CN106930095A - It is a kind of based on Langmuir Blodgett technologies molecular level coat carbon fiber method - Google Patents
It is a kind of based on Langmuir Blodgett technologies molecular level coat carbon fiber method Download PDFInfo
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- CN106930095A CN106930095A CN201710143067.4A CN201710143067A CN106930095A CN 106930095 A CN106930095 A CN 106930095A CN 201710143067 A CN201710143067 A CN 201710143067A CN 106930095 A CN106930095 A CN 106930095A
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- carbon fiber
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Abstract
Method of Langmuir Blodgett (LB) technologies in molecular level coat carbon fiber is based on the present invention relates to one kind, including：（1）Graphene oxide sprawls the preparation of solution；（2）Graphene oxide is sprawled water surface monolayer；（3）Using LB technologies, the carbon fiber of graphene oxide monolayer coating is prepared.The present invention realizes regulation and control, arrangement, assembling and modification of the graphene oxide in the molecular level of carbon fiber surface, realize the modification to carbon fiber surface molecular level, the fields such as carbon fiber reinforcement, functional material are can be widely applied to, there is good practical value and potential value.
Description
Technical field
The invention belongs to functional material preparation field, more particularly to a kind of method of carbon fiber modification.
Background technology
As developing the most ripe carbon fiber in carbon material reinforcement family, with proportion is small, high-strength and high-modulus, resistance to height
Temperature, abrasion-resistant, conduction, heat conduction, it is corrosion-resistant the features such as, its composite is applied on space flight, guided missile and sports equipment, can be with
Significantly mitigate weight, improve payload, improve performance, be the important feature reinforcing material of aerospace industry.But carbon fiber
Surface inertness is big, active function groups are few, causes it poor with the interface adhesion of resin matrix and there is more defect, makes resin
Matrix cannot and reinforcement realize good combination, affect the performance of reinforcement performance.
For the material of " changing for 21st century " "-Graphene, because of the performance such as its excellent mechanics and conduction, as material
One of focus of field of scientific study.By taking the excellent mechanical property of Graphene as an example, its modulus is up to 1 Tpa, and tensile strength is high
It is most strong material known at this stage up to 240 Gpa.The development for being found to be carbon fiber reinforcement of Graphene provides brand-new
Opportunity.Surface of graphene oxide has abundant functional group, good dispersion, so as to easily form more preferably interface cohesion shape
State, prepares High-performance graphite oxide alkene enhancing composite.Graphene oxide/carbon fibre reinforced composite can give full play to
Carbon fiber and the respective advantage performance of graphene oxide, significantly improve the interaction between two-phase and boundary strength, and it is right to realize
The design and control of interface structure and performance, increasingly cause the concern of numerous scholars.At present, carbon fiber reinforcement
Preparation method be broadly divided into two kinds：One kind is in the presence of metallic catalyst, to be existed by chemical gaseous phase depositing process (CVD)
Carbon fiber surface direct growth goes out graphene oxide；It is another then be using grafting method, by chemistry or physical bond
Graphene oxide is grafted to carbon fiber surface, CVD growing method research relative maturities, but technical equipment requirement is higher, it is unfavorable
In being applied in actual production；And the high-temperature process in the method reduces the chemical bond of fibre reinforcement and resin
Close, also create declining to a great extent for fibrous mechanical property；Meanwhile, metallic catalyst residual can also badly influence reinforcement with tree
The interfacial bond property of fat.Problem above causes graphene oxide/carbon fiber multi-dimension structure prepared by CVD methods to interface
Enhancing effect it is very limited, and grafting method can avoid the variety of problems in CVD preparation methods.But due to fiber surface
Active site is less, and graphene oxide grafting density is small in Multi-scale model prepared by the method, the knot of skewness and fiber
Closing intensity cannot ensure, while the chloride process for preparing has larger murder by poisoning to people, it is more difficult to promote production application.Meanwhile, with
Upper method all can not carry out arrangement, regulation and control and the design of molecular level at interface.
And the present invention is capable of achieving graphene oxide controllable, orderly in molecular level with new LB self-assembling techniques
Carbon fiber is self-assembled to, by the design in molecular level, a kind of graphene oxide monolayer coat carbon fiber is prepared for,
Possess two kinds of excellent functions of material simultaneously again for deep functional nano-fiber provides a kind of new method, prepared by the present invention
This graphene oxide monolayer coat carbon fiber, method is simple, can be mass, and is a kind of brand-new fibre reinforced
Body, with wide market application foreground.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of based on LB technologies in the side of molecular level coat carbon fiber
Method, the method is simple to operate, mild condition, in production process, do not use toxic reagent, it is to avoid environmental pollution, with compared with
Good market application foreground.
It is a kind of based on LB technologies molecular level coat carbon fiber method, including：
Step 1：Graphene oxide sprawls the preparation of solution；
Step 2：The preparation of monolayer graphene oxide：Graphene oxide is sprawled into solution to be spread over by the way that syringe is careful
The water surface, obtains swimming in the sparse monolayer graphene oxide of the water surface, by compressing sliding barrier, reduces water surface area, compression
The graphene oxide of the water surface, to form the film of densification, obtains swimming in the graphene oxide film of water surface monolayer arrangement；
Step 3：Monolayer graphene oxide coat carbon fiber：Using LB technologies, the cause of the water surface will be swum in by film balance
Close graphene oxide film is transferred on carbon fiber, obtains the carbon fiber of graphene oxide monolayer coating；
Preferably, the spreading solvent described in described step 1 is the mixed solution of pure water and methyl alcohol；
Preferably, the spreading solvent described in described step 1 is that the volume ratio of pure water and methyl alcohol is 1：1~1：10；
Preferably, the concentration of the graphene oxide of the preparation described in described step 2 is 0.05mg/ml ~ 0.2mg/ml；
Preferably, the translational speed of the sliding barrier described in described step 2 is 0.5cm/min ~ 2.0cm/min；
Preferably, the pull rate described in described step 3 is 0.5 mm/min ~ 2.0 mm/min.
