CN109971021A - A kind of fold graphene oxide/latex fexible film and its preparation and application - Google Patents
A kind of fold graphene oxide/latex fexible film and its preparation and application Download PDFInfo
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- CN109971021A CN109971021A CN201910265549.6A CN201910265549A CN109971021A CN 109971021 A CN109971021 A CN 109971021A CN 201910265549 A CN201910265549 A CN 201910265549A CN 109971021 A CN109971021 A CN 109971021A
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- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The present invention relates to a kind of fold graphene oxide/latex fexible film and its preparations and application.The film is to brush graphene oxide dispersion on the Emulsoid-film of pre-stretching, is dried, repetitive operation obtains.The preparation method includes: to handle Emulsoid-film with oxygen plasma, is then stretched to different degrees of and fixed；On the Emulsoid-film that graphene oxide dispersion is brushed to pre-stretching, it is subsequently placed under infrared lamp and dries.The film has good photic deformation performance, response can be generated quickly under infrared light photograph, and such response is reversible.
Description
Technical field
The invention belongs to photic dynamic material and its preparation and application field, in particular to a kind of fold graphene oxide/cream
Glue fexible film and its preparation method and application.
Background technique
Luminous energy is a kind of clean energy resource, can be carried out long-range, accurate, instant control, with human society " intelligence "
The reinforcement of development trend and environmental consciousness, optical Response material become the research hotspot of intellectual material.Sino-U.S. researcher is newest
Develop it is a kind of can strong binding hydrogel and bodily tissue novel photoresponse adhesive plaster, it is poly- with suture by action of ultraviolet light
The ferric ion for closing object coordination is reduced to ferrous ion, causes to suture the crosslinking of network solution and become solution again, so that
Strong bonding is efficiently removed (Yang G, Kangling W, et.al., Adv.Mater., DOI:10.1002/
adma.201806948).Research for photic deformable material usually surrounds the cross-linking type liquid containing photosensitive groups such as azobenzenes
Polycrystalline macromolecule expansion, the fresh report for occurring other type materials less.With being constantly progressive for Materials, traditional optical drive becomes
Shape material gradually shows deficiency, and such as preparation process complexity, the photoresponse time is long, and stability difference and regeneration rate are slow etc..
2004, British scientist separated for the first time using micromechanics stripping method prepare graphene this it is a kind of by carbon atom with
sp2Hybridized orbit forms the two-dimentional carbon nanomaterial that hexangle type is in honeycomb lattice, can not only form three-dimensional graphite but also can have been formed
The fullerene etc. of one-dimensional carbon nanotube, zero dimension.The excellent properties of graphene, such as the hard, high grade of transparency, thermal conductivity and conductance
Rate etc. makes it be used widely in nanometer electronic device, transistor, sensing and aeronautical material.Graphene oxide is graphene
A large amount of functional groups, such as-OH ,-COOH ,-O-are contained in a kind of important derivatives, surface.The presence of these functional groups makes
Graphene oxide has some new performances, and such as good dispersibility and Water Molecular Adsorption/desorption ability increase and polymer
Interaction etc..Existing correlative study work prepares film with graphene oxide and is applied to actuating field, such as gradient
The rGO/GO film of structure, and Au/GO duplicature etc. (a kind of preparation method of the graphene of multiple response/graphite oxide film, specially
Benefit number: ZL 201410817909.6；A kind of electric actuation graphene oxide/metal bi film and preparation method thereof, the patent No.:
ZL 201610146807.5), but these graphene-based actuating films all do not have tensile property, it is difficult to meet related application
Flexibility requirements of the scene to actuation device.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of fold graphene oxide/latex fexible film and its preparations
Methods and applications are lacked with overcoming in the prior art that photic dynamic material photoresponse time is long, stability difference and regeneration rate are slow etc.
It falls into.
The present invention provides a kind of fold graphene oxide/latex fexible film, and the film is to disperse graphene oxide
Liquid is brushed on the Emulsoid-film of pre-stretching, is dried, repetitive operation obtains.
The Emulsoid-film of the pre-stretching carries out plasma treatment before the stretching.
The present invention also provides a kind of preparation methods of fold graphene oxide/latex fexible film, comprising:
(1) Emulsoid-film is handled with oxygen plasma, is then stretched to different degrees of and fixed；
(2) graphene oxide dispersion is brushed on the Emulsoid-film being pre-stretched in step (1), is subsequently placed in infrared lamp
Under dry, repetitive operation obtains fold graphene oxide/latex fexible film.
Plasma processing time is 5~30min in the step (1).
The level of stretch of Emulsoid-film is 0~80% in the step (1).
