CN106671451A - Fiber reinforced composite as well as preparing method and application thereof - Google Patents
Fiber reinforced composite as well as preparing method and application thereof Download PDFInfo
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- CN106671451A CN106671451A CN201610404278.4A CN201610404278A CN106671451A CN 106671451 A CN106671451 A CN 106671451A CN 201610404278 A CN201610404278 A CN 201610404278A CN 106671451 A CN106671451 A CN 106671451A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
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Abstract
The invention discloses a fiber reinforced composite as well as a preparing method and an application thereof. The preparing method comprises: providing a fiber product, wherein the fiber product comprises fiber fabric and resin combined with the fiber fabric, and the resin comprises thermosetting and/or thermoplastic resin; arranging at least one fiber product and at least one carbon nanotube film layer in an overlapping manner so as to from a composite premix; and placing the composite premix in a vacuum molding device, then pumping vacuum, charging the at least one carbon nanotube film in the composite premix with current, enabling the at least one carbon nanotube film in the composite premix to produce heat, and accordingly heating and curing the composite premix so as to form the fiber reinforced composite. By the technology of the invention, energy consumption in the preparing process of the fiber reinforced composite can be effectively reduced, the energy converting efficiency is increased, and the molding cycle is shortened; and at the same time, the fiber reinforced composite has great electricity and heat conducting properties and wide application prospects.
Description
Technical field
The present invention relates to a kind of fibre reinforced composites, particularly a kind of carbon fibre reinforced composite, its preparation method and should
With belonging to material science.
Background technology
There is fibre reinforced composites little density, high specific strength/specific stiffness, corrosion-resistant, performance can design, can integrated molding,
The advantages of good fatigue resistance, it is widely used for as structural material and anti-yaw damper material, in Aero-Space, the energy, vapour
There is application widely in the fields such as car, physical fitness equipment.
Currently, the most frequently used fibre reinforced composites preparation method is to utilize autoclave molding, will fibre resin preimpregnation type
Certain size is cut into, layer paving is carried out in some way, composite preform is prepared, afterwards by composite preform
It is placed in mould, then mould is put in autoclave, according to setting means heating pressurization fibre reinforced composites is prepared.Heat
Pressure jug forming technology has the advantages that resin content is equal as pressure and uniformity of temperature profile in tank body, the product porosity for obtaining are low
It is even, it is ensured that the steady quality of product, mechanical property reliability.However, in actual use, with autoclave molding side
Formula prepare composite there are problems that it is many, for example：Autoclave molding energy consumption is very big, and energy utilization rate is very low；Hot pressing
The jug forming cycle is very long, and utilization rate of equipment and installations is low；For large-scale autoclave, pressure and temperature control is more difficult, and programming rate delays
Slowly.The presence of these defects all considerably increases the cost of composite element.Postscript, the interlayer performance of autoclave molding product
Difference, causes this based article that the destruction such as cracking is also easy to produce when the impact of the disasters such as hail is subjected to.Additionally, autoclave molding product is also deposited
The problems such as electrical and thermal conductivity performance difference, its range of application is which also limits.For example, generally need in aircraft skin at present to use
Increasing its electrical and thermal conductivity, to tackle the vile weathers such as ice and snow and thunder and lightning, for example, energization heat production carries out deicing to miniature copper mesh,
And the impact of high current is evacuated when thunder and lightning is met with, but be both difficult to meet such demand using autoclave molding product, and
The introducing of miniature copper mesh undoubtedly can also increase the weight of aircraft so as to consume more fuel.
On the other hand, CNT electric-heating technology is used as a kind of novel non-autoclave technology, it is most likely that drive composite
The development of forming technique.In current research, generally adopt and carbon nanotube dust is dispersed in polymeric matrix, then to poly-
Compound matrix two end electrodes are powered and solidify composite to produce heat, and obtaining strengthens composite.But this mode needs
CNT scattering problem is solved, scattering problem not only affects Electrothermal Properties, has an effect on the mechanical property of composite product.This
Outward, in this fashion, composite solidification process is extremely sensitive to content of carbon nanotubes, thus also needs to content of carbon nanotubes
Accuracy controlling is carried out, extremely numerous and diverse difficulty is operated.