Beneficial effect：
（1）The present invention is prepared for graphene oxide monolayer coat carbon fiber using LB methods, and preparation method is simple, condition temperature
With；
（2）In production process, do not use toxic reagent, it is to avoid environmental pollution.
Brief description of the drawings
Fig. 1 schemes to carry out the SEM of the carbon fiber of coating；
Fig. 2 schemes for the SEM of graphene oxide monolayer coat carbon fiber；
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1
Graphene oxide sprawls the preparation of solution, comprises the following steps：
First, the ml of graphene oxide water solution 3.0 of 1.0 mg/ml is configured, 15.0 ml first is then added in above-mentioned solution
Alcohol, stirs 20 min, and the graphene oxide for obtaining final concentration of 0.167 mg/ml sprawls solution.
Embodiment 2
The preparation of monolayer graphene oxide, comprises the following steps：
Take the above-mentioned graphene oxides of 10.0 ml and sprawl solution, the water in LB tanks is drop by drop carefully spread over injection
Face, tank area is 10*20cm, stands 20 minutes, after the methyl alcohol volatilization of the water surface is complete, mobile sliding barrier, and speed is 1.0 cm/
Min, when the distance for moving to sliding barrier is 1cm, stops movement, stands, and waits monolayer graphene oxide film self assembly
Formed.
Embodiment 3
The preparation of the carbon fiber of graphene oxide monolayer coating, comprises the following steps：
Clip length is 7cm, the carbon fiber of a diameter of 0.7mm, and by controlling film balance parameter, settings impregnating speed is 1mm/
By impregnated carbon fiber in LB tanks, the length below the immersed in liquid level of carbon fiber is 4cm to min, waits liquid level stabilizing 20 minutes
Afterwards, carbon fiber is lifted with the pull rate of 1.0 mm/mi, realizes that water surface monolayer graphene oxide is transferred to carbon fiber surface
Face.Then, the carbon fiber before and after coating observes its appearance structure, the SEM illustrated handbooks of carbon fiber under a scanning electron microscope respectively
Fig. 1, the carbon fiber of graphene oxide monolayer coating is shown in Fig. 2.
Claims (5)
1. it is a kind of to be based on Langmuir-Blodgett（LB）Technology molecular level coat carbon fiber method, including following step
Suddenly：
Step 1：Graphene oxide sprawls the preparation of solution；
Step 2：Graphene oxide is sprawled into solution and spreads over the water surface, obtain swimming in the monolayer graphene oxide of the water surface；
Step 3：Using LB technologies, by compressing sliding barrier, the graphene oxide of the water surface is compressed, to form the film of densification, then,
The graphene oxide film of the water surface is transferred on carbon fiber by film balance, obtains the carbon of graphene oxide monolayer coating
Fiber.
2. it is according to claim 1 it is a kind of based on LB technologies molecular level coat carbon fiber method, it is characterised in that：
Step（1）Described in spreading solvent be the mixed solution of pure water and methyl alcohol, its volume ratio is 1：1~1：10.
3. according to described in claim 1 it is a kind of based on LB technologies molecular level coat carbon fiber method, it is characterised in that：Step
Suddenly（1）Described in graphene oxide sprawl solution, wherein the concentration of graphene oxide is 0.05mg/ml ~ 0.2mg/ml.
4. it is according to claim 1 it is a kind of based on LB technologies molecular level coat carbon fiber method, it is characterised in that：
Step（2）Described in the translational speed of sliding barrier be 0.5cm/min ~ 2.0cm/min.
5. it is according to claim 1 it is a kind of based on LB technologies molecular level coat carbon fiber method, it is characterised in that：
Step（3）Described in by film balance the graphene oxide film of the water surface is transferred on carbon fiber, wherein film balance is carried
Pulling rate degree is 0.5 mm/min ~ 2.0 mm/min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622885A (en) * | 2018-07-06 | 2018-10-09 | 青岛大学 | A kind of preparation method of graphene film |
| CN110500943A (en) * | 2019-08-20 | 2019-11-26 | 华东师范大学 | A kind of patterned flex strain transducer and preparation method |
| CN112960671A (en) * | 2021-02-03 | 2021-06-15 | 西北工业大学 | Graphene oxide/molybdenum disulfide composite thin film device, preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043654A (en) * | 2011-10-12 | 2013-04-17 | 国家纳米科学中心 | Film containing graphene and/or graphene oxide, and preparation method thereof |
| CN103450461A (en) * | 2013-08-02 | 2013-12-18 | 电子科技大学 | Method for preparing composite nanometer film |
-
2017
- 2017-03-10 CN CN201710143067.4A patent/CN106930095A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043654A (en) * | 2011-10-12 | 2013-04-17 | 国家纳米科学中心 | Film containing graphene and/or graphene oxide, and preparation method thereof |
| CN103450461A (en) * | 2013-08-02 | 2013-12-18 | 电子科技大学 | Method for preparing composite nanometer film |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622885A (en) * | 2018-07-06 | 2018-10-09 | 青岛大学 | A kind of preparation method of graphene film |
| CN108622885B (en) * | 2018-07-06 | 2020-01-07 | 青岛大学 | Preparation method of graphene film |
| CN110500943A (en) * | 2019-08-20 | 2019-11-26 | 华东师范大学 | A kind of patterned flex strain transducer and preparation method |
| CN112960671A (en) * | 2021-02-03 | 2021-06-15 | 西北工业大学 | Graphene oxide/molybdenum disulfide composite thin film device, preparation method and application |
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