CN104649702A - Preparation method of high-strength light carbon fiber composite material - Google Patents
Preparation method of high-strength light carbon fiber composite material Download PDFInfo
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- CN104649702A CN104649702A CN201510103864.0A CN201510103864A CN104649702A CN 104649702 A CN104649702 A CN 104649702A CN 201510103864 A CN201510103864 A CN 201510103864A CN 104649702 A CN104649702 A CN 104649702A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 39
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 238000004513 sizing Methods 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 45
- 229910052799 carbon Inorganic materials 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 23
- 229910052796 boron Inorganic materials 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 150000001722 carbon compounds Chemical class 0.000 claims description 20
- 238000005229 chemical vapour deposition Methods 0.000 claims description 20
- -1 polyphenylene quinoxaline Polymers 0.000 claims description 16
- 238000000280 densification Methods 0.000 claims description 13
- 229920001342 Bakelite® Polymers 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 12
- 239000004637 bakelite Substances 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 11
- 238000005087 graphitization Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 10
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- 229960004756 ethanol Drugs 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 150000001638 boron Chemical class 0.000 claims description 4
- 239000006227 byproduct Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 238000003763 carbonization Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 7
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229920013657 polymer matrix composite Polymers 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Abstract
The invention relates to a preparation method of a high-strength light carbon fiber composite material. The preparation method comprises the following steps: 1, applying a sizing agent to the surfaces of continuous filament carbon fibers, and then winding the preprocessed continuous filament carbon fibers to form a highly oriented preformed blank of a cone-shaped C/C composite material; (2) immersing the preformed blank obtained in the step 1 in vacuum; (3) performing pressure carbonization on prepreg obtained in the step (2) under the protection of nitrogen, soaking into an impregnant solution to fill in the voids, and then performing CVD; (4) graphitizing a product obtained in the step (3), immersing and then performing the CVD; and (5) activating the compact C/C composite product obtained in the step (4) by use of water vapor to obtain a high-strength light C/C composite material. The high-strength light C/C composite material has the tensile strength of 800MPa or above, the thermal conductivity is 500-530W/(m.K) and the thermal diffusivity is 4.4cm2/s.
Description
Technical field
The present invention relates to a kind of preparation method of Carbon Materials, particularly a kind of preparation method of carbon fiber composite.
Background technology
The inorganic non-metallic based composites that carbon/carbon (C/C) matrix material is made up of carbon fiber and carbon base body, its modulus is high, intensity is large, wear-resistant, corrosion-resistant, absorbing is good, particularly have excellent thermostability and thermal shock resistance, at high temperature mechanical strength loss is little.Since the exploitation sixties, become a kind of type material of World High Technology field primary study and exploitation.At aerospace field, there is important using value, as the heatshield material of aircraft brake sheet, reentry vehicle, rocket nose cone, engine jet pipe, thrust chamber and combustion liner etc.
According to the type of the matrix precursor that matrix material densification process adopts, the manufacture craft of carbon/carbon compound material mainly contains two kinds of methods: one is chemical vapour deposition (CVD) method, it is with hydrocarbon gas (CH4, C2H4, Sweet natural gas etc.) be matrix precursor, after these gases at high temperature produce pyrolytic reaction, C is deposited on precast body surface with the form of atom or drop or oozes in the space of long-pending precast body inside, this method can obtain better performance, the carbon/carbon compound material of higher density, shortcoming is that equipment is complicated, fabrication cycle is long, material use efficiency low (only having about 3%), cost is high.Another kind method is called liquid impregnation-carborization, and it is that these raw materials series of complex chemical transformation at high temperature occur and are converted into matrix carbon with thermoplastic bitumen or thermosetting resin for matrix precursor.This method is raw materials used cheap, and equipment is simple, fabrication cycle is short, thus receives the attention of many scientific workers in world wide, becomes a focus of carbon/carbon compound material research.Introducing catalyzer and carry out catalyzed graphitization to thermosetting resin charcoal, is a kind of effective ways improving phenolic resin carbon degree of graphitization.The report such as Li Chongjun adds pure boron as catalyzer in resin carbon micro mist, graphitization temperature be 2100 DEG C, under catalyzer boron consumption is less than 5.0wt% processing condition, the degree of graphitization of resin carbon base carbon/carbon composite reaches 82%, and the carbon/carbon composite of catalyst-free degree of graphitization at 2500 DEG C just reaches 71%.This shows that boron all has obvious effect in reduction graphitization temperature and raising degree of graphitization.Complete employing liquid impregnation-charing method does not prepare the correlative study of the preparation method of high-strength light carbon/carbon compound material at present simultaneously.
