CN105712321A - Composition liquid used for stripping graphene - Google Patents
Composition liquid used for stripping graphene Download PDFInfo
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- CN105712321A CN105712321A CN201410705085.3A CN201410705085A CN105712321A CN 105712321 A CN105712321 A CN 105712321A CN 201410705085 A CN201410705085 A CN 201410705085A CN 105712321 A CN105712321 A CN 105712321A
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- acrylic resin
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Abstract
The invention discloses composition liquid used for stripping graphene. The composition liquid comprises the following components in parts by weight: 100 parts of an alcohols solvent, 3-20 parts of hydroxy acrylic resin, and 1-5 parts of grinding sand grains. The composition liquid is cooperated with hydroxy acrylic resin through the alcohols solvent, then penetrated into a graphite flake layer, a hydrogen bond is formed; during a mechanical grinding process, the hydrogen bond is destroyed by the generated heat or through an external heating mode, so that an impact force is generated to a graphite layer; compared with the composition liquid without containing of the hydroxy acrylic resin, hydrogen bond effect in the composition liquid is weak, the directional large impact force cannot be generated to the graphite flake layer, the long-chain hydroxy acrylic resin plays the positioning effect to the position of the hydrogen bond; in addition, the grinding sand grains added in a system are cooperated with mechanical grinding for generating stronger shearing effect to the graphite flake layer; the composition liquid is cooperated with the mechanical grinding, and stripping of the graphene can be effectively promoted.
Description
Technical field
The present invention relates to Graphene production technical field, being specifically related to a kind of for graphite being peeled off the combination liquid for Graphene.
Background technology
Graphene is a kind of two-dimensional material with good flexibility, electrical property.You need to add is that, stricti jurise is said, Graphene is the lamellar of a kind of monolayer；But due to the preparation difficulty of single-layer graphene, generally also the form the few-layer graphene alkene with similar performance is also ranged in the category of Graphene.
At present, the method that prepared by Graphene mainly has: chemically grown method and physics stripping method.Low compared to efficiency, be not suitable for the chemically grown method of industrialized mass production; it is raw material that physics stripping method mainly adopts cheap graphite; make graphite layers peeling-off by graphite crystal is applied mechanical force; break the Van der Waals force of graphite layers; forming monolithic graphite alkene or form the few-layer graphene alkene, this physical separation methods has more industrial prospect and applicable large-scale production.
In Graphene stripping process, it is necessary to add some auxiliary agents, to increase the interlayer distance of graphite or so-called intercalation, so that graphite is peeled off better.As adopted nitric acid, potassium permanganate, chromic acid or hydrogen peroxide as oxidant, concentrated sulphuric acid, as intercalator, introduces the oxy radicals such as hydroxyl, epoxide group and carboxyl at graphite layers or edge, increase graphite layers from, be beneficial to follow-up graphite layers and peel off.But this chemical substance intercalated technique acid consumption is big, production process has the pollution of the harmful gass such as SOx, NOx or heavy metal ion, product there is sulfur remain, the Graphene finally given is easily generated defect, and in the application equipment there is is corrosion, reduce the service life of equipment, add production cost.
Summary of the invention
It is an object of the invention to overcome the defect existed in prior art, it is provided that a kind of combination liquid peeled off for Graphene, this combination liquid cooperative mechanical is ground, it is possible to be efficiently peeled off graphite, and the structural deterioration of Graphene is little.
For realizing the purpose of the present invention, the technical scheme is that a kind of combination liquid peeled off for Graphene, the composition of this combination liquid includes:
Alcohols solvent 100 parts
Hydroxylated acrylic resin 3～20 parts
Frosted grain 1～5 part
Wherein, each component is in its parts by weight.
Preferred technical scheme is, described alcohols solvent is one or more in ethanol, normal propyl alcohol, n-butyl alcohol, propylene glycol and terpineol.
Preferred technical scheme is, the particle diameter of described frosted grain is below 5 microns.
It is preferred that technical scheme be that described frosted grain is the one in alumina powder, silicon dioxide powder.
