[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN107059242B - A kind of production method of high thermal conductivity pitch based carbon fiber composite preform - Google Patents

A kind of production method of high thermal conductivity pitch based carbon fiber composite preform Download PDF

Info

Publication number
CN107059242B
CN107059242B CN201710280213.8A CN201710280213A CN107059242B CN 107059242 B CN107059242 B CN 107059242B CN 201710280213 A CN201710280213 A CN 201710280213A CN 107059242 B CN107059242 B CN 107059242B
Authority
CN
China
Prior art keywords
thermal conductivity
high thermal
carbon fiber
based carbon
pitch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201710280213.8A
Other languages
Chinese (zh)
Other versions
CN107059242A (en
Inventor
李轩科
李保六
黄东
刘洪波
刘金水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan University
Original Assignee
Hunan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan University filed Critical Hunan University
Priority to CN201710280213.8A priority Critical patent/CN107059242B/en
Publication of CN107059242A publication Critical patent/CN107059242A/en
Application granted granted Critical
Publication of CN107059242B publication Critical patent/CN107059242B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/83—Carbon fibres in a carbon matrix
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/04—Carbonising or oxidising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5248—Carbon, e.g. graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5252—Fibers having a specific pre-form
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/526—Fibers characterised by the length of the fibers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5268—Orientation of the fibers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a kind of production methods of high thermal conductivity pitch based carbon fiber composite preform, using the viscose glue base or polyacrylonitrile-radical or isotropic pitch base or high thermal conductivity asphaltic base short carbon fiber net tire alternative stacked of the high thermal conductivity pitch based carbon fiber pantostrat and treatment of different temperature state of pre-oxidation or low-temperature carbonization state, Z-direction reinforcing fiber is introduced through needling process in pantostrat and the axial of net plies, Z-direction thermal conducting path has been got through in the introducing of Z-direction fiber, heat is also easier in the dredging and conduction of Z-direction, needling density is controlled in 10~50 needles/cm2, it is 0.25~0.75g/cm that bulk density, which is made,3Quasi- three-dimensional structure precast body blank, and by the precast body blank carry out charing and graphitization processing.The plastic major diameter high thermal conductivity pitch based carbon fiber abnormal shape green body of the present invention, compact dimensions and shape are unrestricted, easily prepared high thermal conductivity pitch based carbon fiber composite material, are suitble to bulk industrial production.