The preparation of graphene oxide dispersion includes: to add graphene oxide into distilled water in the step (2), stirring
Afterwards ultrasonic treatment 2~4h to get；The concentration of graphene oxide dispersion is 2~15mg/mL.
Graphene oxide dispersion is brushed in the step (2) on the Emulsoid-film being pre-stretched in step (1) are as follows: use
Writing brush type brush adsorption and oxidation graphene dispersing solution, and equably brush on the Emulsoid-film of pre-stretching.
The power of infrared lamp is 10~50mW/m in the step (2)2。
Repetitive operation in the step (2) are as follows: repeat step (2) 3~9 times.
The present invention also provides a kind of applications of fold graphene oxide/latex fexible film.
Beneficial effect
(1) operating method of the invention is simple, and preparation process is fast and safely；
(2) fold of the invention graphene oxide/latex plastic deformation film has good photic deformation performance, can
Generate response quickly under infrared light photograph, and such response is reversible；
(3) fold of the invention graphene oxide/latex plastic deformation film has high-specific surface area, the spies such as low-surface-energy
Point has good flexible and stable photic deformation performance, in intelligent wearing, artificial muscle, CD-ROM driver, stretchable electronics device
There is certain application prospect in the fields such as part, stress strain gauge and smart coat.
Detailed description of the invention
Fig. 1 is deformation process figure of the graphene oxide/latex plastic deformation film under infrared light in embodiment 1.
Fig. 2 is graphene oxide/latex plastic deformation film SEM photograph in embodiment 1.
Fig. 3 is fold graphene oxide/latex plastic deformation film SEM photograph in embodiment 2.
Fig. 4 is fold graphene oxide/latex plastic deformation film SEM photograph in embodiment 3.
Fig. 5 is fold graphene oxide/latex plastic deformation film SEM photograph in embodiment 4.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
(1) at room temperature, the graphite oxide 1g prepared with improved Hummers method is weighed, the distillation of 100mL is measured
The two is transferred in 200mL reagent bottle by water, and stirring carries out the ultrasound of 4h after five minutes, obtains the oxidation that concentration is 10mg/mL
Graphene dispersing solution.
(2) by Emulsoid-film with oxygen plasma handle after ten minutes on it measure 6 × 6cm square and by hand
Chopper is cut out.The Emulsoid-film cut out is fixed with clip, level of stretch 0%.
(3) graphene oxide dispersion is taken on culture dish, with writing brush type brush adsorption and oxidation graphene dispersing solution, and uniformly
Scrubbing brush is coated on Emulsoid-film, is subsequently placed in infrared lamp (20mW/m2) under dry, the time dried every time be 50s, carry out 6 times
To get graphene oxide/latex plastic deformation film after drying, Fig. 2 is the SEM photograph of this side of graphite oxide, can from figure
To find out that the pattern of fold occur in graphite oxide ene coatings.
Graphene oxide obtained/latex plastic deformation film is cut out into feathered compound leaf alternate, in palmate arrangement
Blade shape gives infrared light-illuminating, the deformation of recording sheet and recovery situation, as shown in Figure 1,0~30s is the change of film
Shape process, 30s start to restore, restore completely using after 20s later.Deformation of thin membrane is rapid during being somebody's turn to do, and whole process energy
It repeats 50 times, cyclical stability is preferable.
Embodiment 2
According to the method for embodiment 1, in addition to by the square Emulsoid-film of 6 × 6cm after plasma treatment in embodiment 1
Length and width are stretched to 7.2cm and are fixed outside with clip, remaining is same as Example 1, removes the clip of fixed film, make film certainly
So be retractable to no longer change to get level of stretch be 20% fold graphene oxide/Emulsoid-film, Fig. 3 be graphite oxide this
The SEM photograph of side, as can be seen from the figure the surface folding of graphite oxide ene coatings is more, and deformation extent is bigger.This implementation
Fold graphene oxide/Emulsoid-film deformation effect made from example and recovery degree and the sample in example 1 are almost the same.
Embodiment 3
According to the method for embodiment 1, in addition to by the square Emulsoid-film of 6 × 6cm after plasma treatment in embodiment 1
Length and width are stretched to 9.0cm and are fixed outside with clip, remaining is same as Example 1, removes the clip of fixed film, make film certainly
So be retractable to no longer change to get level of stretch be 50% fold graphene oxide/Emulsoid-film, Fig. 4 be graphite oxide this
The SEM photograph of side, as can be seen from the figure mechanically deform causes graphite oxide ene coatings to show periodical fold.This implementation
Fold graphene oxide/Emulsoid-film deformation effect made from example and recovery degree and the sample in example 1 are almost the same.