The content of the invention
Present invention is primarily targeted at a kind of fibre reinforced composites, its preparation method and application are provided, to overcome existing skill
Deficiency in art.
To realize aforementioned invention purpose, the technical solution used in the present invention includes：
The embodiment of the present application provides a kind of preparation method of fibre reinforced composites, and it includes：
Fibre is provided, the fibre includes fabric and the resin being combined with the fabric, the resin bag
Include thermosetting resin and/or thermoplastic resin；
Fibre at least described in one is stacked with an at least carbon nano-tube film, composite preform is formed；
The composite preform is inserted into vacuum forming device, afterwards evacuation, then in the composite preform
At least a carbon nano-tube film is passed through electric current, at least carbon nano-tube film heating is made, so that the composite preform
It is heat cured for and forms the fibre reinforced composites.
The embodiment of the present application additionally provides the fibre reinforced composites prepared by methods described.
The embodiment of the present application provides the purposes of the fibre reinforced composites, such as purposes in deicing lightning protection.
The embodiment of the present application provides a kind of device, and it includes described fibre reinforced composites.
It is compared with prior art, of the invention by the way that the fibre with resin and carbon nano-tube film are compounded to form into composite,
And apply electric current using to carbon nano-tube film, it is allowed to be rapidly heated and produce heat, and directly act on composite and make multiple
Condensation material solidifies, not only less energy consumption, and capacity usage ratio is high, and after the completion of solidifying, carbon nano-tube film is also used as being combined
The ingredient of material and improve the electrical and thermal conductivity of composite so that obtaining composite has excellent conductive exothermal performance,
With wide application prospect, for example, can be used for deicing lightning protection.
Description of the drawings
Fig. 1 is floating catalytic chemical vapor carbon deposition nano-tube film electric heating property curve chart in a typical embodiments of the invention；
Fig. 2 is fibre reinforced composites preparation process flow chart among a typical embodiments of the invention；
The structural representation of Fig. 3-be vacuum-bag process device adopted in case study on implementation of the present invention；
Fig. 4 is a kind of structural representation of fibrous composite sample in case study on implementation of the present invention.
Specific embodiment
As previously shown, in view of many defects of the prior art, inventor is carried through studying for a long period of time and putting into practice in a large number
Go out technical scheme, will be illustrated as follows.
The one side of the embodiment of the present invention provides a kind of preparation method of fibre reinforced composites, and it includes：
Fibre is provided, the fibre includes fabric and the resin being combined with the fabric, the resin bag
Include thermosetting resin and/or thermoplastic resin；
Fibre at least described in one is stacked with an at least carbon nano-tube film, composite preform is formed；
The composite preform is inserted into vacuum forming device, afterwards evacuation, then in the composite preform
At least a carbon nano-tube film is passed through electric current, at least carbon nano-tube film heating is made, so that the composite preform
It is heat cured for and forms the fibre reinforced composites.
Further, the carbon nano-tube film includes preparing the CNT to be formed using chemical vapour deposition technique or physical method
Thin film.Wherein, described physical method can include Filtration, suction method, liquid phase deposition etc., and not limited to this.
For example, the carbon nano-tube film include CNT Buckie paper, can be made by spinning array membrane method or floating catalyst system
Any one in carbon nano-tube film or two or more combinations.Preferably, the carbon nano-tube film can be urged using floating
Change chemical vapor carbon deposition nano-tube film.
Further, the thickness of the carbon nano-tube film for example can also may be used preferably in more than 50nm in 50nm~1mm
In more than 1mm, such as can also being 3~8mm.