Summary of the invention
The present invention is intended to overcome prior art deficiency, object is to provide the preparation method of the simple and reproducible high conductive high strength lightweight Carbon fibe polymer matrix composites of a kind of preparation technology, high-strength light carbon/carbon compound material not only high High directional thermal conductivity is prepared by the method, and along staple length direction mechanical property be improved significantly, and possess the advantage of lightweight.
For achieving the above object, the technical solution used in the present invention is: a kind of preparation method of high-strength light carbon-fibre composite, comprises following five steps:
(1) at continuous filament yarn carbon fiber surface coating sizing agent, then under nitrogen protection in 800-1200 DEG C of pyrolysis, to remove the oxygen-containing functional group of carbon fiber surface, expose carbon fiber nude surface, then pretreated continuous filament yarn carbon fiber winding is made the premolding idiosome with height-oriented cone C/C matrix material, adopt the premolding idiosome of this carbon fiber as enhancing skeleton; Wherein, the volume density of the premolding idiosome of described carbon fiber is at 1.0g/cm
3below; Described sizing agent forms by with the epoxy resin emulsion of polyphenylene quinoxaline PPQ, 20-28 part boron modified phenolic resin of parts by weight 10-13 part and 50-63 part;
According to premolding idiosome: silicon carbide powder: mica powder: the mass ratio of wilkinite=2:1:0.8:1, take premolding idiosome respectively, granularity is silicon carbide powder, mica powder, the wilkinite of 10 microns, by each raw material mixing and ball milling, while ball milling, add appropriate water, after ball milling 2h, obtain carbon fiber compound;
(2) carbon fiber compound vacuum impregnation step (1) obtained is solute with boron bakelite resin, dehydrated alcohol is solvent, be mixed with boron bakelite resin-ethanol solution that massfraction is 50%, add subsequently in this boron bakelite resin-ethanol solution the NbCl that mass percent is 0.5% ~ 2%
5powder, obtains containing NbCl after fully dissolving
5soaker solution; Described vacuum impregnation temperature can be 200-250 DEG C;
(3) carry out pressurization charing under nitrogen protection by processing the prepreg obtained through step (2), then flood through step 2 preparation containing NbCl
5soaker solution fill space, carry out chemical vapour deposition CVD afterwards, repeating step (3) 5-10 all after dates make its densification; Wherein, the temperature of described charing is 650-900 DEG C; Described moulding pressure is 10-13MPa;
(4) product that step (3) prepares is carried out greying, then flood, then CVD, make its further densification; CVD technique is that the preform be deposited is placed in the CVD stove of equal heat space in described step (4), and hydrocarbon gas pyrolysis occurs in the porous preform of soaking and sinks carbon, and byproduct gas is diffused out; Wherein, graphitization processing is carried out at 3000-3500 DEG C, and greying internal furnace furnace pressure is at below 20MPa;
(5) carbon/carbon composite product of densification step (4) obtained carries out steam activation; steam activation temperature is 850 ~ 1000 DEG C; water inlet speed is 10 ~ 30ml/min; time is 4-7.5 hour; temperature rise rate is 12-18 DEG C/min; after activation; cool under protection of inert gas; finally obtain in hole, leaving Nb or Nb2O5 high-strength light carbon/carbon compound material carbon/carbon compound material; the tensile strength of described high-strength light carbon/carbon compound material reaches more than 800MPa; thermal conductivity is 500-530W/ (mK), and thermal diffusivity is 4.4cm
2/ s.