Embodiment 4
According to the method for embodiment 1, in addition to by the square Emulsoid-film of 6 × 6cm after plasma treatment in embodiment 1
Length and width are stretched to 10.8cm and are fixed outside with clip, remaining is same as Example 1, removes the clip of fixed film, makes film
Naturally it is retractable to and no longer changes the fold graphene oxide/Emulsoid-film for being 80% to get level of stretch, Fig. 5 is graphite oxide
The SEM photograph of this side, as can be seen from the figure the pleated structure of graphite oxide ene coatings is more intensive, and specific surface area significantly increases
Greatly.Sample base in the graphene oxide of fold made from the present embodiment/Emulsoid-film deformation effect and recovery degree and example 1
This is consistent.
Comparative example 1
Patent ZL 201410817909.6 is prepared for a kind of graphene/graphite oxide film of multiple response, specific steps
Are as follows: graphite oxide is subjected to ultrasonic disperse in deionized water, adjusts its pH after obtaining graphite oxide aqueous solution.By active metal
Plate is placed in graphite oxide aqueous solution, places levelling bench, is kept certain temperature and is taken out active metal after placing certain number of days
Plate.It is rinsed, dry, stripping obtains graphene/graphite oxide film of multiple response.It is described in text, this film tool
Have the advantages that preparation process it is simple, can extensive, low cost production, deform it is fast, but in a particular embodiment, multiple sound obtained
The graphene answered/graphite oxide film surface is smooth, does not show fold pattern, and do not have tensile property, it is difficult to meet related
Flexibility requirements of the application scenarios to actuation device.
Comparative example 2
Patent ZL 201610146807.5 is prepared for a kind of electric actuation graphene oxide/metal bi film, specific steps
Are as follows: graphite oxide dispersion is obtained into graphene oxide colloidal sol by cell pulverization, thermal evaporation is carried out, it is thin to obtain graphene oxide
Film；By graphene oxide film by high-vacuum resistance evaporation coating method evaporation metal then obtain electric actuation graphene oxide/
Metal bi film.Described in text, this film has the advantages that stable structure and electroluminescent deformation function admirable, but is being embodied
In example, the diversity of deformation of thin membrane is not shown.
Claims (9)
1. a kind of fold graphene oxide/latex fexible film, which is characterized in that the film is by graphene oxide dispersion
It brushes on the Emulsoid-film of pre-stretching, dries, repetitive operation obtains.
2. film according to claim 1, which is characterized in that the Emulsoid-film of the pre-stretching carries out plasma before the stretching
Processing.
3. a kind of preparation method of fold graphene oxide/latex fexible film, comprising:
(1) Emulsoid-film is handled with oxygen plasma, is then stretched to different degrees of and fixed；
(2) graphene oxide dispersion is brushed on the Emulsoid-film being pre-stretched in step (1), is subsequently placed under infrared lamp and dries in the air
Dry, repetitive operation obtains fold graphene oxide/latex fexible film.
4. method according to claim 3, which is characterized in that plasma processing time is 5~30min in the step (1).
5. method according to claim 3, which is characterized in that in the step (1) level of stretch of Emulsoid-film be 0~
80%.
6. method according to claim 3, which is characterized in that the preparation packet of graphene oxide dispersion in the step (2)
Include: adding graphene oxide into distilled water, after stirring be ultrasonically treated 2~4h to get；The concentration of graphene oxide dispersion is
2~15mg/mL.
7. method according to claim 3, which is characterized in that the power of infrared lamp is 10~50mW/m in the step (2)2。
8. method according to claim 3, which is characterized in that repetitive operation in the step (2) are as follows: repetition step (2) 3~
9 times.
9. a kind of fold graphene oxide/latex fexible film as described in claim 1 is in intelligent wearing, artificial muscle, CD-ROM drive
The application of dynamic device, stretchable electronic device, stress strain gauge and smart coat.
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| CN201910265549.6A CN109971021B (en) | 2019-04-03 | 2019-04-03 | Folded graphene oxide/latex flexible film and preparation and application thereof |
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| CN201910265549.6A CN109971021B (en) | 2019-04-03 | 2019-04-03 | Folded graphene oxide/latex flexible film and preparation and application thereof |
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| WO2021216001A1 (en) * | 2020-04-22 | 2021-10-28 | National University Of Singapore | 2d materials, methods of fabrication and uses thereof |
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| CN112323498A (en) * | 2020-11-02 | 2021-02-05 | 芜湖富春染织股份有限公司 | Multifunctional fabric and preparation method and application thereof |
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| CN109971021B (en) | 2022-01-11 |
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