CN108577957A - A kind of C/C-SiC composite materials bone plate and preparation method thereof - Google Patents

A kind of C/C-SiC composite materials bone plate and preparation method thereof Download PDF

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CN108577957A
CN108577957A CN201810196433.7A CN201810196433A CN108577957A CN 108577957 A CN108577957 A CN 108577957A CN 201810196433 A CN201810196433 A CN 201810196433A CN 108577957 A CN108577957 A CN 108577957A
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sic
bone plate
composite material
sic composite
composite materials
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肖涛
刘立宏
于澍
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Central South University
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Central South University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/024—Carbon; Graphite
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/082—Inorganic materials
    • A61L31/084—Carbon; Graphite
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular materials
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/16—Biologically active materials, e.g. therapeutic substances
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/252—Polypeptides, proteins, e.g. glycoproteins, lipoproteins, cytokines
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/412—Tissue-regenerating or healing or proliferative agents
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
    • A61L2300/602—Type of release, e.g. controlled, sustained, slow
    • A—HUMAN NECESSITIES
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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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
    • A61L2300/606—Coatings
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
    • A61L2300/62—Encapsulated active agents, e.g. emulsified droplets
    • A61L2300/622—Microcapsules

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Abstract

The invention discloses a kind of C/C SiC ceramic matrix composite materials bone plate and preparation method thereof, which includes by 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics C/C composite material bases that alternative stacked is formed successively；The C/C composite material bases interlayer fills needle-punched carbon fiber, and SiC is filled in the hole of C/C composite material bases；The surface of C/C composite material bases is coated with pyrolysis layer of charcoal；And the surface of the pyrolysis layer of charcoal is coated with SiC layer.The C/C SiC ceramic matrix composite material bone plate good biocompatibilities, mechanical property is close with people's bone, and interference or blocking will not be generated to medical inspection.

Description

A kind of C/C-SiC composite materials bone plate and preparation method thereof
Technical field
The present invention relates to biomedical material technologies, and in particular to a kind of C/C-SiC composite materials bone plate and its Preparation method.
Background technology
Traditional bone plate is mostly metal material, predominantly stainless steel and titanium alloy.But the bone plate of metal material exists Problems with is primarily present in clinical application：(1) there are stress shieldings, are easily destroyed fracture blood fortune；(2) it is also easy to produce in vivo Electrochemical reaction is corroded；(3) healing of fracture cannot be directly facilitated, easily occur delayed union or disunion, bone plate fracture, The postoperative complications such as screw loosening falls off, rejection；(4) patient's x-ray, CT and MRI inspection results are frequently subjected to metal synthetism Plate seriously affects, and causes inspection result inaccurate.
Patent document CN2223081Y discloses a kind of Carbon Fibre Reinforced Expoxide Resin Plate, will infiltrate epoxide-resin glue The carbon fiber woven cloth of liquid is parallel to be stacked, cure under pressure, this patent obtains product and is easy out after lathe process Existing fiber burr, the surrounding tissue after implantation are easy stimulated generation inflammatory reaction.Patent document CN1296013C discloses one Kind carbon fiber reinforced polyetheretherketonecomposite composite material bone plate, is obtained being injection moulded after carbon fiber particles and polyether-ether-ketone mixing granulation , due to be injection moulding, not can be used length be more than 2cm continuous carbon fibre, can not obtain and continuously sprawl structure, because This, the humidification that carbon fiber is played does not play a role completely.
Therefore, there is an urgent need for developing a kind of good biocompatibility, mechanical property is more adapted to people's bone, and will not be to the inspection of patient The bone plate that the fruit that comes to an end impacts, to replace existing bone plate.
Invention content
It is an object of the present invention to overcome the shortcomings of to mention in background above technology and defect, it is multiple to provide a kind of C/C-SiC Condensation material bone plate and preparation method thereof, the bone plate good biocompatibility, mechanical property is close with people's bone, will not be examined to medicine Look into generation interference or blocking.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of C/C-SiC composite materials bone plate,
Include by 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics C/C composite material bases that alternative stacked is formed successively Material；
The C/C composite material bases interlayer fills needle-punched carbon fiber, is filled in the hole of C/C composite material bases SiC；
The surface of C/C composite material bases is coated with pyrolysis layer of charcoal；And
The surface of the pyrolysis layer of charcoal is coated with SiC layer.
