CN109368629A - A kind of graphene dispersion system and preparation method thereof - Google Patents
A kind of graphene dispersion system and preparation method thereof Download PDFInfo
- Publication number
- CN109368629A CN109368629A CN201811466110.1A CN201811466110A CN109368629A CN 109368629 A CN109368629 A CN 109368629A CN 201811466110 A CN201811466110 A CN 201811466110A CN 109368629 A CN109368629 A CN 109368629A
- Authority
- CN
- China
- Prior art keywords
- graphene
- dispersion system
- graphene dispersion
- dispersing agent
- mass fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
Abstract
The present invention relates to technical field of macromolecules more particularly to a kind of graphene dispersion system and preparation method thereof.The present invention provides a kind of graphene dispersion systems, including dispersing agent and the graphene being dispersed in the dispersing agent；The dispersing agent includes anion active agent and/or nonionic agent.The present invention also provides a kind of preparation methods of graphene dispersion system, comprising: step 1: by graphene predrying；Step 2: configuration high quality score dispersing agent, the concentration of the high quality score dispersing agent are 0.1g/L；Step 3: the graphene being added in the high quality score dispersing agent and obtains mixed solution；Step 4: by the mixed solution ultrasonic disperse and standing.A kind of graphene dispersion system provided by the invention and preparation method thereof, for solving the technical issues of cannot improving the dispersion performance of graphene aqueous suspension by surfactant-modified in the prior art.
Description
Technical field
The present invention relates to technical field of macromolecules more particularly to a kind of graphene dispersion system and preparation method thereof.
Background technique
Carbon atom in graphene is with sp2Hydridization form, and the covalent bond and other carbon atoms that are 120 ° with angle connect
Connect the hexagon stratiform honeycomb to be formed.On the direction perpendicular to layer plane, each carbon atom there are one pz track, because
This can form the big pi bond of delocalization through holostrome.The ligancy of each carbon atom is 3 in layer, and the bond distance between adjacent carbon atom is about
For 0.142nm, the dilute thickness of mono-layer graphite only 0.35nm.In addition to special monoatomic layer structure, graphene also has various excellent
Different performance:.Single-layer graphene has the high grade of transparency (about 97.7%), and specific surface area calculated value can reach 2630m2/ g,
Possess excellent mechanical property, brilliant electric property simultaneously.Its forbidden bandwidth is almost nil, carrier mobility is high, good
Thermal property.Furthermore graphene also has fractional quantum hall effect, quantum Hall ferromagnetism and zero carrier mass fraction
The series of characteristics such as the minimum electron conductivity under the limit.In conclusion graphene is with numerous excellent performances and more
Unique structure is a kind of ideal second phase material.But a defect of graphene is exactly its dispersibility in aqueous solution
Poor, the single-layer graphene for being prepared on a large scale surfactant-free in aqueous solution is always the unsolved problem of material circle, by
In the huge specific surface area of graphene and as non-polar species, so that it is difficult to enter into water with extremely strong hydrophobicity
It property solution and is evenly dispersed in water.The surfactant modified graphene hydrophobic grouping of someone so that its have it is certain
Wetability and hydrophily, or graphene suspension body is directly prepared, it is prepared into suspension preservation.Currently, for dispersing stone
There are mainly three types of the dilute systems of ink: aqueous surfactant solution, organic solvent, super acid.Above-mentioned three kinds of system electric conductivity and it can make
Therefore cyanide-free plating bath failure cannot improve point of graphene aqueous suspension by surfactant-modified in the prior art
Scattered performance becomes those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The present invention provides a kind of graphene dispersion systems and preparation method thereof, cannot pass through in the prior art for solving
The technical issues of surfactant-modified dispersion performance to improve graphene aqueous suspension.
The present invention provides a kind of graphene dispersion systems, including dispersing agent and are dispersed in the dispersing agent
Graphene；
The dispersing agent includes anion active agent and/or nonionic agent.