In some more preferred embodiment, described preparation method may also include：From Compression and Expansion process, it is annealing treatment
Reason, high temperature graphitization process, resin infiltration, metal spraying, chemistry or laser ablation process in any one mode or two kinds
Compound mode above is processed carbon nano-tube film and is improved its performance, afterwards by the carbon nano-tube film and fiber system
Product are folded and arrange and form composite preform.
In some embodiments, the fibre is selected from surface/or the internal fabric with resin.
In some more specific embodiment, the preparation method of the fibre includes：Fabric is filled in resin
Sub-dip is steeped or in fabric surface coated with resins, so as to obtain the fibre.
In some more specific embodiment, the preparation method of the fibre includes：Resin is dissolved in into volatile solvent
Middle formation resin solution, and take out after fabric is fully soaked in resin solution or set in fabric surface coating
Lipoprotein solution, removes afterwards volatile solvent, so as to obtain the fibre.
In some more specifically embodiment, the preparation method of the fibre includes：
The resin relatively low for viscosity, directly using either manually or mechanically method, by resin brush, in fabric, (such as preferable carbon is fine
Wei Bu) surface or it is sprayed on fabric surface or directly fabric is immersed in resin；Take out afterwards, be obtained with tree
The fabric of fat；
The resin higher for viscosity, is first diluted using suitable volatile organic solvent to resin, by the resin after dilution
Dilution is immersed in using either manually or mechanically method brush in fabric surface or spray fiber fabric face or directly by fabric
In resin, after volatile organic solvent volatilizees completely, the fabric with resin is obtained.
Further, the fabric includes any one in plain weave cloth, twill weave cloth, unidirectional woven cloth or two
Plant the combination of the above, but not limited to this.
Further, the fiber for adopting in the fabric is included but is not limited in carbon fiber, glass fibre and aramid fiber
Any one or two or more combinations, preferably are selected from carbon fiber.
Further, the resin includes epoxy resin, phenolic resin, unsaturated polyester (UP), BMI, polyimides
Deng any one in the thermoplastic resins such as thermosetting resin and polyurethane or two or more combinations, but not limited to this.
It is more highly preferred to, it is fine that fibre used is selected from carbon fiber product, particularly epoxy resin preimpregnation cloth or the carbon with resin
Wei Bu.
In some embodiments, described preparation method includes：An at least carbon nano-tube film is folded and is located at least two-layer fiber
Between product, so as to form composite preform.
In some embodiments, described preparation method includes：Will at least two-layer fibre stacking after, then this at least two
Fold on layer fibre and set an at least carbon nano-tube film, so as to form composite preform.
In some more specific embodiment, the preparation method can include：If by dried layer fibre at a certain angle
Layer paving is carried out, between any two-layer fibre or any one surface in composite preform surface or some surface layers spread carbon nanometer
Pipe thin film.
In some more specific embodiment, described preparation method includes：It is unidirectionally pre- that the fibre is selected from resin
Leaching cloth, and in the composite preform, the orientation of fiber and fiber in another fibre in arbitrary fibre
Orientation into -90 °~+90 ° angles.
In some embodiments, described preparation method includes：An at least carbon nano-tube film back to both sides difference
A connection at least electrode, and the electrode is connected with power supply, so as to be passed through electric current in this at least a carbon nano-tube film.
In some more specific embodiment, the preparation method includes：Bonded composite performance design demand, by carbon
Nano-tube film is cut into certain size, two ends (or back to both sides) connection electrode (preferably metal electrode), by fiber
Product is cut into suitably sized, and at an angle layer paving, selects suitable layer paving that carbon nano-tube film layer paving is entered.
In some more specifically embodiment, described preparation method includes：By the fibre for cutting, (for example carbon is fine
The unidirectional prepreg cloth of dimension epoxy resin) enter successively by certain angle (angle formed between the fiber orientation directions in each prepreg cloth)
Row stacking, prepares composite preform, and aforementioned angular is arbitrarily angled, such as preferably for 0 °, 15 °, 30 °, 45 ° and
90 °, especially preferably 0 ° or 90 °.