Preferably, described sizing agent is with the epoxy resin emulsion of the polyphenylene quinoxaline PPQ of parts by weight 12 parts, 25 parts of boron modified phenolic resins and 58 parts composition.
Chemical vapour deposition in step (3) and step (4) mainly contains isothermal process, pressure gradient flow-route and temperature gradient processes three skill.
Its feature of high-strength light carbon/carbon compound material prepared by the present invention be mainly by the carbon fiber of special pre-treatment technique, control pyrolysis temperature, dipping modified resin, with containing NbCl
5soaker process control the content of RESEARCH OF PYROCARBON, form and density, to obtain the carbon/carbon compound material of higher heat-conductivity, high tensile and lightweight.The carbon/carbon compound material that the inventive method is obtained, has the advantages such as low-friction coefficient, thermal stability excellence, high-strength light.The advantage of the inventive method is that technique is simple, workable, easy to make.
Embodiment
Feature of the present invention and effect is illustrated further below by embodiment.
Embodiment 1:
(1) at continuous filament yarn carbon fiber surface coating sizing agent, then under nitrogen protection in 800 DEG C of pyrolysis, to remove the oxygen-containing functional group of carbon fiber surface, expose carbon fiber nude surface, then pretreated continuous filament yarn carbon fiber winding is made the premolding idiosome with height-oriented cone carbon-fibre composite, adopt the premolding idiosome of this carbon fiber as enhancing skeleton; Wherein, the volume density of the premolding idiosome of described carbon fiber is 0.5g/cm
3; Described sizing agent forms by with the epoxy resin emulsion of the polyphenylene quinoxaline PPQ of parts by weight 10 parts, 20 parts of boron modified phenolic resins and 50 parts;
According to premolding idiosome: silicon carbide powder: mica powder: the mass ratio of wilkinite=2:1:0.8:1, take silicon carbide powder, mica powder, wilkinite that granularity is 10 microns respectively, by each raw material mixing and ball milling, while ball milling, add appropriate water, after ball milling 2h, obtain carbon fiber compound;
(2) carbon fiber compound vacuum impregnation step (1) obtained is solute with boron bakelite resin, dehydrated alcohol is solvent, be mixed with boron bakelite resin-ethanol solution that massfraction is 50%, add subsequently in this boron bakelite resin-ethanol solution the NbCl that mass percent is 0.5% ~ 2%
5powder, obtains containing NbCl after fully dissolving
5soaker solution; Described vacuum impregnation temperature can be 200-250 DEG C;
(3) carry out pressurization charing under nitrogen protection by processing the prepreg obtained through step (2), then flood through step 2 preparation containing NbCl
5soaker solution fill space, carry out chemical vapour deposition CVD afterwards, repeating step (3) 5 all after dates make its densification; Wherein, the temperature of described charing is 650 DEG C; Described moulding pressure is 10MPa;
(4) product that step (3) prepares is carried out greying, then flood, then CVD, make its further densification; CVD technique is that the preform be deposited is placed in the CVD stove of equal heat space in described step (4), and hydrocarbon gas pyrolysis occurs in the porous preform of soaking and sinks carbon, and byproduct gas is diffused out; Wherein, graphitization processing is carried out at 3000 DEG C, and greying internal furnace furnace pressure is at below 20MPa;
(5) carbon/carbon composite product of densification step (4) obtained carries out steam activation; steam activation temperature is 850 DEG C; water inlet speed is 10ml/min; time is 4 hours; temperature rise rate is 12 DEG C/min; after activation; cool under protection of inert gas; finally obtain in hole, leaving Nb or Nb2O5 high-strength light carbon/carbon compound material carbon/carbon compound material; the tensile strength of described high-strength light carbon/carbon compound material reaches more than 1000MPa; thermal conductivity is 500W/ (mK), and thermal diffusivity is 4.4cm
2/ s.