Preferably, the anion active agent includes sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sodium sulfate, 12
One of sodium alkyl benzene sulfonate and sodium lignin sulfonate are a variety of.
Preferably, the mass fraction of the lauryl sodium sulfate is 0.6~3%.
Preferably, the mass fraction of the neopelex is 0.8~3%.
Preferably, the mass fraction of the fatty alcohol-ether sodium sulfate is 0.8~3%.
Preferably, the nonionic agent include polyoxethylene octylphenyl phenol ether -10, Tween-20, Tween-80 and
One of polyvinylpyrrolidone is a variety of.
Preferably, the mass fraction of polyoxethylene octylphenyl phenol ether -10 is 0.4~2%；The mass fraction of the TW-20
It is 0.8~3%；The mass fraction of the TW-80 is 1~3%；The mass fraction of the PVP is 1~3%.
The present invention also provides a kind of preparation method of graphene dispersion system, including the following steps:
Step 1: by graphene predrying；
Step 2: configuration high quality score dispersing agent, the concentration of the high quality score dispersing agent are 0.1g/L；
Step 3: the graphene being added in the high quality score dispersing agent and obtains mixed solution；
Step 4: by the mixed solution ultrasonic disperse and standing.
Preferably, the pre-dried time is 1h.
Preferably, the time of ultrasonic disperse described in step 4 is 15min.
Dispersion provided in an embodiment of the present invention and preparation method thereof, by having collaboration between different surfaces activating agent
The characteristic of effect, improving surfactant properties and can reduce the application cost of surfactant, and reduce surface-active
Destruction of the agent to ecological environment, polynary surfactant compound have realistic meaning.Some researches show that work as ionic surfactant
When nonionic surface active agent being added in agent, cmc (critical micelle concentration value) can be decreased obviously, and surface tension can also decline,
Surface-active increases.So can be obtained when by carrying out single, binary or Recompounded multielement to the surfactant after preliminary screening
Better dispersion stabilization.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is single surfactant-dispersed absorbance schematic diagram provided by the invention；
Fig. 2 is the first wetability schematic diagram of single surfactant provided by the invention；
Fig. 3 is the second wetability schematic diagram of single surfactant provided by the invention.
Specific embodiment
The embodiment of the invention provides a kind of graphene dispersion systems and preparation method thereof, for solving in the prior art not
The technical issues of dispersion performance of graphene aqueous suspension can be improved by surfactant-modified.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Embodiment 1
Dispersing agent will affect the electric conductivity of plating solution as a kind of additive, and the parameters such as viscosity influence plating solution performance.Therefore
Need to control its amount, so that controlling the amount of dispersing agent while it plays a role, not only having saved cost but also having and is good
Effect, wherein the results are shown in Table 1 for the initial screening of single surfactant, single surfactant-dispersed absorbance size is such as
Shown in Fig. 1, wetability is as shown in Figures 2 and 3.From the figure, it can be seen that surfactant additive amount before percent 1, is inhaled
The size of luminosity increases sharply with the increase of surfactant concentration, concentration reach percent 2 or it is higher when, extinction
Angle value tends towards stability.This is because in a certain amount of graphene suspension, the position of the adsorbable surfactant of graphene surface
It sets and is limited, therefore, when surfactant reaches a certain concentration, not can be further improved point of absorbance and graphene
Property is dissipated, because graphene surface has reached saturation.The quality of wetability can be intuitively from Fig. 2 and Fig. 3.Here wetting
Property refer to graphene due to huge specific surface area and it be apolar substance, water is difficult to make as polar solvent
It is contained therein with obtaining graphene stable and uniform, as shown in Figure 2.Suitable surfactant can utilize its hydrophobic grouping and stone
Black alkene combines, and the demonstration of other end hydrophilic radical is made it possible to smoothly enter in water outside, stable dispersion reaches profit
Wet effect, as shown in Figure 3.
