CN108219375A - Surface modified carbon fiber prepreg material based on graphene oxide and preparation method thereof - Google Patents
Surface modified carbon fiber prepreg material based on graphene oxide and preparation method thereof Download PDFInfo
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- CN108219375A CN108219375A CN201711496782.2A CN201711496782A CN108219375A CN 108219375 A CN108219375 A CN 108219375A CN 201711496782 A CN201711496782 A CN 201711496782A CN 108219375 A CN108219375 A CN 108219375A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
Abstract
Surface modified carbon fiber prepreg material based on graphene oxide and preparation method thereof is related to a kind of preparation of carbon fiber prepreg.The composition of surface modified carbon fiber prepreg material in mass ratio based on graphene oxide is：Carbon fiber：100 parts；Resin content in prepreg solution：40~60.The composition of the prepreg solution is (mass fraction)：Epoxy resin：100 parts, acetone：50~150 parts, graphene oxide：0.05~5.By the way that graphene oxide is evenly spread in epoxy resin prepreg solution, carbon fiber is made to be infiltrated with the epoxy resin prepreg solution containing graphene oxide again, carbon fiber surface is made to form one layer of graphene oxide/epoxy resin soakage layer, achieve the purpose that improve the interface performance between carbon fiber and epoxy resin-base, so as to obtain it is a kind of it is easy to operate, equipment is simple, is suitble to graphene oxide/carbon fiber/epoxy resin prepreg of industrialized production and composite material its product.
Description
Technical field
The present invention relates to a kind of preparations of carbon fiber prepreg, change more particularly, to a kind of surface based on graphene oxide
Property carbon fiber prepreg and preparation method thereof.
Background technology
Carbon fiber enhancement resin base composite material with its height than strong, performance designability, structure size stability is good, is convenient for
The advantages that large area global formation, is widely used in the fields such as aerospace, automobile and sports equipment.Carbon fiber prepreg refers to
With carbon fiber or its fabric product that impregnating resin matrix obtains under certain condition, it is the fiber-reinforced composite that can be stored
The semi-finished product of material have many advantages, such as that easily use, performance is stable, porosity is low, process cleans, in the composite using day
Become universal.
The reason of however, as this body structure of carbon fiber, the surface-active of carbon fiber is very low, the boundary formed with resin matrix
Face bonding is weaker, influences transverse tensile property, the layer of the overall mechanical properties of carbon fiber resin matrix composite, especially material
Between toughness and Hygrothermal Properties.For carbon fiber enhancement resin base composite material, the interfacial adhesion of carbon fiber and resin matrix
Performance has the overall performance of composite material important influence.Improve the superficiality of resin matrix and carbon fiber in prepreg
Matter, it is possible to directly improve the performance of composite material.
Since the interlayer region size of carbon fiber resin matrix composite is smaller (about 5~10 μm), nano material is through common
It is used as the modified material of its interlayer performance and interface performance.Graphene with unique two-dimentional multi-layer sheet structure, because of its protrusion
Physicochemical properties have carried out the research of numerous modified carbon fiber/resin prepreg materials and its composite material based on graphene.But by
Very regular in graphene-structured, surface-active is low, applied to carbon fiber/resin base prepreg and the modifying process of composite material
In, it usually needs surface chemical modification is carried out to graphene, to increase its surface active groups, to improve graphene and resin base
Bonding between body, carbon fiber.Patent [Zhao Donglin etc., Chinese invention patent, application number 201610339876.8] is in graphene
Surface or edge grafting-NH2, patent [Zhao Donglin etc., Chinese invention patent, application number 201610339807.7] and [Zhaoyang
Deng, Chinese invention patent, application number 201710031321.1] graphene is not only subjected to chemical modification, also with carbon nanotube group
Into binary reinforcing material, these undoubtedly increase technology difficulty and cost, and the use of carbon nanotube is also easy to cause to reunite
Influence the performance of material.