In some more specifically embodiment, described preparation method includes：In composite preform, one layer is selected
If or dried layer fibre (the unidirectional prepreg cloth of such as carbon fiber epoxy) surface, by carbon nano-tube film layer paving enter, nationality
To improve the symmetry of the uniformity be heated of composite and structure and meet material property demand.
In some embodiments, the electrode may be selected from metal electrode, for example, can adopt Copper Foil, aluminium foil or native silver, preferably
Using Copper Foil.
In some embodiments, at least through bonding or mechanical bond (example between the metal forming and the carbon nano-tube film
Press combination such as mechanical pressure) mode is electrically connected with.
In some more specifically embodiment, described preparation method includes：By metal forming (such as preferred Copper Foil) cutting
Growth bar shaped, using conductive silver glue or mechanical pressure or containing conductive adhered layer Copper Foil by Copper Foil directly in conjunction with or be bonded in CNT
Thin film two ends, to ensure electrode and the good contact of carbon nano-tube film.
Further, the vacuum forming device is preferably vacuum-bag process device, and not limited to this.
In some more specific embodiment, described preparation method includes：Composite preform is inserted into suitable mould
In tool, mould is placed in supporting mass (such as safety glass) surface for being pre-coated with releasing agent, it is using fluid sealant etc. that mould is close
It is enclosed in vacuum-bag process device, briquetting pressure is persistently applied to vacuum-bag process device evacuation by devices such as external vacuum pumps,
And be connected composite preform with power supply, by regulating and controlling to electric current, voltage etc., make the heat production speed of carbon nano-tube film
The radiating rate of degree and composite reaches dynamic equilibrium, and then resin therein is stablized in certain temperature, resin Jing
Going through viscosity reduction, wetting fibre surface and reaching rapid rising of gel point, viscosity carries out solidification two stages of crosslinking, prepares institute
State fibre reinforced composites.
Refer to shown in Fig. 1, in an exemplary embodiments of the present invention, the preparation method can include：
(1) the fiber-resin matrix material needed for preparing, more preferably preferred carbon fiber epoxy matrix, carbon fiber epoxy
The unidirectional prepreg cloth of resin；
(2) carbon nano-tube film needed for preparing, preferably uses floating catalytic chemical vapor carbon deposition nano-tube film；
(3) carbon fibre resin matrix material and carbon nano-tube film are carried out into cutting layer paving, prepares composite preform；
(4) composite preform is put in vacuum-bag process device, evacuation applies briquetting pressure, to carbon nano-tube film
It is powered, produces heat curing molding composite.
The other side of the embodiment of the present invention additionally provides the fibre reinforced composites prepared by aforementioned any one method.
The other side of the embodiment of the present invention additionally provides purposes of the fibre reinforced composites in deicing lightning protection.
The other side of the embodiment of the present invention additionally provides a kind of device, and it includes described fibre reinforced composites.It is described
Device can be aircraft eyelid covering etc., or aircraft or other machinery, electronics comprising the fibre reinforced composites
Device etc..
The present invention, as heating element heater, is carried out using the carbon nano-tube film in the precursor of fibre reinforced composites to composite
Solidify and fibre reinforced composites are obtained, the technique has the advantages that energy consumption is little, capacity usage ratio is high, short molding cycle, and
Obtained product has good conductive heat conductivity, with wide application prospect.
Following examples will be further explained explanation to technical scheme.
Embodiment 1：A kind of fiber-resin composite preparation method that the present embodiment is related to specifically includes following steps：
1) from the unidirectional prepreg cloth of T700,12K carbon fiber epoxy (be purchased from Yixing Heng Ya carbon fibers Science and Technology Ltd.,
Epoxy resin content is 60%) to be cut into 5cm × 4cm, wherein, carbon fiber is along 5cm long side directions.