Description

A kind of production method of high thermal conductivity pitch based carbon fiber composite preform
Technical field
The invention belongs to the high thermal conductivity charcoal of resistance to ablation/charcoal, charcoal/pottery and related compound materials in military spacecraft heat management system Preform material preparation technical field, and in particular to it is prefabricated that a kind of high thermal conductivity pitch based carbon fiber needle pierces quasi- three-dimensional overall structure The production method of body.
Background technique
Thermal conductivity (λ) can be indicated with Debye formula are as follows: λ=1/3CVL, C is the thermal capacitance of unit volume, V in formula For the spread speed of phonon, L is the mean free path of phonon.Charcoal (graphite) material with more complete graphite-structure is come It says, room temperature thermal conduction rate is mainly determined by the mean free path L of phonon, and L is related with graphite microcrystal planar dimension La, La Bigger, L is bigger, and λ is higher.Yuan Guanming mentions high thermal conductivity pitch based carbon fiber diameter in " preparation researches of high thermal conductivity Carbon Materials " Increase, be conducive to sufficiently growing and being orientated for graphite microcrystal, that is, be conducive to the raising of thermal conductivity.Therefore, high thermal conductivity asphaltic base The modulus of Carbon fibe high (up to 965GPa), diameter are big (up to 100 μm or even grade), and showing property is crisp and is difficult to weave The characteristics of.
It is pre- for pre-oxidation, charing, viscose glue base, polyacrylonitrile-radical, the isotropic pitch based carbon fiber of graphitization state Body production method processed, needle pierce forming technique comparative maturity, but in the needling preform of high thermal conductivity pitch based carbon fiber composite material Field there are no patent and document report.Return the reason for this is that high thermal conductivity pitch based carbon fiber diameter is big, modulus is high, property is crisp, easy It is disconnected, it is difficult to caused by knitting forming, to limit high thermal conductivity pitch based carbon fiber composite material especially profiled parts in certain keys The application of component and the promotion of military spacecraft overall performance.
Chinese invention patent 201110307428.7,201310044981.5,201410139215.1 discloses one kind The preparation method of high thermal conductivity pitch based carbon fiber composite material is formed using single layer laminated cloth precast body lamination hot pressing.But exist Following deficiency: it firstly, when forming profiled parts, is limited by mold and hot pressing condition, it is difficult to which molding can not even form；Again Person, holds pressure and pressure applying moment more demanding, such as controls bad, it may appear that the defects of fiber slippage, layering.Feng Zhihai exists It refers to weave into three-dimensional volume firmly using unidirectional high thermal conductivity pitch based carbon fiber in " preparation of high thermal conductivity carbon/carbon compound material " text Body is knitted, this kind of method has the shortcomings that knitting skill and cost is excessively high, size-constrained, profiled piece can not weave.
Comprehensive analysis, in the existing forming method for high thermal conductivity pitch based carbon fiber composite preform, to consider Shrinking percentage is small, and the braiding of raw material is all made of graphitization finished fiber progress, and molding difficulty is big can not even to be formed, and is not suitable for criticizing Industrialized production is measured, model application is cannot achieve, seriously hinders the promotion of military spacecraft integral level.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of high thermal conductivity drip The production method of green based carbon fiber composite wood material pin thorn pseudo-three-dimensional preform.The characteristics of this method is that high thermal conductivity asphaltic base is continuous Carbon fibe pierces sacrificial layer (net plies) as needle as continuous carbon fibrous layer (pantostrat), short carbon fiber net tire.When acupuncture course, The characteristics of net plies is compared with pantostrat fiber softening is given full play to, net tire fiber is easier to bring Z-direction by needle, forms quasi- three-dimensional and integrally ties Structure precast body, and do not limited by geomery, quality is easy to control, is suitble to bulk industrial production and model application.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) Carbon fibe is first cut into short carbon fiber, then short carbon fiber is combed into short carbon fiber net tire (net plies), net tire Layer and the continuous pitch based carbon fiber of high thermal conductivity (pantostrat) alternative stacked, the weight percent of pantostrat and net plies are as follows: height is led Hot continuous pitch based carbon fiber 60~95%, short carbon fiber net tire 5~40%；Pantostrat with a thickness of 0.2~1.0mm, net tire Layer with a thickness of 0.05~0.5mm；