Graphene oxide is a kind of important derivative of graphene, and structure is essentially identical with graphene, this give
The good physical property of graphene oxide.On the two-dimentional basal plane of graphene oxide layer and there are some oxygen-containing functions in edge
Group, such as hydroxyl, epoxy group, carboxyl, these functional groups make it generate extraordinary physical absorption between organic resin matrix
And chemical reaction, while also can have extraordinary physical compatibility with carbon fiber.By our work found that, graphite oxide
The key of alkene modified carbon fiber surface property is the oxygen-containing functional group amount and graphene oxide controlled in graphene oxide structure
Disperse the number of plies, these state modulators are proper, the graphene oxide/carbon fiber/resin greatly promoted with regard to interface performance can be obtained
Surface modified system and composite system.
Invention content
The purpose of the present invention is to provide the surface modified carbon fiber prepreg material based on graphene oxide.
Another object of the present invention is to provide the preparation side of the surface modified carbon fiber prepreg material based on graphene oxide
Method.
The composition of surface modified carbon fiber prepreg material in mass ratio based on graphene oxide is：
Carbon fiber：100 parts；
Resin content in prepreg solution：40~60.
The composition of the prepreg solution is (mass fraction)：Epoxy resin：100 parts, acetone：50~150 parts, graphite oxide
Alkene：0.05~5.
The preparation method of the surface modified carbon fiber prepreg material based on graphene oxide includes the following steps：
1) carbon fibre initial rinse liquid is prepared
In step 1), the specific method for preparing carbon fibre initial rinse liquid can be：Carbon fibre initial rinse liquid is graphite oxide
The mixed system that alkene, epoxy resin, organic solvent form, is made graphene oxide water solution by Hummers methods, leads to therebetween
Control degree of oxidation is crossed, realizes the oxygen-containing group total content of control graphene oxide in oxygen atom/carbon atom (O/C)=(1/2)
Between~(1/10) (atom number ratio), the dispersion layer numerical control in acetone solvent is made as 1~10 layer；Ultrasound point is utilized simultaneously
It dissipates, between the dispersion number of plies of the control graphene oxide in acetone solvent is 1~10 layer；Graphene oxide water solution suction filtration is removed
Then water is directly dissolved in acetone soln, low-speed centrifugal removes precipitation, obtains supernatant liquid as graphite oxide allydione
Solution.A concentration of 6~8mg/mL of graphene oxide acetone soln can be controlled by processes such as rotary evaporations.
Graphene oxide acetone soln is prepared, ultrasonic 10min obtains mixed liquor A；Epoxy resin is dissolved in acetone soln
In, after stirring evenly, a concentration of the 40~60% of glue is controlled, obtains mixed liquid B；The mixed liquor A is mixed with mixed liquid B
Uniformly, ultrasonic 15min obtains mixed liquor C, and the wherein quality of graphene oxide is the 0.01%~5% of epoxy resin；
The carbon fiber prepreg is liquid bisphenol A type epoxy resin with epoxy resin, during room temperature storage between≤6 months；
Polyacrylonitrile carbon fiber, asphalt base carbon fiber etc. can be used in the carbon fiber material.
2) the surface modified carbon fiber prepreg material based on graphene oxide is prepared.
In step 2), the specific method for preparing the surface modified carbon fiber prepreg material based on graphene oxide can
For：It is 20%~30% to control relative air humidity, draws fibre bundle from creel, adjusts and be allowed to basic phase per bundle fiber tension
Movement velocity Deng, deflector roll is 0.01~0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration 40%~
60%, remove extra resin by Extruded roller, Extruded roller gap 2mm subsequently enters drying oven, 60~70 DEG C of drying temperature,
Solvent is made to volatilize, then device controls resin content as 40%~60% and prepreg quality after testing, volatile matter mass fraction control
System hereinafter, finally covered and wound with release paper, is preserved 2% under -18 DEG C of low temperature.
The carbon fiber prepreg can be unidirectional pre-immersion material, Fabric prereg, and two kinds of prepregs are corresponding for being prepared into
Carbon fibre composite product.