2) (Jie Di nanosecond science and technology company limited is purchased from, is received using ethanol from floating catalytic chemical vapor carbon deposition nano-tube film
Contracting densification, thickness is 3-8 μm, and pure nano-carbon tube film electric heating property refers to Fig. 2), 5cm × 4cm is cut into, wherein, carbon
Nano-tube film differently- oriented directivity is along 5cm long side directions.Cutting 5mm width Copper Foil is pasted using conductive silver glue and is fixed as electrode
In carbon nano-tube film two ends, perpendicular to CNT differently- oriented directivity, parallel to 4cm short side directions；
3) the unidirectional laying of the unidirectional prepreg cloth of 16 layers of carbon fiber epoxy is taken, intermediate layer (between the 8th layer and the 9th layer) lays
Carbon nano-tube film with electrode, Teflon film is laid as protective layer in plane composite preform upper and lower ends；
4) refering to Fig. 3 and Fig. 4, on the safety glass of horizontal positioned advance smearing release agent to facilitate the sample that comes off, by true
Sky imports sealing joint strip, and the strict glue of composite preform is enclosed on safety glass, and the continuous evacuation of vacuum pump applies molding pressure
Power, carbon nano-tube film connects DC current regulator power supply, passes to 4V voltages, and 150 DEG C are reached in sample surface temperature 10min,
It is stable at 180 DEG C after 20 min.Terminate to be powered after energization 2h, after sample is cooled to room temperature with safety glass sample taken out,
Burr are wiped out, the complete composite sample in surface is obtained.
Embodiment 2：A kind of fiber-resin composite preparation method that the present embodiment is related to specifically includes following steps：
1) (Yixing Heng Ya carbon fibers Science and Technology Ltd., epoxy resin are purchased from from T700,12K unidirectional carbon prepreg cloth
Content is 60%) to be cut into 5cm × 5cm.
2) (Jie Di nanosecond science and technology company limited is purchased from, is received using ethanol from floating catalytic chemical vapor carbon deposition nano-tube film
Contracting densification, thickness is 3-8 μm), laser ablation process is carried out, processing method is：Carbon nano-tube film is laid in into load
On thing platform, adjust laser and be allowed to be focused into a little on carbon nano-tube film surface, the laser being focused into a little can be thin in CNT
Circular perforations are etched on film, laser intensity is controlled by adjusting electric current, Circularhole diameter is 150 μm, minimum center of circular hole
Spacing is 150 μm, and circular hole is in regular arrangement, and center of circle strict rule on warp-wise and broadwise is arranged.During adjacent round dot is set
In the heart away from for 200 μm, laser controlling electric current is 10A, and to carbon nano-tube film laser ablation is carried out, and the carbon of laser ablation is received
Mitron thin film is cut into 5cm × 5cm rectangles.Copper Foil, using conductive silver glue, is pasted solid by cutting 5mm width Copper Foil as electrode
Due to carbon nano-tube film two ends；
3) take the unidirectional laying of the unidirectional prepreg cloth of 16 layers of carbon fiber epoxy, the 4th layer with the 5th layer, the 8th layer with the 9th layer it
Between, one layer of CNT etching film by laser containing copper foil electrode is respectively laid between the 12nd layer and the 13rd layer, each layer film is in
Parallel relationship, Teflon film is laid as protective layer in plane composite preform upper and lower ends；
4) refering to Fig. 3 and Fig. 4, on the safety glass of horizontal positioned advance smearing release agent to facilitate the sample that comes off, by true
Sky imports sealing joint strip, and the strict glue of composite preform is enclosed on safety glass, and the continuous evacuation of vacuum pump applies molding pressure
Power, carbon nano-tube film connects DC current regulator power supply, leads to 4V voltages, stable at 143 DEG C in sample surface temperature 18min.
Terminate to be powered after energization 2h, after sample is cooled to room temperature with safety glass sample is taken out, wipe out burr, surface is obtained complete
Composite sample.