The initial screening result of the single surfactant of table 1
Embodiment 2
Due to having synergistic effect between different surfaces activating agent, in order to improve surfactant properties, it is living to reduce surface
Property agent application cost, and reduce destruction of the surfactant to ecological environment, dual surfactant compounding has reality
Meaning.Some researches show that, when nonionic surface active agent is added in ionic surfactant, cmc value can be decreased obviously,
Surface tension can also decline, and surface-active increases.So by carrying out binary built to the surfactant after preliminary screening,
Better dispersion stabilization is obtained, the results are shown in Table 2:
2 dual surfactant of table compounds result
According to the size of absorbance and Zeta potential value is referred to, performance preferably binary built combination is respectively as follows: AES+
TW80、AES+TW20、SDS+TW20、SDS+PVP、SDBS+TW20、SDBS+PVP、SDBS+OP10、SDBS+TW80。
Embodiment 3
The more excellent result that binary built is obtained is further combined to obtain Recompounded multielement surfactant, polynary multiple
With orthogonal result as shown in table 3 to table 6, the orthogonal preferred result of polynary surfactant is as shown in table 7:
More than 3 yuan of surfactant compound results of table
More than 4 yuan of surfactant compound results of table
More than 5 yuan of surfactant compound results of table
More than 6 yuan of surfactant compound results of table
More than 7 yuan of surfactants of table preferably compound result
The Zeta potential that summary analysis 3 measures after the absorbance and dilution of graphene water slurry into table 7
As a result, obtaining dispersion part Experiment conclusion, result is preferably compounded are as follows: SDBS (0.6%)+TW20 (1.5%)+PVP (1%).
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of graphene dispersion system, which is characterized in that including dispersing agent and the stone being dispersed in the dispersing agent
Black alkene；
The dispersing agent includes anion active agent and/or nonionic agent.
2. a kind of graphene dispersion system according to claim 1, which is characterized in that the anion active agent includes rouge
One of fat alcohol polyethenoxy ether sodium sulfate, dodecyl sodium sulfate, neopelex and sodium lignin sulfonate or
It is a variety of.
3. a kind of graphene dispersion system according to claim 2, which is characterized in that the matter of the lauryl sodium sulfate
Measuring score is 0.6~3%.
4. a kind of graphene dispersion system according to claim 2, which is characterized in that the neopelex
Mass fraction is 0.8~3%.
5. a kind of graphene dispersion system according to claim 2, which is characterized in that the matter of the fatty alcohol-ether sodium sulfate
Measuring score is 0.8~3%.
6. a kind of graphene dispersion system according to claim 1, which is characterized in that the nonionic agent includes
One of polyoxethylene octylphenyl phenol ether -10, Tween-20, Tween-80 and polyvinylpyrrolidone are a variety of.
7. a kind of graphene dispersion system according to claim 6, which is characterized in that polyoxethylene octylphenyl phenol ether -10
Mass fraction be 0.4~2%；The mass fraction of the TW-20 is 0.8~3%；The mass fraction of the TW-80 be 1~
3%；The mass fraction of the PVP is 1~3%.
8. a kind of preparation method of graphene dispersion system, which is characterized in that including the following steps:
Step 1: by graphene predrying；
Step 2: configuration high quality score dispersing agent, the concentration of the high quality score dispersing agent are 0.1g/L；
Step 3: the graphene being added in the high quality score dispersing agent and obtains mixed solution；
Step 4: by the mixed solution ultrasonic disperse and standing.
9. a kind of graphene dispersion system according to claim 4, which is characterized in that the pre-dried time is 1h.