(2) each interlayer of pantostrat is staggeredly subjected to laying with 0 °/0 ° or 0 °/90 ° or 0 °/± 60 ° angles, specific angle according to Design is required according to composite structure and thermally conductive direction；
(3) Z-direction Carbon fibe, needling density control are introduced through needling process in pantostrat and the axial of net plies alternative stacked In 10~50 needles/cm2In range, it is 0.25~0.75g/cm that bulk density, which is made,3Needle pierce quasi- three-dimensional overall structure precast body Blank；
(4) above-mentioned precast body blank is subjected to charing and graphitization processing, obtains high thermal conductivity pitch based carbon fiber composite wood Material pin pierces quasi- three-dimensional overall structure precast body, and density is 0.20~0.70g/cm3；
(5) high thermal conductivity pitch based carbon fiber composite material is prepared using precast body.
Pantostrat described in step (1) is that 0.1~12K high thermal conductivity asphaltic base is without latitude unidirectional cloth or charcoal cloth, fiber condition Pre-oxidation or low-temperature carbonization state, fibre diameter are 5~100 μm；The net plies fiber be viscose glue base or polyacrylonitrile-radical or Isotropic pitch base or high thermal conductivity pitch based carbon fiber, fiber condition are pre-oxidation, low-temperature carbonization, high temperature charing or graphite Change processing status, the length of short carbon fiber is 20~150mm.
Surface density of the high thermal conductivity asphaltic base without latitude unidirectional cloth or charcoal cloth is 50~400g/m2, short carbon fiber net tire Surface density be 15~200g/m2。
For net plies compared with pantostrat fiber softening, Yi Beizhen brings Z-direction into, forms needle and pierces quasi- three-dimensional overall structure precast body.
Charing process temperature described in precast body step (4) be 800~1300 DEG C, graphitization processing temperature be 2500~ 3200℃。
The high thermal conductivity pitch based carbon fiber state of pantostrat is pre-oxidation or low-temperature carbonization state, which has preferable Textile, can be woven into charcoal cloth, laminated cloth or net the form of the foetus formula, and the pre-oxidation treatment temperature of high thermal conductivity pitch Carbon fibe is 220~ 280 DEG C, low-temperature carbonization temperature is 350~600 DEG C.
The hardness or rigidity of net plies Carbon fibe are lower than pantostrat pitch based carbon fiber, benefit softer than the Carbon fibe of pantostrat Z-direction is introduced in acupuncture course, forms Z-direction Carbon fibe；By controlling depth of needling, realizes the continuous of Z-direction Carbon fibe, reach Z To favorably dredging for heat.It when carrying out charing and graphitization processing to precast body, is carried out under inert gas shielding atmosphere.
Compared with the prior art, the present invention has the following advantages:
1, broken original net plies and pantostrat kinds of fibers and the consistent needle thorn pseudo-three-dimensional preform concept of material, The concept of needle thorn shuffling is introduced in high thermal conductivity pitch based carbon fiber precast body field, utilizes variety classes and state fibrous physics The different feature of performance, gives full play to its feature, prepares high thermal conductivity pitch based carbon fiber composite material pseudo-three-dimensional preform.
2, using the continuous Carbon fibe of high thermal conductivity asphaltic base as pantostrat, short carbon fiber net tire pierces sacrificial layer as needle.Needle thorn When process, the characteristics of short carbon fiber net tire is compared with continuous carbon fibrous layer fiber softening is given full play to, is easier to be brought into Z-direction by needle, and not It destroys pantostrat (performance for being conducive to heat-conducting layer heating conduction), forms quasi- three-dimensional overall structure precast body, plastic major diameter High thermal conductivity pitch based carbon fiber abnormal shape green body.
3, Z-direction thermal conducting path has been got through in the introducing of Z-direction fiber, it is easier to which heat can be described as in the dredging and conduction of Z-direction Three-dimensional overall thermal management material.
4, before preparing high thermal conductivity carbon fiber composite, charing and graphitization processing are carried out to precast body, makes pre- oxygen Change, low-temperature carbonization, high temperature carbonization state fiber be transformed into graphitization state, stress can be eliminated while improving carbon content, with High thermal conductivity carbon fiber composite is prepared conducive to the later period.
5, the prior art is overcome to reduce percent thermal shrinkage, is compiled using graphitization state high thermal conductivity pitch based carbon fiber The shortcomings that knitting, the high thermal conductivity pitch based carbon fiber using pre-oxidation or low-temperature carbonization state have the characteristics that certain stitchability, It is close by pretreated precast body Full size, without layering, without it is loose the features such as；By pretreated precast body, disappearing While except braiding stress, the promotion of subsequent composite material bulk thermal conductivity may also be advantageous for.