The present invention provide it is a kind of based on specific oxygen functional group content and dispersion the number of plies graphene oxide improve carbon fiber and
Carbon fiber/epoxy resin prepreg of epoxy resin-base interface performance and preparation method thereof.By the way that graphene oxide is uniform
It is distributed in epoxy resin prepreg solution, then carbon fiber is made to be infiltrated with the epoxy resin prepreg solution containing graphene oxide, make
Carbon fiber surface forms one layer of graphene oxide/epoxy resin soakage layer, and reaching improves between carbon fiber and epoxy resin-base
Interface performance purpose, so as to obtain, a kind of easy to operate, equipment is simple, is suitble to graphene oxide/carbon of industrialized production
Fiber/epoxy prepreg and composite material its product.
The carbon fiber prepreg of the present invention has the following advantages：
1) ability of composite material entirety anti-crack significantly improves, whole to have good toughness；
2) resin matrix is preferable to the wellability of carbon fiber, can be used for preparing slim prepreg；
3) there is good being coated with property at normal temperatures, suitable for the Lay up design of complex component；
4) interface performance between fiber and resin matrix significantly improves.
Description of the drawings
Fig. 1 is the preparation process route schematic diagram of carbon fiber prepreg of the present invention.
Fig. 2 is the surface topography for the carbon fiber/epoxy resin prepreg that surface of graphene oxide of the present invention is modified.In Fig. 2
In, A figures are carbon fiber/epoxy resin prepreg, and B figures are graphene oxide/carbon fiber/epoxy resin prepreg.
Fig. 3 is the fracture micro-appearance of graphene oxide/carbon fiber/epoxy resin composite material prepared by the present invention.
In Fig. 3, A figures are carbon fiber/epoxy resin composite material, and B figures are graphene oxide/carbon fiber/epoxy resin composite material (10
μm), C figures are graphene oxide/carbon fiber/epoxy resin composite material (2 μm).
Specific embodiment
Following embodiment will the present invention is further illustrated with reference to attached drawing.
The composition of surface modified carbon fiber prepreg material in mass ratio based on graphene oxide is：
Carbon fiber：100 parts；
Resin content in prepreg solution：40~60.
The composition of the prepreg solution is (mass fraction)：Epoxy resin：100 parts, acetone：50~150 parts, graphite oxide
Alkene：0.05~5.
The preparation method of the surface modified carbon fiber prepreg material based on graphene oxide includes the following steps：
1) carbon fibre initial rinse liquid is prepared：Carbon fibre initial rinse liquid is graphene oxide, epoxy resin, organic solvent composition it is mixed
Zoarium system, graphene oxide water solution is made by Hummers methods, therebetween by controlling degree of oxidation, realizes control oxidation
The oxygen-containing group total content of graphene between oxygen atom/carbon atom (O/C)=(1/2)~(1/10) (atom number ratio),
Dispersion layer numerical control in acetone solvent is made as 1~10 layer；Simultaneously using ultrasonic disperse, control graphene oxide is in acetone solvent
The dispersion number of plies between 1~10 layer；Graphene oxide water solution is filtered and is removed water, is then directly dissolved in acetone soln
In, low-speed centrifugal removes precipitation, obtains supernatant liquid as graphene oxide acetone soln.The processes such as rotary evaporation can be passed through
Control a concentration of 6~8mg/mL of graphene oxide acetone soln.Fig. 1 provides the preparation process road of carbon fiber prepreg of the present invention
Line schematic diagram, in Fig. 1, each label for：1 is tube, 2,3,4,5,6,7,11,12,13,16,17,19,20,24,25,27,
28 be carry-over pinch rolls, and 6 be submergence roller, and 9,10 be Extruded roller, and 14 be solvent-treatment system, and 15 be detector, and 18 is put paper web, and 21 are
Coldplate, 22 be trimming, and 23 be collection cylinder, and 26 be polyethylene deflector roll, and 29 be winding.
Graphene oxide acetone soln is prepared, ultrasonic 10min obtains mixed liquor A；Epoxy resin is dissolved in acetone soln
In, after stirring evenly, a concentration of the 40~60% of glue is controlled, obtains mixed liquid B；The mixed liquor A is mixed with mixed liquid B
Uniformly, ultrasonic 15min obtains mixed liquor C, and the wherein quality of graphene oxide is the 0.01%~5% of epoxy resin；
The carbon fiber prepreg is liquid bisphenol A type epoxy resin with epoxy resin, during room temperature storage between≤6 months；
Polyacrylonitrile carbon fiber, asphalt base carbon fiber etc. can be used in the carbon fiber material.
2) the surface modified carbon fiber prepreg material based on graphene oxide is prepared：Control relative air humidity for 20%~
30%, draw fibre bundle from creel, adjust and be allowed to of substantially equal per bundle fiber tension, the movement velocity of deflector roll for 0.01~
0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration 40%~60%, it is extra to be removed by Extruded roller
Resin, Extruded roller gap 2mm subsequently enter drying oven, and 60~70 DEG C of drying temperature makes solvent volatilize, then device control after testing
Resin content processed is 40%~60% and prepreg quality, and the control of volatile matter mass fraction is 2% hereinafter, finally being covered with release paper
It covers and winds, preserved under -18 DEG C of low temperature.
The carbon fiber prepreg is unidirectional pre-immersion material, Fabric prereg, and two kinds of prepregs are for being prepared into corresponding carbon
Fiber composite material workpiece.
Embodiment 1
Graphene oxide water solution is made by Hummers methods, therebetween by controlling degree of oxidation, realizes control oxidation
The oxygen-containing group total content of graphene is between oxygen atom/carbon atom (O/C)=(1/2)~(1/10) (atom number ratio).Together
Shi Liyong ultrasonic disperses, between the dispersion number of plies of the control graphene oxide in acetone solvent is 1~10 layer.By graphene oxide
Aqueous solution filters water removal, is then directly dissolved in acetone soln, and low-speed centrifugal removes precipitation, obtains supernatant liquid as oxygen
Graphite allydione solution.Can by the processes such as rotary evaporation control graphene oxide acetone soln a concentration of 6~
8mg/mL。
The acetone soln of graphene oxide is prepared, ultrasonic 10min obtains mixed liquor A；It is molten that epoxy resin is dissolved in acetone
In liquid, after stirring evenly, a concentration of the 40% of glue is controlled, obtains mixed liquid B；Above-mentioned mixed liquor A is mixed with mixed liquid B
Even, ultrasonic 15min obtains mixed liquor C, and the wherein quality of graphene oxide is the 2% of epoxy resin, and the carbon for obtaining the present invention is fine
Tie up prepreg solution.
It is 20%~30% to control relative air humidity, draws fibre bundle from creel, adjusts and be allowed to base per bundle fiber tension
This is equal, and the movement velocity of deflector roll is 0.01~0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration
40%, extra resin is removed by plastic squeeze, Extruded roller gap 2mm subsequently enters drying oven, and 60~70 DEG C of drying temperature makes
Solvent volatilizees, then device control resin content is 45% and prepreg quality after testing, and volatile matter mass fraction will be controlled 2%
Hereinafter, finally being covered and being wound with release paper, preserved under -18 DEG C of low temperature.
Embodiment 2
Graphene oxide water solution is made by Hummers methods, therebetween by controlling degree of oxidation, realizes control oxidation
The oxygen-containing group total content of graphene is between oxygen atom/carbon atom (O/C)=(1/2)~(1/10) (atom number ratio).Together
Shi Liyong ultrasonic disperses, between the dispersion number of plies of the control graphene oxide in acetone solvent is 1~10 layer.By graphene oxide
Aqueous solution filters water removal, is then directly dissolved in acetone soln, and low-speed centrifugal removes precipitation, obtains supernatant liquid as oxygen
Graphite allydione solution.Can by the processes such as rotary evaporation control graphene oxide acetone soln a concentration of 6~
8mg/mL。
The acetone soln of graphene oxide is prepared, ultrasonic 10min obtains mixed liquor A；It is molten that epoxy resin is dissolved in acetone
In liquid, after stirring evenly, a concentration of the 50% of glue is controlled, obtains mixed liquid B；The mixed liquor A is mixed with mixed liquid B
Even, ultrasonic 15min obtains mixed liquor C, and the wherein quality of graphene oxide is the 0.5% of epoxy resin, obtains the carbon of the present invention
Fiber prepreg liquid.