Preferably, the simple substance Si for accounting for SiC layer gross mass 0.1%~0.5% is contained in the SiC layer.
Preferably, the loading of the needle-punched carbon fiber is the 10%~15% of C/C composite material base quality, and needle pierces charcoal A diameter of 5 μm~7 μm of fiber.
Preferably, the pyrolysis layer of charcoal is multilayer, and the thickness of each layer of pyrolytic carbon is 2mm~5mm, total packet of pyrolytic carbon The amount of covering is the 5%~10% of C/C composite material base quality.
Preferably, the elasticity modulus of the bone plate be 10GPa~30GPa, compression strength >=200MPa, bending strength >= 220MPa, shear strength >=16MPa, tensile strength are 110MPa~130MPa, elongation percentage≤2%.
A kind of preparation method of above-mentioned C/C-SiC composite material bones plate, includes the following steps：
(1) 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut by design size, then by cut 0 ° of nonwoven Cloth, carbon fibre web tire and 90 ° of non-woven fabrics alternative stacked successively are filled needle-punched carbon fiber as reinforced phase in interlayer, and are passed through SiC is filled in the hole of product of the chemical vapor infiltration after alternative stacked；
(2) product of alternative stacked obtained by step (1) is placed on warm table and is preheated, on the product of alternative stacked Pyrolytic carbon is coated, discharge interlayer gas is then squeezed in pyrolysis layer of charcoal outer cladding SiC by chemical vapour deposition technique, then will Product is placed in preliminary mould, the shape pre-shaped designed by preliminary mould；
(3) the good product of step (2) pre-shaped is put into preheating in preheating oven, then takes out and is put into progress in molding die It is hot-forming, obtain C/C-SiC composite materials；
(4) mold of the step (3) after hot-forming is cooled, takes out product, product is cleaned and is dried, so CNC processing is carried out according to the design drawing of bone plate afterwards, obtains C/C-SiC composite material bone plate precast bodies.
Above-mentioned preparation method, it is preferred that in the step (3), the temperature of preheating is 45 DEG C~75 DEG C, the time of preheating For 40min~60min.
Above-mentioned preparation method, it is preferred that in the step (3), hot-forming temperature is 100 DEG C~250 DEG C, pressurization Time is 60min~120min, external pressure 100kg/cm2~120kg/cm2。
Above-mentioned preparation method, it is preferred that in the step (3), the volume content of carbon fiber in C/C-SiC composite materials Density >=1.75g/cm of >=35%, C/C-SiC composite material3。
Above-mentioned preparation method, it is preferred that in the step (4), cooling temperature is 35 DEG C~45 in the operation that cools DEG C, cooling time is 5min~10min, and cooling external pressure is 110kg/cm2~120kg/cm2；It is dry in the step (4) Temperature be 155 DEG C~165 DEG C.
Compared with the prior art, the advantages of the present invention are as follows：The present invention passes through 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of nothings Alternative stacked forms carbon-carbon composite matrix to woven fabric successively, SiC is filled in the hole of C/C matrices of composite materials, in interlayer Fill needle-punched carbon fiber as reinforced phase, pyrolytic carbon is coated on product, pyrolysis layer of charcoal surface coated Si/C, through pre-shaped with Hot-forming obtained C/C-SiC composite materials, then by C/C-SiC composite processings at bone plate, gained bone plate has Good biocompatibility, fatigue behaviour is good, and mechanical property is close with people's bone, and will not be to productions such as MRI, CT, x-ray inspections Raw interference or barrier effect.
Description of the drawings
Fig. 1 is that the compressed pattern of people's bone and 1 gained C/C-SiC composite materials of the embodiment of the present invention compares photo, in Fig. 1 Left figure is people's bone, and right figure is C/C-SiC composite materials.
Fig. 2 is the photo of 1 gained C/C-SiC composite material bones plate of the embodiment of the present invention.
Fig. 3 is the microscopic appearance (SEM) of people's bone and 1 gained C/C-SiC composite material bones plate of the embodiment of the present invention.