Preferred technical scheme is, the number-average molecular weight of described Hydroxylated acrylic resin is 10000～20000.
Prior art is compared, and the combination liquid that the present invention peels off for Graphene is being shared with Hydroxylated acrylic resin by alcohols solvent, and they penetrate in graphite flake layer, and form hydrogen bond；In the process of mechanical lapping, the heat of generation or make hydrogen bond destroy by the mode of external heat, thus producing impulsive force to graphite linings；Compared to the combination liquid not having Hydroxylated acrylic resin, the hydrogen bond action in combination liquid is weak, and graphite flake layer can not produce the large impact power of orientation, and namely hydrogen bonding sites is played positioning action by the Hydroxylated acrylic resin of long-chain；Additionally, the frosted grain cooperative mechanical added in system is ground, and graphite flake layer can be produced higher shear action；This combination liquid cooperative mechanical is ground, it is possible to be effectively facilitated the stripping of Graphene.This combination liquid is being peeled off while Graphene, and not etching apparatus does not damage graphene-structured.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following example are only for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Embodiment 1
The present invention is a kind of combination liquid peeled off for Graphene, and the composition of this combination liquid includes: propylene glycol 100 parts by weight, Hydroxylated acrylic resin 3 parts by weight, alumina powder 2 parts by weight.The particle diameter of alumina powder is below 5 microns.The number-average molecular weight of Hydroxylated acrylic resin is 10000～20000.
Embodiment 2
The present invention is a kind of combination liquid peeled off for Graphene, and the composition of this combination liquid includes: ethanol 50 parts by weight, n-butyl alcohol 50 parts by weight, Hydroxylated acrylic resin 10 parts by weight, alumina powder 4 parts by weight.The particle diameter of alumina powder is below 5 microns.The number-average molecular weight of Hydroxylated acrylic resin is 10000～20000.
Embodiment 3
The present invention is a kind of combination liquid peeled off for Graphene, and the composition of this combination liquid includes: terpineol 100 parts by weight, Hydroxylated acrylic resin 20 parts by weight, silica 1 parts by weight.The particle diameter of silicon dioxide is below 5 microns.The number-average molecular weight of Hydroxylated acrylic resin is 10000～20000.
Embodiment 4
The present invention is a kind of combination liquid peeled off for Graphene, and the composition of this combination liquid includes: normal propyl alcohol 30 parts by weight, terpineol 30 parts by weight, Hydroxylated acrylic resin 15 parts by weight, silicon dioxide 5 parts by weight.The particle diameter of silicon dioxide is below 5 microns.The number-average molecular weight of Hydroxylated acrylic resin is 10000～20000.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. the combination liquid peeled off for Graphene, it is characterised in that the composition of this combination liquid includes:
Alcohols solvent 100 parts,
Hydroxylated acrylic resin 3～20 parts,
Frosted grain 1～5 part；
Wherein, each component is in its parts by weight.
2. the combination liquid peeled off for Graphene as claimed in claim 1, it is characterised in that described alcohols solvent is one or more in ethanol, normal propyl alcohol, n-butyl alcohol, propylene glycol and terpineol.
3. the combination liquid peeled off for Graphene as claimed in claim 1, it is characterised in that the particle diameter of described frosted grain is below 5 microns.
4. the combination liquid peeled off for Graphene as claimed in claim 3, it is characterised in that described frosted grain is the one in alumina powder, silicon dioxide powder.
5. the combination liquid peeled off for Graphene as claimed in claim 1, it is characterised in that the number-average molecular weight of described Hydroxylated acrylic resin is 10000～20000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705085.3A CN105712321A (en) | 2014-12-01 | 2014-12-01 | Composition liquid used for stripping graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705085.3A CN105712321A (en) | 2014-12-01 | 2014-12-01 | Composition liquid used for stripping graphene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105712321A true CN105712321A (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410705085.3A Pending CN105712321A (en) | 2014-12-01 | 2014-12-01 | Composition liquid used for stripping graphene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712321A (en) |
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2014
- 2014-12-01 CN CN201410705085.3A patent/CN105712321A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |