CN107572477A - Graphene/nano silver wire three-dimensional porous sponge composite - Google Patents
Graphene/nano silver wire three-dimensional porous sponge composite Download PDFInfo
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- CN107572477A CN107572477A CN201710836761.4A CN201710836761A CN107572477A CN 107572477 A CN107572477 A CN 107572477A CN 201710836761 A CN201710836761 A CN 201710836761A CN 107572477 A CN107572477 A CN 107572477A
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Abstract
The invention discloses a kind of graphene/nano silver wire three-dimensional porous sponge composite, the sponge that neopelex is treated passes through electrostatic interaction LBL self-assembly nano silver wire and graphene as carrier.The present invention guides the three-dimensional macro self assembly of nano silver wire and graphene using business sponge as template, prepares the three-dimensional macro nano structured unit assembly can in fields such as flexible electronic device, pressure sensor, energy storage devices with wide application prospect.
Description
Technical field
The present invention relates to a kind of graphene/nano silver wire three-dimensional porous sponge composite, belongs to field of nanocomposite materials.
Background technology
In past ten years, researcher is to the assembly research interest more and more higher of nano particle, and they are in nanometer
Substantial amounts of work has been done in terms of one-dimensional, two-dimentional, the three-dimensional self assembly and guide assembling of construction unit.Template is to prepare to receive
The most popular method of rice assembly, it had achieved fast development, but nano structured unit assembly conduct in past 10 years
Design of material and the new technology prepared, it is necessary to it can be accomplished scale production under current process technology and appointed condition, and
This is exactly the difficult point that current template method prepares Nanoscale assemblies.Therefore, also need to simplify assembling flow path, using cheap and easy to get
Mould material, the magnanimity technology of preparing of Nanoscale assemblies is developed, finally realize the practical application of Nanoscale assemblies.Chinese science skill
A series of work has been done in this respect by Yu Shuhong seminars of art university.The seminar is with business sponge cheap and easy to get with sponge
A series of unit assembly of nanostructureds is prepared for for template.They are prepared for gold/cerium dioxide nano by template of sponge
Line three-dimensional material（Using sponge as the preparation of carrier loaded gold/cerium dioxide nano line three-dimensional material and its in continuous-flow system
Situ reduces p-nitrophenol (English) [J] Science Bulletin, 2016,61 (09):700-705）；Made with sponge
For macroscopic three dimensional framework template, by simple nano pulp dip-coating means, make nano silver wire（AgNWs）In sponge framework template
Guide under, formed with dual-network structure AgNWs three-dimensional macro assemblies；Using nano pulp dipping process, with business
It is that template guides graphene oxide with polymeric sponge（GO）Three-dimensional assembling, prepare with micron order intercommunication pore space structure
Three-dimensional GO macroscopic views assembly, can obtain corresponding reduced graphene after HI acid reduction（RGO）Three-dimensional macro assembly；Commercially to gather
Compound sponge is template, by nano pulp dipping process, by hydrophobic titanium dioxide nano silicon particles（SiO2NPs）With poly- diformazan
Radical siloxane（PDMS）The mixture of rubber is coated on the skeleton surface of sponge, prepares porous hydrophobic lipophile material.（Base
The macroscopical Nanoscale assemblies preparation guided in sponge template and application study [D] China Science ＆ Technology University, 2016）.Shanghai is big
Learn Lee generation generation and use polyurethane（PU）Sponge carries out dip-coating modification by graphene, prepares super-hydrophobic super parent as matrix material
The polyurethane sponge oil absorption material of oil；In order to improve stability of the graphene in sponge surface, Silane coupling reagent KH-570 is utilized
Graphene is modified, then loaded to modified graphene on sponge by dip-coating method, is born so as to obtain modified graphene
The sponge of load.（The preparation of oleophilic drainage type sponge and film base water-oil separating material and its performance study [D] Shanghai University,
2016）.In addition, also have using sponge as matrix, assemble nanometer silver, zinc oxide, Fe3O4Particle, molybdenum disulfide, CNT, dioxy
Change the document report of the nano materials such as titanium（The system of the super-hydrophobic sponge of dimethyl silicone polymer/micro-nano silver/poly-dopamine modification
Standby and application [J] applied chemistries, 2015,32 (06):726-732；Oleophilic drainage type sponge and film base water-oil separating material
Preparation and its performance study [D] Shanghai University, 2016；The preparation of super hydrophobic polyurethane (PU) sponge and water-oil separating characteristic are ground
Study carefully [D] Harbin Institute of Technology, 2014；Preparation and the industry of sign [D] Harbin based on the super-hydrophobic sponge of diazonium chemistry are big
Learn, 2016；Artificial lens journal, 2017,46 (01):134-138；The preparation and oil absorbency research of magnetic response polyurethane sponge
[J] New Chemical Materials, 2017,45 (02):239-241；Polyurethane sponge carried titanium dioxide/graphene composite montmorillonoid
17 α of floating material Visible Light Induced Photocatalytic-ethinyl estradiol [J] Hohai University's journals (natural science edition), 2017,45 (02):
116-121；The preparation of super-hydrophobic super-oleophylic material and its water-oil separating performance research [D] Northeast Petroleum University, 2016；Super leaching
The preparation of profit water-oil separating material and its performance study [D] Jiangsu Universitys, 2016；Chinese invention patent
CN201510443105.9 polyurethane sponges load silver-colored graphene titanium dioxide nano-particle composite, preparation method and answered
With；Chinese invention patent CN201410170974.4 constructs the sponge material of zinc oxide fine structure modified polyurethane sponge surface
And preparation method thereof）.It is this from group but above-mentioned document relies primarily on the self assembly that dip-coating/dipping means realize nano material
Dress method carries randomness and uncontrollability.