Fig. 4 is the SEM figures for the C/C-SiC composite materials for not impregnating simulated body fluid.
Fig. 5 is the SEM figures for impregnating C/C-SiC composite material of the simulated body fluid after 70 days.
Fig. 6 is the interpolation energy spectrum diagram of Fig. 5.
Fig. 7 is remaining bending strength-displacement curve after 1 gained C/C-SiC Composites Fatigues of the embodiment of the present invention.
Specific implementation mode
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention Protection domain.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city Field is commercially available or can be prepared by existing method.
Embodiment 1：
A kind of preparation method of the C/C-SiC composite material bones plate of the present invention, includes the following steps：
The size that 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut into design block, is designed according to mechanical structure It is required that by cut 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics successively alternative stacked, needle-punched carbon fiber is filled in interlayer As reinforced phase, and SiC is filled in the hole of the product by chemical vapor infiltration after alternative stacked.
The product of gained alternative stacked is placed on warm table and is preheated, two layers of heat is coated on the product of alternative stacked Charcoal is solved, the thickness of every layer of pyrolytic carbon is 3mm, and total covering amount of the pyrolytic carbon on product is the 5% of quality of item；Then pass through Chemical vapour deposition technique squeezes discharge interlayer gas, pressing is suitable, and product is then placed on pre-shaped in pyrolysis layer of charcoal outer cladding SiC In mould, by the shape pre-shaped of preliminary mould design.
The good product of pre-shaped is put into preheating oven and is preheated, preheating temperature is 45 DEG C, preheating time 40min, then Taking-up is put into molding die, and molding covers tightly, and mold is sent into hot-forming progress is hot-forming, and hot-forming temperature is 100 DEG C, pressing time 60min, external pressure 100kg/cm2, C/C-SiC composite materials are obtained, gained C/C-SiC is compound The volume content of carbon fiber is 39% in material, and the density of carbon-carbon composite is 1.87g/cm3。
Mold after will be hot-forming is sent into cooling bench and cools, and cooling temperature is 35 DEG C, and cooling time, 5min, cold But external pressure is 110kg/cm2, it is re-fed into stripping station, product is taken out in die sinking, then product is cleaned and dried, dry Temperature is 155 DEG C, then carries out CNC processing according to the design drawing of bone plate, obtains C/C-SiC composite material bones plate.
People's bone with the compressed pattern comparison photo of gained C/C-SiC composite materials (behave in Fig. 1 as shown in Figure 1 by left figure Bone, right figure are C/C-SiC composite materials).The photo of gained C/C-SiC composite material bones plate is as shown in Figure 2.
People's bone and the microscopic appearance of C/C-SiC composite material bones plate obtained by the present embodiment are as shown in Figure 3.As seen from Figure 3, The bone plate (h in Fig. 3) of people's bone (b in Fig. 3) and the present embodiment is porous structure, this porous structure can be cell adherence and The offer smoothly channel of growing up of bone tissue, can reinforce the interface cohesion degree between implant and bone tissue.
Pass through the biocompatibility of simulated body fluid immersion test research material.The C/C-SiC for not impregnating simulated body fluid is compound The SEM of material schemes as shown in figure 4, the SEM for impregnating C/C-SiC composite material of the simulated body fluid after 70 days schemes as shown in figure 5, Fig. 6 For the interpolation energy spectrum diagram of Fig. 5.Known by gamma-spectrometric data analysis, the surface of C/C-SiC composite materials after simulated body fluid impregnates A surface sediments are deposited, which is made of Ca, P and O element, and wherein the atomic ratio of calcium phosphorus is 1.6, is shown in C/C- There is osteoid apatite generation on SiC ceramic matrix composite material surface, illustrates that gained C/C-SiC composite materials can promote the healing of bone.