Embodiment 2:
(1) at continuous filament yarn carbon fiber surface coating sizing agent, then under nitrogen protection in 1200 DEG C of pyrolysis, to remove the oxygen-containing functional group of carbon fiber surface, expose carbon fiber nude surface, then pretreated continuous filament yarn carbon fiber winding is made the premolding idiosome with height-oriented cone carbon-fibre composite, adopt the premolding idiosome of this carbon fiber as enhancing skeleton; Wherein, the volume density of the premolding idiosome of described carbon fiber is 0.4g/cm
3; Described sizing agent forms by with the epoxy resin emulsion of the polyphenylene quinoxaline PPQ of parts by weight 13 parts, 28 parts of boron modified phenolic resins and 63 parts;
According to premolding idiosome: silicon carbide powder: mica powder: the mass ratio of wilkinite=2:1:0.8:1, take silicon carbide powder, mica powder, wilkinite that granularity is 10 microns respectively, by each raw material mixing and ball milling, while ball milling, add appropriate water, after ball milling 2h, obtain carbon fiber compound;
(2) carbon fiber compound vacuum impregnation step (1) obtained is solute with boron bakelite resin, dehydrated alcohol is solvent, be mixed with boron bakelite resin-ethanol solution that massfraction is 50%, add subsequently in this boron bakelite resin-ethanol solution the NbCl that mass percent is 0.5% ~ 2%
5powder, obtains containing NbCl after fully dissolving
5soaker solution; Described vacuum impregnation temperature can be 200-250 DEG C;
(3) carry out pressurization charing under nitrogen protection by processing the prepreg obtained through step (2), then flood through step 2 preparation containing NbCl
5soaker solution fill space, carry out chemical vapour deposition CVD afterwards, repeating step (3) 10 all after dates make its densification; Wherein, the temperature of described charing is 900 DEG C; Described moulding pressure is 13MPa;
(4) product that step (3) prepares is carried out greying, then flood, then CVD, make its further densification; CVD technique is that the preform be deposited is placed in the CVD stove of equal heat space in described step (4), and hydrocarbon gas pyrolysis occurs in the porous preform of soaking and sinks carbon, and byproduct gas is diffused out; Wherein, graphitization processing is carried out at 3500 DEG C, and greying internal furnace furnace pressure is at below 20MPa;
(5) carbon/carbon composite product of densification step (4) obtained carries out steam activation; steam activation temperature is 1000 DEG C; water inlet speed is 30ml/min; time is 7.5 hours; temperature rise rate is 18 DEG C/min; after activation; cool under protection of inert gas; finally obtain in hole, leaving Nb or Nb2O5 high-strength light carbon/carbon compound material carbon/carbon compound material; the tensile strength of described high-strength light carbon/carbon compound material reaches 113000MPa; thermal conductivity is 530W/ (mK), and thermal diffusivity is 4.4cm
2/ s.
To those skilled in the art, under this patent design and specific embodiment enlightenment, some distortion that can directly derive from this patent disclosure and general knowledge or associate, those of ordinary skill in the art will recognize also can adopt additive method, or in prior art, commonly use substituting of known technology, and the equivalence of feature changes or modifies, mutual various combination between feature, the such as change of Carbon fibe K number, the change of concrete technology parameter in usual scope, etc. unsubstantiality change, can be employed equally, this patent representation function and effect can be realized, expansion of illustrating no longer is one by one described in detail, all belong to this patent protection domain.
