CN106039397B - The preparation method of vitreous carbon, artificial trachea - Google Patents

The preparation method of vitreous carbon, artificial trachea Download PDF

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CN106039397B
CN106039397B CN201610310581.8A CN201610310581A CN106039397B CN 106039397 B CN106039397 B CN 106039397B CN 201610310581 A CN201610310581 A CN 201610310581A CN 106039397 B CN106039397 B CN 106039397B
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vitreous carbon
polyacrylonitrile
titanium dioxide
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CN106039397A (en
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不公告发明人
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Xionghua Heyuan Optical Technology Co ltd
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Heyuan Longxin Optical Technology Co Ltd
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    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2002/046—Tracheae
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract

The invention discloses the preparation method of vitreous carbon, artificial trachea, the vitreous carbon by artificial trachea includes the raw material based on following parts by weight: 40 ~ 100 parts of polyacrylonitrile, 30 ~ 40 parts of polysiloxanes, 80 ~ 100 parts of cellulose acetate, 20 ~ 30 parts of polyvinyl chloride, 10 ~ 20 parts of tricalcium phosphate, 90 ~ 100 parts of potassium oxide, 20 ~ 70 parts of titanium dioxide, 60 ~ 90 parts of dimethyl silicone polymer.Preparation method: polyacrylonitrile, polysiloxanes, cellulose acetate, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and are melted, and are cooled and shaped；Carbonization treatment is carried out in no oxygen medium, then heats to 2000 ~ 3000 DEG C of 1 ~ 2h of reaction.Vitreous carbon biological stability of the invention is preferable, and elasticity modulus is 22 ~ 24GPa, and fatigue strength is 93 ~ 100MPa, and compression strength is 680 ~ 700MPa, and resistance to biodeterioration can be strong.

