under X ray and preparation method thereof

A carbon composite material and biomedical technology, which is applied in the field of biomedical materials for human hard tissue replacement, can solve the problems of increased manufacturing cost and poor biocompatibility, and achieves low cost, good biocompatibility and simple preparation process. Effect

Inactive Publication Date: 2012-05-02
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But since W or BaSO 4 The biocompatibility of carbon / carbon composite materials is poor, and the hard tissue substitutes made of carbon / carbon composite materials will cause certain inflammatory reactions and foreign body reactions after being implanted in the human body, which brings pain to the patients.
In addition, the above treatment method is a post-treatment after the carbon / carbon composite material is produced, and it needs to be repeated many times to meet the use requirements, which increases the manufacturing cost

Method used

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  • Biomedical carbon/carbon composite material capable of being developed under X ray and preparation method thereof
  • Biomedical carbon/carbon composite material capable of being developed under X ray and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The carbon fiber needle-punched preform was cleaned with acetone to remove the surfactant on the surface of the carbon fiber, and after cleaning, it was placed in a drying oven at 110°C for drying.

[0019] With boron phenolic resin as solute and dehydrated alcohol as solvent, it is prepared as 50% boron phenolic resin-dehydrated ethanol solution in mass fraction, and then adding 2% TaCl in mass percentage to the boron phenolic resin-dehydrated ethanol solution 5 And fully dissolved to obtain containing TaCl 5 impregnating agent solution;

[0020] Place the cleaned preform in the reactor for the following impregnation, curing, and heat treatment processes;

[0021] After the reactor is evacuated, it will contain TaCl 5 The impregnating agent solution was sucked into the autoclave, vacuum impregnated for 30min, then passed argon gas into the autoclave to 3MPa, heated to 60°C and impregnated for 2h. After impregnation, cure according to the process of 150°C / 3h+180°C / 4h...

Embodiment 2

[0025] Embodiment 2 is the same as the cleaning process of the carbon fiber needle-punched preform in Embodiment 1. Subsequent process is as follows:

[0026] With boron phenolic resin as solute and dehydrated alcohol as solvent, it is prepared as a 50% boron phenolic resin-dehydrated ethanol solution by mass fraction, and subsequently adding 1% TaCl by mass percentage in the boron phenolic resin-dehydrated ethanol solution 5 And fully dissolved to obtain containing TaCl 5 impregnating agent solution;

[0027] Place the cleaned preform in the reactor for the following impregnation, curing, and heat treatment processes;

[0028] Vacuum is applied to the reactor, which will then contain TaCl 5 The impregnating agent solution was sucked into the autoclave, vacuum impregnated for 30min, then passed argon gas into the autoclave to 2MPa, heated to 60°C, and impregnated for 2h. After impregnation, cure according to the process of 150°C / 3h+180°C / 4h+200°C / 3h. The solidified materi...

Embodiment 3

[0031] Embodiment 3 is the same as the cleaning process of the carbon fiber needled preform in Embodiment 1; the follow-up process is as follows:

[0032]With boron phenolic resin as the solute and absolute ethanol as the solvent, prepare a boron phenolic resin-absolute ethanol solution with a mass fraction of 50%, and then add 0.5% TaCl in the solution 5 And fully dissolved to obtain containing TaCl 5 impregnating agent solution;

[0033] Place the cleaned preform in the reactor for the following impregnation, curing, and heat treatment processes;

[0034] Vacuum is applied to the reactor, which will then contain TaCl 5 The impregnating agent solution was sucked into the autoclave, vacuum impregnated for 30min, then passed argon into the autoclave to 1MPa, heated to 60°C, and impregnated for 2h. After impregnation, cure according to the process of 150°C / 3h+180°C / 4h+200°C / 3h. The cured material was heat-treated in an argon-protected tube furnace, and the temperature was ra...

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Abstract

The invention discloses a biomedical carbon / carbon composite material capable of being developed under X ray. The pores of the carbon / carbon composite material comprise Ta or Ta2O5 developing phases. The biomedical carbon / carbon composite material is prepared by the steps of: firstly preparing boron phenolic resin- absolute ethanol solution with mass fraction of 50%, then adding TaCl5 with mass percent of 0.5-2% to prepare an impregnant solution containing TaCl5, impregnating carbon fiber acupuncture pre-prepared body in the impregnant solution at the temperature of 40-60 DEG C for 60-120 minutes, solidifying according to processes of 150 DEG C for 3 hours, 180 DEG C for 4 hours and 200 DEG C for 3 hours, carrying out high-temperature carbonization in a tubular furnace under the protection of inert atmosphere, raising temperature to 800-1200 DEG C from room temperature at a heating speed of 1-2 DEG C / minutes, preserving heat for 30-60 minutes, cooling in the furnace after heat preservation, and repeating impregnation-solidifying-carburizing densification process 5-7 times. The carbon / carbon composite material disclosed by the invention has light weight, high strength and good biocompatibility, can be clearly developed under X ray, and can satisfy medical examination demands after being implanted to a human body.

Description

technical field [0001] The invention relates to a biomedical material, in particular to a biomedical material for human hard tissue replacement. Background technique [0002] Generally speaking, carbon / carbon composites (C / C composites) refer to a type of composite materials in which both the reinforcing phase and the matrix are composed of carbon elements. In the 1950s, carbon / carbon composite materials were first produced in the United States. After more than 50 years of development, they have been widely used in many important industrial fields such as aviation, aerospace, and nuclear energy. Compared with other materials, carbon / carbon composite materials have the following advantages: (1) Good high-temperature mechanical properties, carbon / carbon composite materials have high strength and modulus at high temperatures, and as the temperature increases (up to 2200 ℃), its strength gradually increases, and it has become the only high-temperature composite material that ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/50A61L27/08
Inventor 崔振铎余鹏朱胜利杨贤金
Owner TIANJIN UNIV
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