The fatigue behaviour of gained C/C-SiC composite materials is studied, C/C-SiC composite materials respectively 60%, 70%, remaining bending strength-displacement curve after the load of 80%, 90% stress fatigue is as shown in Figure 7.As seen from Figure 7, work as fatigue When stress level is relatively low in the process (60% and 70%), remaining bending strength is equal to or slightly higher than static buckling intensity, from figure As can be seen that curve table sample residue bending strength-displacement curve under both stress levels reveals longer displacement, reflection Sample is in plasticity after fatigue；After horizontal (the 80% and 90%) fatigue loading of higher stress, the remaining bending strength of sample is aobvious It writes higher than under static buckling intensity, such as 90% stress level, the bending strength of sample is promoted up to 42.94%.But with The raising material plasticity of intensity is declined, material catastrophic failure.In addition, occurring subtle on curve after high stress level load Rank, i.e. the Second bearing face of material, these Second bearing faces are the main reason for causing remaining bending strength to be promoted.Known by Fig. 7, The C/C-SiC composite materials have good fatigue behaviour.
The mechanical property of gained C/C-SiC composite material bones plate is tested, C/C-SiC composite material bones plate Mechanical property parameters are as shown in table 1.
Embodiment 2：
A kind of preparation method of the C/C-SiC composite material bones plate of the present invention, includes the following steps：
The size that 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut into design block, is designed according to mechanical structure It is required that by cut 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics successively alternative stacked, needle-punched carbon fiber is filled in interlayer As reinforced phase.
The product of gained alternative stacked is placed on warm table and is preheated, two layers of heat is coated on the product of alternative stacked Charcoal is solved, the thickness of every layer of pyrolytic carbon is 4mm, and total covering amount of the pyrolytic carbon on product is the 7% of quality of item, squeezes discharge Interlayer gas, pressing is suitable, and then product is placed in preliminary mould, the shape pre-shaped designed by preliminary mould.
The good product of pre-shaped is put into preheating oven and is preheated, preheating temperature is 55 DEG C, preheating time 50min, then Taking-up is put into molding die, and molding covers tightly, and mold is sent into hot-forming progress is hot-forming, and hot-forming temperature is 150 DEG C, pressing time 80min, external pressure 105kg/cm2, C/C-SiC composite materials are obtained, gained C/C-SiC is compound It is 1.90g/cm that the volume content of carbon fiber, which is the density of 40%, C/C-SiC composite materials, in material3。
Mold after will be hot-forming is sent into cooling bench and cools, and cooling temperature is 38 DEG C, and cooling time, 6min, cold But external pressure is 112kg/cm2, it is re-fed into stripping station, product is taken out in die sinking, then product is cleaned and dried, dry Temperature is 158 DEG C, then carries out CNC processing according to the design drawing of bone plate, obtains C/C-SiC composite material bones plate.
The mechanical property of gained C/C-SiC composite material bones plate is tested, C/C-SiC composite material bones plate Mechanical property parameters are as shown in table 1.
Embodiment 3：
A kind of preparation method of the C/C-SiC composite material bones plate of the present invention, includes the following steps：
The size that 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut into design block, is designed according to mechanical structure It is required that by cut 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics successively alternative stacked, needle-punched carbon fiber is filled in interlayer As reinforced phase.
The product of gained alternative stacked is placed on warm table and is preheated, two layers of heat is coated on the product of alternative stacked Charcoal is solved, the thickness of every layer of pyrolytic carbon is 5mm, and total covering amount of the pyrolytic carbon on product is the 9% of quality of item, squeezes discharge Interlayer gas, pressing is suitable, and then product is placed in preliminary mould, the shape pre-shaped designed by preliminary mould.
The good product of pre-shaped is put into preheating oven and is preheated, preheating temperature is 65 DEG C, preheating time 55min, then Taking-up is put into molding die, and molding covers tightly, and mold is sent into hot-forming progress is hot-forming, and hot-forming temperature is 200 DEG C, pressing time 100min, external pressure 110kg/cm2, C/C-SiC composite materials are obtained, gained C/C-SiC is multiple It is 1.95g/cm that the volume content of carbon fiber, which is the density of 42%, C/C-SiC composite materials, in condensation material3。
Mold after will be hot-forming is sent into cooling bench and cools, and cooling temperature is 40 DEG C, and cooling time, 8min, cold But external pressure is 115kg/cm2, it is re-fed into stripping station, product is taken out in die sinking, then product is cleaned and dried, dry Temperature is 160 DEG C, then carries out CNC processing according to the design drawing of bone plate, obtains C/C-SiC composite material bones plate.