It is 20%~30% to control relative air humidity, draws fibre bundle from creel, adjusts and be allowed to base per bundle fiber tension
This is equal, and the movement velocity of deflector roll is 0.01~0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration
50%, extra resin is removed by plastic squeeze, Extruded roller gap 2mm subsequently enters drying oven, and 60~70 DEG C of drying temperature makes
Solvent volatilizees, then device control resin content is 50% and prepreg quality after testing, and volatile matter mass fraction will be controlled 2%
Hereinafter, finally being covered and being wound with release paper, preserved under -18 DEG C of low temperature.
Embodiment 3
Graphene oxide water solution is made by Hummers methods, therebetween by controlling degree of oxidation, realizes control oxidation
The oxygen-containing group total content of graphene is between oxygen atom/carbon atom (O/C)=(1/2)~(1/10) (atom number ratio).Together
Shi Liyong ultrasonic disperses, between the dispersion number of plies of the control graphene oxide in acetone solvent is 1~10 layer.By graphene oxide
Aqueous solution filters water removal, is then directly dissolved in acetone soln, and low-speed centrifugal removes precipitation, obtains supernatant liquid as oxygen
Graphite allydione solution.Can by the processes such as rotary evaporation control graphene oxide acetone soln a concentration of 6~
8mg/mL。
The acetone soln of graphene oxide is prepared, ultrasonic 10min obtains mixed liquor A；It is molten that epoxy resin is dissolved in acetone
In liquid, after stirring evenly, a concentration of the 60% of glue is controlled, obtains mixed liquid B；The mixed liquor A is mixed with mixed liquid B
Even, ultrasonic 15min obtains mixed liquor C, and the wherein quality of graphene oxide is the 0.05% of epoxy resin, obtains the present invention's
Carbon fibre initial rinse liquid.
It is 20%~30% to control relative air humidity, draws fibre bundle from creel, adjusts and be allowed to base per bundle fiber tension
This is equal, and the movement velocity of deflector roll is 0.01~0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration
60%, extra resin is removed by plastic squeeze, Extruded roller gap 2mm subsequently enters drying oven, and 60~70 DEG C of drying temperature makes
Solvent volatilizees, then device control resin content is 55% and prepreg quality after testing, and volatile matter mass fraction will be controlled 2%
Hereinafter, finally being covered and being wound with release paper, preserved under -18 DEG C of low temperature.
The present invention provides a kind of graphene oxides based on specific oxygen functional group content and the dispersion number of plies to improve carbon fiber
With graphene oxide/carbon fiber/epoxy resin prepreg of resin matrix interface performance and preparation method thereof.
The surface topography for the carbon fiber/epoxy resin prepreg that surface of graphene oxide of the present invention is modified is referring to Fig. 2.Scheming
In 2, A figures are carbon fiber/epoxy resin prepreg, and B figures are graphene oxide/carbon fiber/epoxy resin prepreg.The present invention exists
On the basis of the original starching of carbon fiber, based on the graphene oxide with specific oxygen functional group content and the dispersion number of plies, prepare a kind of
The resin prepreg liquid of solution-type based on graphene oxide makes carbon fiber surface form one layer of graphene oxide/epoxy resin leaching
Moisten layer, the carbon fiber prepreg that interface bond strength improves is made.Carbon fiber/epoxy that surface of graphene oxide of the present invention is modified
Composite material prepared by resin prepreg material is compared with the composite material prepared with traditional carbon fiber/epoxy resin prepreg, hair
The interface performance of existing carbon fiber and matrix resin is effectively improved (such as Fig. 3), and technological operation is convenient, is suitble to industrialized production.