Description

The preparation method of vitreous carbon, artificial trachea
Technical field
The present invention relates to biological medicine Material Fields more particularly to a kind of for the vitreous carbon of artificial trachea and its preparation side Method.
Background technique
Vitreous carbon (GC) is a kind of novel carbon material vitreous carbon, small with air-tightness and good conductivity, coefficient of thermal expansion, The features such as quality is hard and is easily polished into mirror surface, chemical inertness, hydrogen overpotential with higher, therefore be suitable for doing electrochemistry With the working electrode material of electroanalysis.It is referred to as vitreous carbon because of its port pattern glass similar with structure feature, is 1962 Year has almost been invented simultaneously by the Davison and Japan Yamada of Britain.Since vitreous carbon has, density is small, high temperature resistant, anti- The characteristics such as infiltration, make it have been widely used in numerous areas such as chemical industry, metallurgical industry, electronics industry, bioengineering.
Vitreous carbon is with air-tightness and good conductivity, coefficient of thermal expansion are small, quality is hard and it is lazy to be easily polished into mirror surface, chemistry Property, hydrogen overpotential with higher the features such as, therefore be suitable for doing the working electrode material of electrochemistry and electroanalysis.Electrode Form has rodlike, disk, rotating circular disk, rotating ring disk electrode (r.r.d.e) etc..The applicable potential range of glassy carbon electrode is wider, both can be Inorganic matter is studied in negative potential area, can also study the redox reaction of the organic matter mostly occurred in positive potential area.Make base with it Body can also prepare mercury membrane glass-carbon electrode and chemically modified electrode.Electrode to be carried out before use surface polishing, chemical treatment and Electrochemical treatments.
Summary of the invention
The vitreous carbon and preparation method thereof that in view of the deficiencies of the prior art, the present invention provides a kind of for artificial trachea, glass Glass carbon resistance to biodeterioration can be strong.
In order to solve the above-mentioned technical problem, the invention adopts the following technical scheme:
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 40~100 parts of polyacrylonitrile, poly- silicon oxygen 30~40 parts of alkane, 80~100 parts of cellulose acetate, 20~30 parts of polyvinyl chloride, 10~20 parts of tricalcium phosphate, potassium oxide 90~ 100 parts, 20~70 parts of titanium dioxide, 60~90 parts of dimethyl silicone polymer.
As a further refinement of the present invention, it is used for the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 70 parts of polyacrylonitrile, 35 parts of polysiloxanes, 90 parts of cellulose acetate, 25 parts of polyvinyl chloride, 15 parts of tricalcium phosphate, potassium oxide 95 Part, 50 parts of titanium dioxide, 70 parts of dimethyl silicone polymer.
As a further refinement of the present invention, the partial size of titanium dioxide is 40~150 μm.
As a further refinement of the present invention, the molecular weight of polyacrylonitrile is 10000~20000.
The present invention also provides a kind of preparation methods of vitreous carbon for artificial trachea.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 2000~3000 DEG C of 1~2h of reaction, and the carbonization treatment time is 20 ~50min.
A kind of artificial trachea uses above-mentioned vitreous carbon to be made.
The utility model has the advantages that the vitreous carbon of the prior art due to bioenvironmental corrosion cause wherein metal ion to surrounding tissue Diffusion, vitreous carbon of the invention can be used as artificial trachea application, not perishable diffusion, be the glass because after carbonization treatment Carbon biological stability is preferable, elasticity modulus be 22~24GPa, fatigue strength be 93~100MPa, compression strength be 680~ 700MPa, resistance to biodeterioration can be strong.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 70 parts of polyacrylonitrile, polysiloxanes 35 Part, 90 parts of cellulose acetate, 25 parts of polyvinyl chloride, 15 parts of tricalcium phosphate, 95 parts of potassium oxide, 50 parts of titanium dioxide, poly dimethyl 70 parts of siloxanes.
The partial size of titanium dioxide is 100 μm.
The molecular weight of polyacrylonitrile is 15000.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 2500 DEG C of reaction 1.5h.
The carbonization treatment time is 40min.
Embodiment 2
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 40 parts of polyacrylonitrile, polysiloxanes 30 Part, 80 parts of cellulose acetate, 20 parts of polyvinyl chloride, 10 parts of tricalcium phosphate, 90 parts of potassium oxide, 20 parts of titanium dioxide, poly dimethyl 60 parts of siloxanes.
The partial size of titanium dioxide is 40 μm.
The molecular weight of polyacrylonitrile is 10000.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 2000 DEG C of reaction 1h.
The carbonization treatment time is 20min.
Embodiment 3
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 100 parts of polyacrylonitrile, polysiloxanes 40 Part, 100 parts of cellulose acetate, 30 parts of polyvinyl chloride, 20 parts of tricalcium phosphate, 100 parts of potassium oxide, 70 parts of titanium dioxide, poly- diformazan 90 parts of radical siloxane.
The partial size of titanium dioxide is 150 μm.
The molecular weight of polyacrylonitrile is 20000.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 3000 DEG C of reaction 2h.
The carbonization treatment time is 50min.
Embodiment 4
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 90 parts of polyacrylonitrile, polysiloxanes 33 Part, 85 parts of cellulose acetate, 22 parts of polyvinyl chloride, 12 parts of tricalcium phosphate, 93 parts of potassium oxide, 30 parts of titanium dioxide, poly dimethyl 70 parts of siloxanes.
The partial size of titanium dioxide is 60 μm.
The molecular weight of polyacrylonitrile is 12000.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 2200 DEG C of reaction 1.2h.
The carbonization treatment time is 25min.
Embodiment 5
For the vitreous carbon of artificial trachea, the raw material including following parts by weight meter: 80 parts of polyacrylonitrile, polysiloxanes 38 Part, 97 parts of cellulose acetate, 28 parts of polyvinyl chloride, 18 parts of tricalcium phosphate, 98 parts of potassium oxide, 60 parts of titanium dioxide, poly dimethyl 80 parts of siloxanes.
The partial size of titanium dioxide is 130 μm.
The molecular weight of polyacrylonitrile is 18000.
A kind of preparation method of the vitreous carbon for artificial trachea, comprising the following steps: polyacrylonitrile, polysiloxanes, vinegar Acid cellulose, polyvinyl chloride, tricalcium phosphate, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and fusing is cooled to Type；Carbonization treatment is carried out in no oxygen medium, then heats to 2800 DEG C of reaction 1.8h.
The carbonization treatment time is 40min.
Comparative example 1
Same as Example 1, difference is: being omitted in no oxygen medium the step of carrying out carbonization treatment.
Performance test
The properties of product for measuring embodiment and comparative example, the results are shown in Table 1.
Table 1
Conclusion: the vitreous carbon biological stability after carbonization treatment is preferable, will not be as the vitreous carbon of the prior art is due to life The corrosion of substance environment cause wherein metal ion to surrounding tissue spread, vitreous carbon elasticity modulus of the invention be 22~24GPa, Fatigue strength is 93~100MPa, and compression strength is 680~700MPa, and resistance to biodeterioration can be strong.

Claims (2)

1. for artificial trachea vitreous carbon preparation method, which is characterized in that vitreous carbon by following parts by weight meter raw material group At: 40~100 parts of polyacrylonitrile, 30~40 parts of polysiloxanes, 80~100 parts of cellulose acetate, 20~30 parts of polyvinyl chloride, phosphorus 10~20 parts of sour tricalcium, 90~100 parts of potassium oxide, 20~70 parts of titanium dioxide, 60~90 parts of dimethyl silicone polymer；
The partial size of titanium dioxide is 40~150 μm；
The molecular weight of polyacrylonitrile is 10000~20000；
The preparation method, comprising the following steps: polyacrylonitrile, polysiloxanes, cellulose acetate, polyvinyl chloride, tricresyl phosphate Calcium, potassium oxide, titanium dioxide, dimethyl silicone polymer are uniformly mixed, and are melted, and are cooled and shaped；It is carbonized in no oxygen medium Processing, then heats to 2000~3000 DEG C of 1~2h of reaction；The carbonization treatment time is 20~50min.
2. a kind of artificial trachea, which is characterized in that it uses vitreous carbon made from preparation method described in claim 1.
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