10. a kind of graphene dispersion system according to claim 4, which is characterized in that ultrasonic disperse described in step 4
Time is 15min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466110.1A CN109368629A (en) | 2018-12-03 | 2018-12-03 | A kind of graphene dispersion system and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466110.1A CN109368629A (en) | 2018-12-03 | 2018-12-03 | A kind of graphene dispersion system and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109368629A true CN109368629A (en) | 2019-02-22 |
Family
ID=65375050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811466110.1A Pending CN109368629A (en) | 2018-12-03 | 2018-12-03 | A kind of graphene dispersion system and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109368629A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498634A (en) * | 2019-08-02 | 2019-11-26 | 广西科技大学 | A kind of graphene aqueous dispersions, graphene concrete and preparation method thereof |
| CN113105791A (en) * | 2021-04-02 | 2021-07-13 | 河北晨阳工贸集团有限公司 | Graphene modified aqueous thick elastic coating and preparation method thereof |
| CN113265235A (en) * | 2020-02-14 | 2021-08-17 | 中国石油天然气股份有限公司 | Modified graphene oxide hybrid guar gum fracturing fluid system and preparation method thereof |
| CN113584538A (en) * | 2021-06-16 | 2021-11-02 | 南京清鹿新材料科技有限公司 | Graphene-nicotinic acid silver plating solution and preparation method thereof |
| WO2022206926A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Composite dispersant, preparation method therefor, mixed electroplating solution, and preparation method therefor |
| WO2022206927A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method, and mixed electroplating solution and preparation method |
| WO2022206923A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method, and mixed electroplating solution and preparation method |
| CN115182022A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN115182019A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN115182020A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant, preparation method thereof, mixed electroplating solution and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464315A (en) * | 2010-11-18 | 2012-05-23 | 海洋王照明科技股份有限公司 | Preparation method of graphene |
| US20140225026A1 (en) * | 2013-02-13 | 2014-08-14 | Basf Se | Polyamide composites containing graphene |
| CN104211053A (en) * | 2014-09-04 | 2014-12-17 | 济宁利特纳米技术有限责任公司 | Preparation method of modified graphene aqueous dispersion |
| CN104495826A (en) * | 2014-12-25 | 2015-04-08 | 北京航空航天大学 | Single-layer graphene dispersion liquid and preparation method thereof |
| CN106902701A (en) * | 2015-12-21 | 2017-06-30 | 天津瑞赛可新材料科技有限公司 | A kind of graphene dispersion agent |
| CN106903324A (en) * | 2015-12-22 | 2017-06-30 | 湖南利德电子浆料股份有限公司 | A kind of preparation method of Graphene-nano silver dispersion |
| CN108250821A (en) * | 2018-01-11 | 2018-07-06 | 绍兴文理学院 | Graphene dispersion method for graphene-based anticorrosive paint |
| CN108486863A (en) * | 2018-04-24 | 2018-09-04 | 济南圣泉集团股份有限公司 | A kind of grapheme material modified fabric of antistatic and preparation method thereof |
-
2018
- 2018-12-03 CN CN201811466110.1A patent/CN109368629A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464315A (en) * | 2010-11-18 | 2012-05-23 | 海洋王照明科技股份有限公司 | Preparation method of graphene |
| US20140225026A1 (en) * | 2013-02-13 | 2014-08-14 | Basf Se | Polyamide composites containing graphene |
| CN104211053A (en) * | 2014-09-04 | 2014-12-17 | 济宁利特纳米技术有限责任公司 | Preparation method of modified graphene aqueous dispersion |
| CN104495826A (en) * | 2014-12-25 | 2015-04-08 | 北京航空航天大学 | Single-layer graphene dispersion liquid and preparation method thereof |
| CN106902701A (en) * | 2015-12-21 | 2017-06-30 | 天津瑞赛可新材料科技有限公司 | A kind of graphene dispersion agent |
| CN106903324A (en) * | 2015-12-22 | 2017-06-30 | 湖南利德电子浆料股份有限公司 | A kind of preparation method of Graphene-nano silver dispersion |
| CN108250821A (en) * | 2018-01-11 | 2018-07-06 | 绍兴文理学院 | Graphene dispersion method for graphene-based anticorrosive paint |
| CN108486863A (en) * | 2018-04-24 | 2018-09-04 | 济南圣泉集团股份有限公司 | A kind of grapheme material modified fabric of antistatic and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 侯海云: "《表面活性剂物理化学基础》", 31 August 2014, 西安交通大学出版社 * |