6, monolayer carbon cloth precast body lamination hot pressing mode when overcoming prior art preparation high thermal conductivity asphalt-base composite materials Molding deficiency, compact dimensions and shape are unrestricted, and quality is easy to control, and easily prepared high thermal conductivity pitch based carbon fiber is compound Material is suitble to bulk industrial production and model application.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is quasi- three-dimensional structure precast body schematic diagram prepared by the present invention, and wherein Z-direction fiber is that web of staple fibers plies draws Enter, it is consistent with net plies Carbon fibe type and property；
Fig. 2 is finished figure after quasi- three-dimensional structure precast body pretreatment prepared by the present invention.
Specific embodiment
Embodiment 1
The present embodiment is the specific embodiment of the present invention, specially following steps:
(1) be 5 μm by diameter, 0.1K high thermal conductivity asphaltic base oxidization fiber is prepared into unidirectional laminated cloth, with a thickness of 0.2mm, face Density is 50g/m2, constitute pantostrat；PAN based carbon fiber oxidization fiber is cut into 20mm, is combed into oxidization fiber net tire with combing machine for fur, With a thickness of 0.05mm, surface density 15g/m2；The continuous alternative stacked of the two, 0 °/0 ° of laminated cloth angle, wherein pantostrat and net The weight ratio of plies is 60:40, and K represents thousand radical of tow；
(2) Z is introduced to fiber, needling density through needling technique in web of staple fibers tire and the axial of continuous non-woven cloth laying Control is in 10 needles/cm2, it is 0.25g/cm that bulk density, which is made,3Quasi- three-dimensional structure precast body blank；
(3) precast body blank is placed in 2800 DEG C of graphitization processing under argon gas protection, obtaining density is 0.20g/cm3 Precast body finished product, finished product is complete, and quality is intact.
Quasi- three-dimensional structure precast body schematic diagram of the invention is as shown in Figure 1, wherein Z-direction fiber is that web of staple fibers plies draws Enter, consistent with net plies Carbon fibe type and property, 1a is pantostrat, i.e. high thermal conductivity pitch based carbon fiber layer (side)；1b is Pantostrat, i.e. high thermal conductivity pitch based carbon fiber layer (section), 2 be net plies, i.e., needle pierces sacrificial layer, and 3 be Z-direction fiber (with net tire Layer material is consistent).
Fig. 2 is finished figure after the quasi- three-dimensional structure precast body of preparation pre-processes.
Embodiment 2
(1) it is 20 μm by diameter, is prepared into unidirectionally by the 2K high thermal conductivity pitch based carbon fiber that 400 DEG C of low-temperature carbonizations are handled Laminated cloth, with a thickness of 0.3mm, surface density 200g/m2, constitute pantostrat；PAN Carbon fibe preoxided thread is cut into 70mm, is used Combing machine for fur is combed into oxidization fiber net tire, with a thickness of 0.3mm, surface density 90g/m2；The continuous alternative stacked of the two, laminated cloth angle 0 °/0 °, wherein the weight ratio of continuous Carbon fibe and net tire is 80:20；
(2) axial direction fibre, needling density are introduced through needling technique in web of staple fibers tire and the axial of continuous non-woven cloth laying Control is in 20 needles/cm2, it is 0.50g/cm that bulk density, which is made,3Quasi- three-dimensional structure precast body blank；
(3) 900 DEG C of charing process being placed in precast body blank under nitrogen protection, obtaining density is 0.47g/cm3's Precast body finished product, finished product is complete, and quality is intact.
Embodiment 3
(1) it is 100 μm by diameter, is prepared into list by the 12K high thermal conductivity pitch based carbon fiber that 400 DEG C of low-temperature carbonizations are handled To laminated cloth, with a thickness of 0.5mm, surface density 400g/m2；T700-12KPAN Carbon fibe is cut into 150mm, is combed with combing machine for fur Oxidization fiber net tire is managed into, with a thickness of 0.5mm, surface density 200g/m2；The continuous alternative stacked of the two, 0 ° of laminated cloth angle/ 90 °, wherein the weight ratio of continuous Carbon fibe and net tire is 95:5；
(2) axial direction fibre, needling density are introduced through needling technique in web of staple fibers tire and the axial of continuous non-woven cloth laying Control is in 50 needles/cm2, it is 0.75g/cm that bulk density, which is made,3Quasi- three-dimensional structure precast body blank；
(3) precast body blank is placed in 2800 DEG C of graphitization processing under argon gas protection, obtaining density is 0.70g/cm3 Precast body finished product, finished product is complete, and quality is intact.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention In the protection scope of art scheme.