The mechanical property of gained C/C-SiC composite material bones plate is tested, C/C-SiC composite material bones plate Mechanical property parameters are as shown in table 1.
Embodiment 4：
A kind of preparation method of the C/C-SiC composite material bones plate of the present invention, includes the following steps：
The size that 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut into design block, is designed according to mechanical structure It is required that by cut 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics successively alternative stacked, needle-punched carbon fiber is filled in interlayer As reinforced phase.
The product of gained alternative stacked is placed on warm table and is preheated, two layers of heat is coated on the product of alternative stacked Charcoal is solved, the thickness of every layer of pyrolytic carbon is 5mm, and total covering amount of the pyrolytic carbon on product is the 10% of quality of item, the row of extruding Go out interlayer gas, pressing is suitable, and then product is placed in preliminary mould, the shape pre-shaped designed by preliminary mould.
The good product of pre-shaped is put into preheating oven and is preheated, preheating temperature is 75 DEG C, preheating time 60min, then Taking-up is put into molding die, and molding covers tightly, and mold is sent into hot-forming progress is hot-forming, and hot-forming temperature is 250 DEG C, pressing time 120min, external pressure 120kg/cm2, C/C-SiC composite materials are obtained, gained C/C-SiC is multiple It is 1.98g/cm that the volume content of carbon fiber, which is the density of 45%, C/C-SiC composite materials, in condensation material3。
Mold after will be hot-forming is sent into cooling bench and cools, and cooling temperature is 45 DEG C, cooling time 10min, Cooling external pressure is 120kg/cm2, it is re-fed into stripping station, product is taken out in die sinking, then product is cleaned and dried, dry Temperature be 165 DEG C, then according to the design drawing of bone plate carry out CNC processing, obtain C/C-SiC composite material bones plate.
The mechanical property of gained C/C-SiC composite material bones plate is tested, C/C-SiC composite material bones plate Mechanical property parameters are as shown in table 1.
The mechanical property correction data of the bone plate of 1 each embodiment of table and existing common synthetism plate material and people's bone
Synthetism plate material Tensile strength MPa Elastic modulus G Pa Elongation percentage %
Embodiment 1 112-135 9-27 1.5
Embodiment 2 90-140 7-26 1.4
Embodiment 3 85-137 7-29 1.5
Embodiment 4 95-132 8-30 1.4
People's bone 80-150 1-30 1.5
317 stainless steels 670-710 192-230 12
Titanium alloy 770-810 95-129 10
Co-Cr-Mo alloys 428-470 190-230 18
C/ nylon 230-270 6-14 5.4
By table 1 as it can be seen that the tensile strength of C/C-SiC composite material bones plate, elasticity modulus obtained by 1-4 of the embodiment of the present invention And elongation percentage is close with people's bone, and the mechanical property of 317 stainless steels, titanium alloy, Co-Cr-Mo alloys and C/ nylon composite materials It can there are larger gaps with the mechanical property of people's bone.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of C/C-SiC composite materials bone plate, it is characterised in that：
Include by 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics C/C composite material bases that alternative stacked is formed successively；
The C/C composite material bases interlayer fills needle-punched carbon fiber, and SiC is filled in the hole of C/C composite material bases；
The surface of C/C composite material bases is coated with pyrolysis layer of charcoal；And
The surface of the pyrolysis layer of charcoal is coated with SiC layer.
2. C/C-SiC composite materials bone plate according to claim 1, it is characterised in that：Contain in the SiC layer and accounts for The simple substance Si of SiC layer gross mass 0.1%~0.5%.
3. C/C-SiC composite materials bone plate according to claim 1, it is characterised in that：The needle-punched carbon fiber is filled out Charge be C/C composite material base quality 10%~15%, a diameter of 5 μm~7 μm of needle-punched carbon fiber.
4. C/C-SiC composite materials bone plate according to claim 1, it is characterised in that：The pyrolysis layer of charcoal is multilayer, The thickness of each layer of pyrolytic carbon is 2mm~5mm, total covering amount of pyrolytic carbon be C/C composite material base quality 5%~ 10%.