Embodiment 3：A kind of fiber-resin composite preparation method that the present embodiment is related to specifically includes following steps：
1) (Yixing Heng Ya carbon fibers Science and Technology Ltd., epoxy resin are purchased from from T700,12K unidirectional carbon prepreg cloth
Content is 60%) to be cut into 10cm × 10cm.
2) (Jie Di nanosecond science and technology company limited is purchased from, is received using ethanol from floating catalytic chemical vapor carbon deposition nano-tube film
Contracting densification, thickness is 3-8 μm), it is cut into 10cm × 14cm rectangles.Using Copper Foil as electrode, copper foil electrode size is
20cm × 2cm, thickness is 0.1mm.Copper foil electrode is pasted on into carbon nano-tube film two ends using conductive silver glue, perpendicular to rectangle
CNT long side direction.
3) 16 layers of 10cm × 10cm carbon fibre initial rinse fabrics orthogonal laying [0/90 °] successively is taken4s, two ends lay politef protection
Film, is laid in step 2) on made carbon nano-tube film.
4) refering to Fig. 3 and Fig. 4, on the safety glass of horizontal positioned advance smearing release agent to facilitate the sample that comes off, by true
Sky imports sealing joint strip, and the strict glue of composite preform is enclosed on safety glass, and it is steady that carbon nano-tube film connects DC voltage-stabilizing
Stream power supply, is passed through 9V voltages, and sample surface temperature gradually rises up to 110 DEG C.Voltage is improved to 11V after constant temperature 1h, while
The continuous evacuation of vacuum pump is begun through, sample temperature is increased to 143 DEG C, after constant temperature 1h, terminate to be powered, treat sample with tempering
Glass is cooled to after room temperature and takes out sample, wipes out burr, and the complete composite sample in surface is obtained.
Embodiment 4：A kind of fiber-resin composite preparation method that the present embodiment is related to specifically includes following steps：
1) from the bisphenol f type epoxy resins of EPOLAM 5015 (number-average molecular weight≤700) and EPOLAM5014 firming agent,
With 3:1 ratio mixing and stirring, resin is placed in acetone and is diluted, and resin quality fraction is 5%, prepares epoxy resin dilute
Release liquid.
2) CNT floating thin film is placed in epoxy resin diluent and soaks 1h, taken out in vacuum drying oven 25 DEG C and fully remove
After removing acetone volatile matters, successively with polytetrafluoroethylene film, Teflon film enveloped carbon nanometer tube thin film, temperature be 70 DEG C,
Pressure is hot pressing 1h under the conditions of 4MPa.
3) the above-mentioned carbon nano-tube film for infiltrating cured through resin is cut into into 14cm × 10cm rectangles, 2cm width Copper Foils
Electrode hot pressing under 4MPa pressure enters carbon nano-tube film.
4) the above-mentioned carbon nano-tube film layer containing copper foil electrode is taped against in 8 layers of 10cm × 10cm epoxy prepregs, is prepared
Go out [0/90 °]2SComposite preform, evacuation is carried out to precast body and is processed to exclude bubble.
5) refering to Fig. 3 and Fig. 4, on the safety glass for scribbling releasing agent, sealing joint strip is imported by vacuum, by composite
The strict glue of precast body is enclosed on safety glass, and carbon nano-tube film connects DC current regulator power supply, is passed through 9V voltages, sample
Surface temperature gradually rises up to 105 DEG C.Voltage is improved to 11V after constant temperature 1h, is started simultaneously at by the continuous evacuation of vacuum pump,
Sample temperature is increased to 137 DEG C, after constant temperature 1h, terminates to be powered, and after sample is cooled to room temperature with safety glass sample is taken out,
Burr are wiped out, the complete composite sample in surface is obtained.
