CN107176603A - A kind of method for preparing large area graphene oxide film - Google Patents
A kind of method for preparing large area graphene oxide film Download PDFInfo
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- CN107176603A CN107176603A CN201710482311.XA CN201710482311A CN107176603A CN 107176603 A CN107176603 A CN 107176603A CN 201710482311 A CN201710482311 A CN 201710482311A CN 107176603 A CN107176603 A CN 107176603A
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- graphene oxide
- film
- colloidal sol
- large area
- oxide film
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Abstract
The present invention relates to a kind of method of quick preparation large area graphene oxide film, using graphene oxide colloidal sol as raw material, graphene oxide colloidal sol is prepared using improved Hummers methods.By the carry out proportioning concentration of graphene oxide colloidal sol, 8 12mg/ml graphene oxide colloidal sol is obtained.Substrate surface by obtained colloidal sol in smooth pliable carries out film, and oven temperature is set and dried film to 40 ~ 60 DEG C.The graphene oxide film for obtaining dry is peeled off, that is, obtains large area graphene oxide film, graphene oxide film has very strong bending property, and the size of film depends on the area of substrate.
Description
Technical field
The invention belongs to material science preparing technical field, and in particular to a kind of quick preparation large area graphene oxide is thin
The method of film.
Background technology
Graphene oxide is the Graphene derivative containing abundant oxygen-containing functional group, can be peeled off inexpensively by chemical oxidation
Graphite and obtain.Graphene oxide has good water solubility, it is easy to film forming.Therefore, first with graphene oxide colloidal sol film forming, then
Reduction treatment is carried out to graphene oxide film, the Flexible graphene film of low capital large area can be prepared.Its key is
How large area graphene oxide film is quickly prepared, and existing technology of preparing uses suction filtration film forming, the method suction filtration process mostly
Time is longer, and filter membrane is peeled off difficult, it is necessary to can just obtain complete filter membrane with solvent dissolving substrate, and substrate is not reproducible to be utilized,
Patent of the present invention will provide a kind of method for solving this problem.
The content of the invention
The technical problems to be solved by the invention are to provide one kind for shortcoming of the prior art and prepare large area oxygen
The method of graphite alkene film, this method can quickly prepare the graphene oxide film of large area, and process is simple, technique
When length, the graphene oxide film thickness of preparation is uniform, and film size can be customized according to the area of substrate, and substrate can be weighed
Multiple to utilize, the graphene oxide film prepared has very strong toughness.
To solve above technical problem, the technical scheme that the present invention takes is as follows：
A kind of method for preparing large area graphene oxide film, it is characterised in that：Using graphene oxide colloidal sol as raw material, pass through
Film, drying, stripping technology prepare large area graphene oxide film, comprise the following steps that：
（1）Graphene oxide colloidal sol is prepared using improved Hummers methods, graphene oxide collosol concentration is controlled in 8-
12mg/ml；
（2）By step（1）Obtained graphene oxide colloidal sol raw material, with double faced adhesive tape film applicator is fixed in the substrate of smooth pliable
Upper carry out film, film speed is 2-4cm/s, and coating thickness is 300-500um；
（3）By step（2）The raw material of processing is dried in an oven, and drying temperature is 40-60 DEG C；
（4）By step（3）Obtain drying product to be peeled off, that is, obtain required product.
The substrate is methacrylate sheet or plastic plate, and substrate thickness is 2-5mm.
The step（4）In stripping means be to be provoked dried film from the edge of substrate with paper knife, by one
Slowly uncover at end, you can obtain complete film.
The method for the preparation large area graphene oxide film that the present invention is provided, this method can quickly prepare big face
Long-pending graphene oxide film, process is simple, length during technique, and the graphene oxide film thickness of preparation is uniform, film size
It can be customized according to the area of substrate, substrate can be reused, the graphene oxide film prepared has very strong tough
Property.
Embodiment
Below in conjunction with specific specific embodiment, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 8mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in lucite substrate surface thick 2mm.