5. C/C-SiC composite materials bone plate according to claim 1, it is characterised in that：The springform of the bone plate It is 10GPa~30GPa to measure, compression strength >=200MPa, bending strength >=220MPa, shear strength >=16MPa, and tensile strength is 110MPa~130MPa, elongation percentage≤2%.
6. such as the preparation method of C/C-SiC composite materials bone plate according to any one of claims 1 to 5, including following step Suddenly：
(1) 0 ° of non-woven fabrics, carbon fibre web tire and 90 ° of non-woven fabrics are cut by design size, then by cut 0 ° of non-woven fabrics, carbon Web tire and 90 ° of non-woven fabrics alternative stacked successively, fill needle-punched carbon fiber as reinforced phase, and pass through chemical gas in interlayer SiC is filled in the hole of product of the phase osmosis after alternative stacked；
(2) product of alternative stacked obtained by step (1) is placed on warm table and is preheated, coated on the product of alternative stacked Then pyrolytic carbon squeezes discharge interlayer gas, then by product by chemical vapour deposition technique in pyrolysis layer of charcoal outer cladding SiC It is placed in preliminary mould, the shape pre-shaped designed by preliminary mould；
(3) the good product of step (2) pre-shaped is put into preheating in preheating oven, then takes out and is put into progress hot pressing in molding die Molding, obtains C/C-SiC composite materials；
(4) mold of the step (3) after hot-forming is cooled, takes out product, product is cleaned and is dried, is then pressed CNC processing is carried out according to the design drawing of bone plate, obtains C/C-SiC composite material bone plate precast bodies.
7. the preparation method of C/C-SiC composite materials bone plate according to claim 6, it is characterised in that：The step (3) in, the temperature of preheating is 45 DEG C~75 DEG C, and the time of preheating is 40min~60min.
8. the preparation method of C/C-SiC composite materials bone plate according to claim 6, it is characterised in that：The step (3) in, hot-forming temperature is 100 DEG C~250 DEG C, and pressing time is 60min~120min, external pressure 100kg/ cm2~120kg/cm2。
9. the preparation method of C/C-SiC composite materials bone plate according to claim 6, it is characterised in that：The step (3) in, density >=1.75g/ of volume content >=35%, C/C-SiC composite material of carbon fiber in C/C-SiC composite materials cm3。
10. the preparation method of the C/C-SiC composite material bones plate according to any one of claim 6~9, feature exist In：
In the step (4), cooling temperature is 35 DEG C~45 DEG C in the operation that cools, and cooling time is 5min~10min, cold But external pressure is 110kg/cm2~120kg/cm2；
In the step (4), dry temperature is 155 DEG C~165 DEG C.
CN201810196433.7A 2018-03-09 2018-03-09 A kind of C/C-SiC composite materials bone plate and preparation method thereof Pending CN108577957A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110585491A (en) * 2019-09-27 2019-12-20 长沙晟天新材料有限公司 Carbon fiber composite bone fracture plate and preparation method thereof
CN110841114A (en) * 2019-09-27 2020-02-28 长沙晟天新材料有限公司 Carbon fiber composite material artificial bone and preparation method thereof
CN111925226A (en) * 2020-01-19 2020-11-13 湖南碳康生物科技有限公司 Carbon fiber composite skull patch and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110585491A (en) * 2019-09-27 2019-12-20 长沙晟天新材料有限公司 Carbon fiber composite bone fracture plate and preparation method thereof
CN110841114A (en) * 2019-09-27 2020-02-28 长沙晟天新材料有限公司 Carbon fiber composite material artificial bone and preparation method thereof
CN110841114B (en) * 2019-09-27 2021-12-14 长沙晟天新材料有限公司 Carbon fiber composite material artificial bone and preparation method thereof
CN110585491B (en) * 2019-09-27 2021-12-14 长沙晟天新材料有限公司 Carbon fiber composite bone fracture plate and preparation method thereof
CN111925226A (en) * 2020-01-19 2020-11-13 湖南碳康生物科技有限公司 Carbon fiber composite skull patch and preparation method thereof
CN111925226B (en) * 2020-01-19 2022-04-08 湖南碳康生物科技有限公司 Carbon fiber composite skull patch and preparation method thereof

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