Claims (5)

1.一种高导热沥青基炭纤维复合材料预制体的制作方法，其特征在于包括以下步骤：1. a preparation method of high thermal conductivity pitch-based carbon fiber composite material preform is characterized in that comprising the following steps: (1)先将炭纤维切成短炭纤维，再将短炭纤维梳理成短炭纤维网胎，成为网胎层，网胎层与连续层交替叠层，连续层为高导热连续沥青基炭纤维，连续层与网胎层的重量百分比为：高导热连续沥青基炭纤维60～95％，短炭纤维网胎5～40％；连续层的厚度为0.2～1.0mm，网胎层的厚度为0.05～0.5mm；所述连续层为0.1～12K高导热沥青基无纬单向布或炭布，纤维状态为预氧化或低温炭化状态，纤维直径为5～100μm，预氧化处理温度为220～280℃，低温炭化温度为350～600℃；(1) First cut the carbon fibers into short carbon fibers, and then comb the short carbon fibers into short carbon fiber mesh to become a mesh layer. The mesh layer and the continuous layer are alternately stacked, and the continuous layer is a high thermal conductivity continuous pitch-based carbon. Fiber, the weight percentage of the continuous layer and the mesh layer is: high thermal conductivity continuous pitch-based carbon fiber 60-95%, short carbon fiber mesh 5-40%; the thickness of the continuous layer is 0.2-1.0mm, the thickness of the mesh layer 0.05-0.5mm; the continuous layer is 0.1-12K high thermal conductivity pitch-based non-weft unidirectional fabric or carbon fabric, the fiber state is pre-oxidized or low-temperature carbonized state, the fiber diameter is 5-100 μm, and the pre-oxidation treatment temperature is 220 ～280℃, low temperature carbonization temperature is 350～600℃; (2)依据复合材料结构和导热方向要求，将连续层各层间以0°/0°或0°/90°或0°/±60°夹角交错进行铺层；(2) According to the requirements of the composite material structure and heat conduction direction, the layers of the continuous layers are staggered at an angle of 0°/0° or 0°/90° or 0°/±60°; (3)在连续层与网胎层交替叠层的轴向经针刺工艺引入Z向炭纤维，针刺密度控制在10～50针/cm2，制成体积密度为0.25～0.75g/cm3的针刺准三向整体结构预制体毛坯；( 3 ) Z-direction carbon fibers are introduced through the needle punching process in the axial direction where the continuous layer and the mesh layer are alternately laminated. 3 Needle-punched quasi-three-way overall structure prefabricated blanks; (4)将上述预制体毛坯进行炭化和石墨化处理，得到高导热沥青基炭纤维复合材料针刺准三向整体结构预制体，密度为0.20～0.70g/cm3。(4) carbonizing and graphitizing the preform blank to obtain a needle-punched quasi-three-way monolithic structure preform of high thermal conductivity pitch-based carbon fiber composite material with a density of 0.20-0.70 g/cm 3 . 2.根据权利要求1所述的一种高导热沥青基炭纤维复合材料预制体的制作方法，其特征在于：所述的高导热沥青基无纬单向布或炭布的面密度为50～400g/m2，短炭纤维网胎的面密度为15～200g/m2。2 . The method for making a high thermal conductivity pitch-based carbon fiber composite material preform according to claim 1 , wherein the areal density of the high thermal conductivity pitch-based non-weft unidirectional cloth or carbon cloth is 50～50 ～ 400 g/m 2 , and the surface density of the short carbon fiber mesh tire is 15-200 g/m 2 . 3.根据权利要求1所述的一种高导热沥青基炭纤维复合材料预制体的制作方法，其特征在于：网胎层较连续层纤维柔软，易被针带入Z向，形成针刺准三向整体结构预制体。3. The method for making a high thermal conductivity pitch-based carbon fiber composite material preform according to claim 1, wherein the mesh layer is softer than the fibers of the continuous layer, and is easily brought into the Z direction by a needle, forming a needle-punched standard Three-way monolithic structure prefab. 4.根据权利要求1所述的一种高导热沥青基炭纤维复合材料预制体的制作方法，其特征在于：步骤(4)所述的炭化处理温度为800～1300℃，石墨化处理温度为2500～3200℃。4 . The method for producing a high thermal conductivity pitch-based carbon fiber composite material preform according to claim 1 , wherein the carbonization treatment temperature in step (4) is 800-1300° C., and the graphitization treatment temperature is 4. 5 . 2500～3200℃. 5.根据权利要求1所述的一种高导热沥青基炭纤维复合材料预制体的制作方法，其特征在于：对预制体进行炭化和石墨化处理时，是在惰性气体保护气氛下进行的。5 . The method for producing a high thermal conductivity pitch-based carbon fiber composite material preform according to claim 1 , wherein the carbonization and graphitization of the preform is carried out under a protective atmosphere of inert gas. 6 .
CN201710280213.8A 2017-04-26 2017-04-26 A kind of production method of high thermal conductivity pitch based carbon fiber composite preform Expired - Fee Related CN107059242B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710280213.8A CN107059242B (en) 2017-04-26 2017-04-26 A kind of production method of high thermal conductivity pitch based carbon fiber composite preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710280213.8A CN107059242B (en) 2017-04-26 2017-04-26 A kind of production method of high thermal conductivity pitch based carbon fiber composite preform