（3）Obtained film is placed in baking oven, it is 40 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Embodiment 2
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 12mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in lucite substrate surface thick 2mm.
（3）Obtained film is placed in baking oven, it is 40 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Embodiment 3
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 8mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in plastic plate substrate surface thick 4mm.
（3）Obtained film is placed in baking oven, it is 40 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Embodiment 4
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 12mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in plastic plate substrate surface thick 4mm.
（3）Obtained film is placed in baking oven, it is 40 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Embodiment 5
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 8mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in plastic plate substrate surface thick 3mm.
（3）Obtained film is placed in baking oven, it is 60 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Embodiment 6
According to a kind of method of quick preparation large area graphene oxide film of the present embodiment, using graphene oxide colloidal sol as original
Material, in turn includes the following steps：
（1）Graphene oxide colloidal sol is matched, concentrates, obtains 12mg/ml graphene oxide colloidal sol.
（2）Colloidal sol is subjected to film in plastic plate substrate surface thick 3mm.
（3）Obtained film is placed in baking oven, it is 60 DEG C to set temperature, is finished to dried coating film.
（4）Dry film is peeled off, that is, obtains large area graphene oxide film.
Claims (3)
1. a kind of method for preparing large area graphene oxide film, it is characterised in that：Using graphene oxide colloidal sol as raw material, lead to
Cross film, drying, stripping technology and prepare large area graphene oxide film, comprise the following steps that：
Graphene oxide colloidal sol is prepared using improved Hummers methods, graphene oxide collosol concentration is controlled in 8-12mg/
ml；
By step（1）Obtained graphene oxide colloidal sol raw material, is fixed on film applicator in the substrate of smooth pliable with double faced adhesive tape
Film is carried out, film speed is 2-4cm/s, and coating thickness is 300-500um；
By step（2）The raw material of processing is dried in an oven, and drying temperature is 40-60 DEG C；
By step（3）Obtain drying product to be peeled off, that is, obtain required product.
2. a kind of method for preparing large area graphene oxide film according to claim 1, it is characterised in that：The base
Bottom is methacrylate sheet or plastic plate, and substrate thickness is 2-5mm.
3. a kind of method for preparing large area graphene oxide film according to claim 1 or 2, it is characterised in that：Institute
State step（4）In stripping means be to be provoked dried film from the edge of substrate with paper knife, slowly taken off by one end
Rise, you can obtain complete film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482311.XA CN107176603A (en) | 2017-06-22 | 2017-06-22 | A kind of method for preparing large area graphene oxide film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482311.XA CN107176603A (en) | 2017-06-22 | 2017-06-22 | A kind of method for preparing large area graphene oxide film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107176603A true CN107176603A (en) | 2017-09-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710482311.XA Pending CN107176603A (en) | 2017-06-22 | 2017-06-22 | A kind of method for preparing large area graphene oxide film |
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| CN (1) | CN107176603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392717A (en) * | 2020-03-25 | 2020-07-10 | 宁波石墨烯创新中心有限公司 | Preparation method of concentrated graphene oxide solution and heat conducting film |
Citations (3)
| 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 |
| CN103466603A (en) * | 2013-08-09 | 2013-12-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | Preparation method of graphene dispersion liquid, and preparation method of graphene film |
| CN104874301A (en) * | 2014-02-28 | 2015-09-02 | 中国科学院上海高等研究院 | Graphene oxide film, preparation method and applications thereof |
-
2017
- 2017-06-22 CN CN201710482311.XA patent/CN107176603A/en active Pending
Patent Citations (3)
| 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 |
| CN103466603A (en) * | 2013-08-09 | 2013-12-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | Preparation method of graphene dispersion liquid, and preparation method of graphene film |
| CN104874301A (en) * | 2014-02-28 | 2015-09-02 | 中国科学院上海高等研究院 | Graphene oxide film, preparation method and applications thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392717A (en) * | 2020-03-25 | 2020-07-10 | 宁波石墨烯创新中心有限公司 | Preparation method of concentrated graphene oxide solution and heat conducting film |
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Application publication date: 20170919 |