| 张幼珠等: "《纺织应用化学》", 31 August 2009, 东华大学出版社 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498634A (en) * | 2019-08-02 | 2019-11-26 | 广西科技大学 | A kind of graphene aqueous dispersions, graphene concrete and preparation method thereof |
| CN113265235A (en) * | 2020-02-14 | 2021-08-17 | 中国石油天然气股份有限公司 | Modified graphene oxide hybrid guar gum fracturing fluid system and preparation method thereof |
| CN115182020A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant, preparation method thereof, mixed electroplating solution and preparation method thereof |
| WO2022206926A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Composite dispersant, preparation method therefor, mixed electroplating solution, and preparation method therefor |
| WO2022206927A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method, and mixed electroplating solution and preparation method |
| WO2022206923A1 (en) * | 2021-04-01 | 2022-10-06 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method, and mixed electroplating solution and preparation method |
| CN115182022A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN115182019A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN115182023A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant, preparation method thereof, mixed electroplating solution and preparation method thereof |
| CN115182018A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN115182017A (en) * | 2021-04-01 | 2022-10-14 | 浙江正泰电器股份有限公司 | Compound dispersant and preparation method thereof, and mixed electroplating solution and preparation method thereof |
| CN113105791A (en) * | 2021-04-02 | 2021-07-13 | 河北晨阳工贸集团有限公司 | Graphene modified aqueous thick elastic coating and preparation method thereof |
| CN113584538A (en) * | 2021-06-16 | 2021-11-02 | 南京清鹿新材料科技有限公司 | Graphene-nicotinic acid silver plating solution and preparation method thereof |
| CN113584538B (en) * | 2021-06-16 | 2023-03-14 | 南京清鹿新材料科技有限公司 | Graphene-nicotinic acid silver plating solution and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109368629A (en) | A kind of graphene dispersion system and preparation method thereof | |
| CN105536585B (en) | A kind of carbon nano tube dispersion method | |
| CN105349114A (en) | Boron nitride doped composite material and preparation method and application thereof | |
| CN106328256B (en) | A kind of lithium ion battery electrocondution slurry and preparation method thereof | |
| CN103740252B (en) | A kind of antistatic polyurethane water paint and preparation method thereof | |
| EP1623437A1 (en) | Conductive carbon nanotube-polymer composite | |
| CN106117649A (en) | A kind of modified Nano composite rubber material and preparation thereof | |
| JP2013201117A5 (en) | ||
| CN106602076A (en) | Carbon-coated aluminum foil, preparation method and application | |
| CN105778571A (en) | Graphene composite slurry and preparation method thereof | |
| Yang et al. | Salt-and pH-resistant gold nanoparticles decorated with mixed-charge zwitterionic ligands, and their pH-induced concentration behavior | |
| CN105861200A (en) | Water-solubility washing agent and preparation method thereof | |
| TW201716322A (en) | Graphene composite material and preparation method thereof | |
| CN102010642B (en) | Protective agent for radiator fan | |
| US10535444B2 (en) | Composite carbon material and method of preparing the same | |
| JP5403738B2 (en) | CNT dispersant and CNT dispersion using the same | |
| CN108795409A (en) | A kind of fluorescence gold nano cluster aggregation and preparation method thereof | |
| CN107010614A (en) | Aqueous liquid dispersion of carbon nanomaterial and preparation method thereof | |
| CN105788874A (en) | Composite graphene paper and preparation method thereof | |
| JP2021057560A5 (en) | ||
| CN110776603A (en) | Preparation method of polycarboxylic acid mud-resistant water reducer synthesized by sodium lignosulfonate | |
| KR101121203B1 (en) | Dispersant for high-concentrated carbon nanotube solution and composition comprising the same | |
| CN106082173B (en) | A kind of carbon nano tube dispersion method | |
| KR20140121663A (en) | Heat discharging paint and sheet using graphene and method for manufacturing the same | |
| KR20150057168A (en) | Foam stabilizer for foam decontamination agents and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |
|
| RJ01 | Rejection of invention patent application after publication |