Table 1 is the fiber resin composite material sample (electrical heating sample) that in embodiment 4 prepared by carbon nano-tube film electrical heating solidification
Partial properties compare, wherein, hot press sample is comparative sample, composite preform structure used and carbon nano-tube film electricity
Heating composite preform is identical, 105 DEG C, do not apply constant temperature 1h under conditions of pressure, at 137 DEG C, about 0.1MPa
Under pressure after constant temperature 1h, treat that sample is cooled to room temperature with mould, take out sample, wipe out burr, the complete composite wood in surface is obtained
Material sample.
The measurement of glass transition temperature Tg tests (DMA) using dynamic mechanical, using three-point bending pattern, tests
The standard that journey is followed is ASTM D4065-06, using loss moduluses peak value corresponding temperature as glass transition temperature Tg.Gu
The measurement of change degree is adopted checks and verify scanning calorimeter (DSC), by the calculating of peak area.The measurement of bending moduluses and bending strength is adopted
Obtained with universal testing machine beam mode, the standard that test process is followed is ASTM D790-10.Thermal conductivity measurement is adopted
Laser heat conducting instrument is measured.
From data in table 1, using partial properties index and the conventional thermocompression press proof of electrical heating sample obtained in the inventive method
Condition ratio remains basically stable, or even part index number is slightly above hot press sample.However, the inventive method has, energy consumption is low, molding is all
Phase is short, the simple advantage of Preparation equipment, with great application prospect and considerable economic benefit.
The carbon nano-tube film electrical heating of table 1 solidifies composite sample and hot press solidified sample partial properties compare
It should be appreciated that the above is only illustrating for the feasibility embodiment for the present invention, they simultaneously are not used to limit
Protection scope of the present invention, it is noted that for those skilled in the art, without departing from the principle of the invention
On the premise of some improvements and modifications should be included within protection scope of the present invention.
Claims (14)
1. a kind of preparation method of fibre reinforced composites, it is characterised in that include：
Fibre is provided, the fibre includes fabric and the resin being combined with the fabric, the resin bag
Include thermosetting resin and/or thermoplastic resin；
Fibre at least described in one is stacked with an at least carbon nano-tube film, composite preform is formed；
The composite preform is inserted into vacuum forming device, afterwards evacuation, then in the composite preform
At least a carbon nano-tube film is passed through electric current, at least carbon nano-tube film heating is made, so that the composite preform
It is heat cured for and forms the fibre reinforced composites.
2. preparation method according to claim 1, it is characterised in that：The carbon nano-tube film includes adopting chemical gaseous phase
Sedimentation or physical method prepare the carbon nano-tube film to be formed.
3. preparation method according to claim 2, it is characterised in that：The carbon nano-tube film includes CNT Buckie
Paper, any one or two or more combinations that can be in spinning array membrane method or carbon nano-tube film made by floating catalyst system,
It preferably is selected from carbon nano-tube film made by floating catalyst system.
4. preparation method according to claim 1, it is characterised in that also include：Processed from Compression and Expansion, made annealing treatment,
Any one mode or two or more in the process of high temperature graphitization process, resin infiltration, metal spraying, chemistry or laser ablation
Compound mode carbon nano-tube film is processed, afterwards folded setting of the carbon nano-tube film and fibre is formed into multiple
Condensation material precast body.
5. preparation method according to claim 1, it is characterised in that：The fibre is selected from surface/or internal with tree
The fabric of fat.
6. preparation method according to claim 5, it is characterised in that the preparation method of the fibre includes：
Fabric is fully soaked or in fabric surface coated with resins in resin, so as to obtain the fibre；
Or, resin is dissolved in volatile solvent and forms resin solution, and fabric is fully soaked in resin solution
Take out afterwards or in fabric surface coated with resins solution, volatile solvent is removed afterwards, so as to obtain the fibre.
7. the preparation method according to any one of claim 1-6, it is characterised in that：The fabric is compiled including plain weave
Weave cotton cloth, any one or two or more combinations in twill weave cloth, unidirectional woven cloth；And/or, adopt in the fabric
Fiber includes any one in carbon fiber, glass fibre and aramid fiber or two or more combinations, preferably is selected from carbon fiber；
And/or, the resin includes epoxy resin, phenolic resin, unsaturated polyester (UP), BMI, polyimides and polyurethane
In any one or two or more combinations.