Claims (3)
1. a preparation method for high-strength light carbon-fibre composite, is characterized in that: comprise following five steps:
(1) at continuous filament yarn carbon fiber surface coating sizing agent, then under nitrogen protection in 800-1200 DEG C of pyrolysis, to remove the oxygen-containing functional group of carbon fiber surface, expose carbon fiber nude surface, then pretreated continuous filament yarn carbon fiber winding is made the premolding idiosome with height-oriented cone carbon-fibre composite, adopt the premolding idiosome of this carbon fiber as enhancing skeleton; Wherein, the volume density of the premolding idiosome of described carbon fiber is at 1.0g/cm
3below; Described sizing agent forms by with the epoxy resin emulsion of polyphenylene quinoxaline PPQ, 20-28 part boron modified phenolic resin of parts by weight 10-13 part and 50-63 part;
According to premolding idiosome: silicon carbide powder: mica powder: the mass ratio of wilkinite=2:1:0.8:1, take premolding idiosome respectively, granularity is silicon carbide powder, mica powder, the wilkinite of 10 microns, by each raw material mixing and ball milling, while ball milling, add appropriate water, after ball milling 2h, obtain carbon fiber compound;
(2) carbon fiber compound vacuum impregnation step (1) obtained is solute with boron bakelite resin, dehydrated alcohol is solvent, be mixed with boron bakelite resin-ethanol solution that massfraction is 50%, add subsequently in this boron bakelite resin-ethanol solution the NbCl that mass percent is 0.5% ~ 2%
5powder, obtains containing NbCl after fully dissolving
5soaker solution; Described vacuum impregnation temperature can be 200-250 DEG C;
(3) carry out pressurization charing under nitrogen protection by processing the prepreg obtained through step (2), then flood through step 2 preparation containing NbCl
5soaker solution fill space, carry out chemical vapour deposition CVD afterwards, repeat above-mentioned 5-10 all after dates and make its densification; The temperature of wherein said charing is 650-900 DEG C; Described moulding pressure is 10-13MPa;
(4) product that step (3) prepares is carried out greying, then flood, then CVD, make its further densification;
CVD technique is that the preform be deposited is placed in the CVD stove of equal heat space in described step (4), and hydrocarbon gas pyrolysis occurs in the porous preform of soaking and sinks carbon, and byproduct gas is diffused out; Wherein graphitization processing is carried out at 3000-3500 DEG C, and greying internal furnace furnace pressure is at below 20MPa;
(5) carbon/carbon composite product of densification step (4) obtained carries out steam activation; steam activation temperature is 850 ~ 1000 DEG C; water inlet speed is 10 ~ 30ml/min; time is 4-7.5 hour; temperature rise rate is 12-18 DEG C/min; after activation, cool under protection of inert gas, finally obtain leaving Nb or Nb in hole
2o
5high-strength light carbon/carbon compound material carbon/carbon compound material, the tensile strength of described high-strength light carbon/carbon compound material reaches more than 800MPa, and thermal conductivity is 500-530W/ (mK), and thermal diffusivity is 4.4cm
2/ s.
2. the preparation method of high-strength light carbon-fibre composite according to claim 1, is characterized in that: described sizing agent is with compositions such as the epoxy resin emulsions of the polyphenylene quinoxaline PPQ of parts by weight 12 parts, 25 parts of boron modified phenolic resins and 58 parts.
3. the preparation method of high-strength light carbon-fibre composite according to claim 1, is characterized in that: the chemical vapour deposition in step (3) and step (4) mainly contains isothermal process, pressure gradient flow-route and temperature gradient processes three skill.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105924199A (en) * | 2016-04-27 | 2016-09-07 | 航天材料及工艺研究所 | Rapid preparation method of low-cost carbon/carbon composite material |
| TWI750558B (en) * | 2018-12-25 | 2021-12-21 | 日商三菱化學股份有限公司 | Sizing agent, sizing agent-attached carbon fiber and manufacturing method thereof, water dispersion of sizing agent, prepreg and manufacturing method thereof, and manufacturing method of carbon fiber reinforced composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109630576B (en) * | 2018-12-14 | 2019-08-27 | 杭州科铂科技有限公司 | A kind of carbon fiber high temperature resistance and high strength brake block and preparation method thereof |
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| CN105924199A (en) * | 2016-04-27 | 2016-09-07 | 航天材料及工艺研究所 | Rapid preparation method of low-cost carbon/carbon composite material |
| CN105924199B (en) * | 2016-04-27 | 2019-02-19 | 航天材料及工艺研究所 | A kind of fast preparation method of low cost carbon/carbon compound material |
| TWI750558B (en) * | 2018-12-25 | 2021-12-21 | 日商三菱化學股份有限公司 | Sizing agent, sizing agent-attached carbon fiber and manufacturing method thereof, water dispersion of sizing agent, prepreg and manufacturing method thereof, and manufacturing method of carbon fiber reinforced composite material |
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