Publications (2)

Publication Number Publication Date
CN107059242A CN107059242A (en) 2017-08-18
CN107059242B true CN107059242B (en) 2019-05-17

Family

ID=59603538

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710280213.8A Expired - Fee Related CN107059242B (en) 2017-04-26 2017-04-26 A kind of production method of high thermal conductivity pitch based carbon fiber composite preform

Country Status (1)

Country Link
CN (1) CN107059242B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108101568B (en) * 2017-11-29 2020-07-14 航天材料及工艺研究所 A kind of high thermal conductivity carbon/carbon composite material and preparation method thereof
CN108314458B (en) * 2018-02-09 2020-07-21 陕西天策新材料科技有限公司 Preparation method of high-thermal-conductivity carbon/carbon composite material
IT201800003741A1 (en) * 2018-03-19 2019-09-19 Freni Brembo Spa METHOD FOR MAKING A FIBROUS PREFORM AND A FIBROUS PREFORM SO OBTAINED
CN109809828A (en) * 2019-02-26 2019-05-28 航天材料及工艺研究所 A kind of preparation method of three-way balanced thermal conductivity carbon/carbon composite material
CN111636144A (en) * 2020-06-16 2020-09-08 浙江星辉新材料科技股份有限公司 Preparation process of carbon-carbon composite material flat plate
CN111892417B (en) * 2020-08-25 2021-05-14 内蒙古中晶科技研究院有限公司 Carbon fiber composite material and preparation method thereof
CN113308796A (en) * 2021-04-25 2021-08-27 上海大学绍兴研究院 Structure-reinforced needling preform for carbon/carbon composite material, carbon/carbon composite material and preparation method of carbon/carbon composite material
CN113292352B (en) * 2021-04-30 2022-09-23 北京化工大学 Preparation method of unidirectional high-thermal-conductivity carbon/carbon composite material
CN113215724A (en) * 2021-05-06 2021-08-06 因达孚先进材料(苏州)有限公司 Method for preparing carbon fiber cured hard felt by integral needling forming
CN115073197A (en) * 2022-02-18 2022-09-20 武汉科技大学 Preparation method of high-thermal-conductivity asphalt-based carbon fiber reinforced porous carbon composite material
CN115677370A (en) * 2022-10-26 2023-02-03 湖南博云新材料股份有限公司 Preparation method of carbon-ceramic brake material
CN115948866A (en) * 2022-10-27 2023-04-11 北京机科国创轻量化科学研究院有限公司 Multi-fiber state three-dimensional fabric composite forming method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1408920A (en) * 2002-08-27 2003-04-09 宜兴市天鸟高新技术有限公司 Non-woven needle-punched fabric and quasi three-dimensional prefab
CN101575766A (en) * 2009-06-10 2009-11-11 西安超码科技有限公司 Method for manufacturing needle-punched carbon fiber pseudo-three-dimensional preform
CN103233323B (en) * 2013-05-07 2015-09-02 江苏天鸟高新技术股份有限公司 Fibrae circulares prefabricated component and preparation method thereof
CN105965989A (en) * 2016-05-06 2016-09-28 湖南大学 Preparation method of carbon fiber reinforced resin composite material
CN105967715A (en) * 2016-05-06 2016-09-28 湖南大学 Preparation method of carbon/carbon composite material with high heat conduction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1408920A (en) * 2002-08-27 2003-04-09 宜兴市天鸟高新技术有限公司 Non-woven needle-punched fabric and quasi three-dimensional prefab
CN101575766A (en) * 2009-06-10 2009-11-11 西安超码科技有限公司 Method for manufacturing needle-punched carbon fiber pseudo-three-dimensional preform
CN103233323B (en) * 2013-05-07 2015-09-02 江苏天鸟高新技术股份有限公司 Fibrae circulares prefabricated component and preparation method thereof
CN105965989A (en) * 2016-05-06 2016-09-28 湖南大学 Preparation method of carbon fiber reinforced resin composite material
CN105967715A (en) * 2016-05-06 2016-09-28 湖南大学 Preparation method of carbon/carbon composite material with high heat conduction