8. preparation method according to claim 1, it is characterised in that include：By an at least carbon nano-tube film it is folded be located to
Between few two-layer fibre, so as to form composite preform；Or, will at least two-layer fibre stacking after, then
This is folded at least on two-layer fibre and sets an at least carbon nano-tube film, so as to form composite preform.
9. preparation method according to claim 1, it is characterised in that：The fibre is selected from the unidirectional prepreg cloth of resin,
And in the composite preform, the arrangement of the orientation of fiber and fiber in another fibre in arbitrary fibre
Direction is into -90 °~+90 ° angles.
10. preparation method according to claim 1, it is characterised in that：The vacuum forming device includes vacuum-bag process
Device.
11. preparation methoies according to claim 1, it is characterised in that include：In the opposite of an at least carbon nano-tube film
To both sides be respectively connecting to a few electrode, and the electrode is connected with power supply, so as in this at least a carbon nano-tube film
It is passed through electric current；Preferably, the electrode adopts metal electrode, particularly preferably from metal forming, the metal forming and the carbon nanometer
It is electrically connected with least through bonding or mechanical coupling fashion between pipe thin film；It is further preferred that the metal forming is Copper Foil, aluminum
Paper tinsel or native silver, particularly preferably using Copper Foil.
Fibre reinforced composites prepared by 12. methods by any one of claim 1-11.
Purposes of the fibre reinforced composites in deicing lightning protection described in 13. claim 12.
14. a kind of devices, it is characterised in that including the fibre reinforced composites described in claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404278.4A CN106671451B (en) | 2016-06-08 | 2016-06-08 | Fibre reinforced composites, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404278.4A CN106671451B (en) | 2016-06-08 | 2016-06-08 | Fibre reinforced composites, preparation method and application |
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| CN107538844A (en) * | 2017-09-29 | 2018-01-05 | 北京航空航天大学 | A kind of carbon fiber carbon nano tube hybrid composite and preparation method thereof |
| CN108045039A (en) * | 2017-12-06 | 2018-05-18 | 上海复合材料科技有限公司 | A kind of structure high-damping carbon fibre composite and preparation method thereof |
| CN109421282A (en) * | 2017-08-25 | 2019-03-05 | 空中客车作业有限公司 | With the method and apparatus of thermoplastic outer welding thermosetting property object and other object |
| CN109913185A (en) * | 2019-03-11 | 2019-06-21 | 中国科学院合肥物质科学研究院 | A kind of multilayered structure heat-conductive composite material and preparation method thereof containing heat conducting film |
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| CN110337234A (en) * | 2019-07-09 | 2019-10-15 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of wet-heat resisting electromagnetic wave shield film, composite material, preparation method and application |
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| WO2021051486A1 (en) * | 2019-09-20 | 2021-03-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Carbon nanotube thin film/composite material forming method and manufactured lightning protection structure |
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| CN109913185A (en) * | 2019-03-11 | 2019-06-21 | 中国科学院合肥物质科学研究院 | A kind of multilayered structure heat-conductive composite material and preparation method thereof containing heat conducting film |
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| WO2021051486A1 (en) * | 2019-09-20 | 2021-03-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Carbon nanotube thin film/composite material forming method and manufactured lightning protection structure |
| CN113696513A (en) * | 2021-09-03 | 2021-11-26 | 上海交通大学 | Carbon nano material-based non-autoclave electroformed composite material method |
| CN114571747A (en) * | 2022-03-02 | 2022-06-03 | 哈尔滨工业大学（威海） | Forming method of pulse current curing carbon fiber composite material |
| CN114571747B (en) * | 2022-03-02 | 2024-01-16 | 哈尔滨工业大学（威海） | Forming method of pulse current solidified carbon fiber composite material |
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