Claims (8)
1. the surface modified carbon fiber prepreg material based on graphene oxide, it is characterised in that composition in mass ratio is：
Carbon fiber：100 parts；
Resin content in prepreg solution：40~60；
The composition of the prepreg solution is by mass fraction：Epoxy resin：100 parts, acetone：50~150 parts, graphene oxide：
0.05~5.
2. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as described in claim 1
In including the following steps：
1) carbon fibre initial rinse liquid is prepared；
2) the surface modified carbon fiber prepreg material based on graphene oxide is prepared.
3. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 1), it is described prepare carbon fibre initial rinse liquid specific method be：Carbon fibre initial rinse liquid is graphene oxide, asphalt mixtures modified by epoxy resin
The mixed system of fat, organic solvent composition, is made graphene oxide water solution, therebetween by controlling oxygen by Hummers methods
Change degree realizes the oxygen-containing group total content of control graphene oxide in oxygen atom/carbon atom (O/C)=(1/2)~(1/10)
Between, the dispersion layer numerical control in acetone solvent is made as 1~10 layer；Simultaneously using ultrasonic disperse, control graphene oxide is third
Between the dispersion number of plies in ketone solvent is 1~10 layer；Graphene oxide water solution is filtered and is removed water, is then directly dissolved in
In acetone soln, low-speed centrifugal removes precipitation, obtains supernatant liquid as graphene oxide acetone soln；Pass through rotary evaporation technique
Method controls a concentration of 6~8mg/mL of graphene oxide acetone soln.
4. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 1), graphene oxide acetone soln is prepared, ultrasonic 10min obtains mixed liquor A；Epoxy resin is dissolved in third
In ketone solution, after stirring evenly, a concentration of the 40~60% of glue is controlled, obtains mixed liquid B；By the mixed liquor A with mixing
Liquid B is uniformly mixed, ultrasonic 15min, obtains mixed liquor C, wherein the quality of graphene oxide for epoxy resin 0.01%~
5%.
5. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 1), the carbon fiber prepreg is liquid bisphenol A type epoxy resin with epoxy resin, during room temperature storage between≤6
A month.
6. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 1), the carbon fiber material is using polyacrylonitrile carbon fiber, asphalt base carbon fiber.
7. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 2), it is described prepare the surface modified carbon fiber prepreg material based on graphene oxide specific method be：Control is empty
Gas relative humidity is 20%~30%, draws fibre bundle from creel, adjusts and be allowed to of substantially equal per bundle fiber tension, the fortune of deflector roll
Dynamic speed is 0.01~0.2m/s, by whole diameter, dispersion and flattening, into steeping vat, gelatin concentration 40%~60%, by squeezing
Rubber roller removes extra resin, and Extruded roller gap 2mm subsequently enters drying oven, and 60~70 DEG C of drying temperature makes solvent volatilize,
Again after testing device control resin content be 40%~60% and prepreg quality, volatile matter mass fraction control 2% hereinafter,
It is finally covered and is wound with release paper, preserved under -18 DEG C of low temperature.
8. the preparation method of the surface modified carbon fiber prepreg material based on graphene oxide, feature exist as claimed in claim 3
In in step 2), the carbon fiber prepreg is unidirectional pre-immersion material, Fabric prereg, and two kinds of prepregs are corresponding for being prepared into
Carbon fibre composite product.
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| CN110396282A (en) * | 2019-08-30 | 2019-11-01 | 西安航空学院 | A kind of method of graphene interface modification carbon fiber/epoxy resin composite material |
| CN110983759A (en) * | 2019-12-19 | 2020-04-10 | 青岛墨金烯碳新材料科技有限公司 | Graphene modified carbon fiber pre-vulcanized fiber fabric and preparation method thereof |
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| CN111808310A (en) * | 2020-06-08 | 2020-10-23 | 安徽福斯特渔具有限公司 | Preparation method of special high-performance composite material pre-immersion liquid for aerospace |
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| CN112980146A (en) * | 2021-03-16 | 2021-06-18 | 威海宝威新材料科技有限公司 | Carbon fiber prepreg tube and preparation method thereof |
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