Also Published As

Publication number Publication date
CN107059242A (en) 2017-08-18

Similar Documents

Publication Publication Date Title
CN107059242B (en) A kind of production method of high thermal conductivity pitch based carbon fiber composite preform
CN108314458B (en) Preparation method of high-thermal-conductivity carbon/carbon composite material
CN103909691B (en) Carbon-fiber needled preformed body with gradiently-changed body density
JP2894828B2 (en) Carbon fiber preform and method for producing the same
CN111636144A (en) Preparation process of carbon-carbon composite material flat plate
CN101691684B (en) A kind of preparation and carbonization method of acupuncture pre-oxidized silk prefabricated body
JP2002541002A (en) Cordal preform for fiber-reinforced products and method of making same
CN108046819A (en) A kind of structure-function integration C/C-SiC friction materials and preparation method
CN104711775A (en) Continuous dispersible filament fiber needled felt and preparation method thereof
CN105421036B (en) High-temperature composite material graphene method of modifying, high-temperature composite material and preparation method
KR100503499B1 (en) Method for manufacturing the preform of high temperature refractory, using needle-punching process
CN110485047B (en) Quasi-three-dimensional preform for aircraft brake disc and preparation method thereof
KR101628461B1 (en) Carbon fiber insulator and preparing method for thereof
CN113502606A (en) Carbon brake disc preform and preparation method thereof
CN102041564B (en) Drying device for fiber beam spinning and method
CN211057374U (en) Quasi-three-dimensional prefabricated body for airplane brake disc
CN101607831A (en) A manufacturing process of needle-punched carbon/carbon composite material
CN112047750B (en) Composite structure friction material and preparation method thereof
CN210177000U (en) Carbon-carbon heating body structure
CN110952223A (en) Novel acupuncture three-dimensional structure
CN215163568U (en) Carbon brake disc preform
KR20170135399A (en) Manufacturing of 3-dimensional structural carbon fiber fabric
CN116516571A (en) Net tyre, prefabricated body, carbon fiber composite material and crucible side
CN116330757A (en) High-strength laminated carbon-carbon composite material and preparation method thereof
CN109866479A (en) Braided fabric Nomex aggregate and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190517

CF01 Termination of patent right due to non-payment of annual fee