The content of the invention
In view of the above problems, the present invention provides a kind of graphene/nano silver wire three-dimensional porous sponge composite.
The technical scheme is that：（1）Nano silver wire is configured to the 1-10g/L aqueous solution, so
1-10g/L Hyperbranched Polymer with Terminal Amido is added afterwards, it is anti-with deionized water and ethanol under normal temperature after at the uniform velocity stirring reaction 24h
After backwashing washs, Hyperbranched Polymer with Terminal Amido modification nano silver wire is obtained after drying；（2）After sponge is cleaned, square is cut into, is soaked
Stain 24h in the sodium dodecyl benzene sulfonate aqueous solution of mass fraction 1%, bath raio 1:10, vacuum drying after taking-up；（3）By end ammonia
Base dissaving polymer modification nano silver wire is configured to the 1-10g/L aqueous solution, then by end of the above-mentioned sponge impregnating at 80 DEG C
10-60min in the amino dissaving polymer modification nano silver wire aqueous solution, bath raio 1:10, rushed repeatedly with deionized water after taking-up
Wash, dry；Then by above-mentioned sponge impregnating in 80 DEG C, 1-10g/L graphene oxide water solution 10-60min, bath raio 1:
10, rinsed repeatedly with deionized water after taking-up, dry, one layer of graphene oxide/nano silver wire is so far self-assembled into sponge
Surface, then modify in nano silver wire and graphene oxide solution and repeat on 0-9 times in Hyperbranched Polymer with Terminal Amido successively
State operation, be finally placed in reducing agent and reduced, wash, filter, be dried in vacuo after to obtain graphene/nano silver wire three-dimensional more
Hole sponge composite.
AgNWs is synthesized using polyol process, and specific steps refer to document：Peng Yongyi, Xu Guojun, Dai Guozhang, Li Hong build
AgNWs polyol process preparation process condition research [J] material Leaders, 2015,29 (22):79-81+86；Summer Xingda, Yang Bing
Just, the hot method of Zhang Xiang, Zhou Conghua polyalcohols prepares AgNWs and its application [J] functional materials in transparent conductive film,
2016,47(05):5091-5095；Li Yiqun liquid phase polyol process controlledly synthesis metal AgNWs and its in nesa coating
Application [D] Lanzhou University, 2015；Ma Xiao, You Fangfang, Feng Jinyang, Zhao Xiujian polyol process prepare one-dimensional Ag nano wires
[J] artificial lens journals, 2014,43 (03):587-591；Guo Ruiping, Zheng Min, Zhang Haixia microwave radiation technology polyol process are fast
Speed prepares research [J] the Institutes Of Technology Of Taiyuan journal of Ag nano wires, 2013,44 (01):76-80；Chinese invention patent
CN201610804238.9；Chinese invention patent CN201710357029.9.
The synthesis of Hyperbranched Polymer with Terminal Amido refers to following open source literatures：Hyperbranched Polymer with Terminal Amido and its quaternary ammonium
The preparation of salt and performance [J] polymer material sciences and engineering, 2009,25 (8): 141-144；CN200710020794.8
A kind of super-branching reactive dye salt-free dyeing auxiliary；Coloration Technology, 2007, 123(6): 351-357；
AATCC Review, 2010, 10(6): 56-60；Biomacromolecules, 2010, 11(1): 245-251；
Chemical Research in Chinese Universities, 2005, 21(3): 345-354。
Compared with prior art, the advantage of the invention is that：Nano silver wire and graphite are guided using business sponge as template
The three-dimensional macro self assembly of alkene, received using the Hyperbranched Polymer with Terminal Amido of electronegative graphene oxide and positively charged modification silver
Electrostatic interaction between rice noodles prepares the three-dimensional can in field of photoelectric devices with wide application prospect as film forming motive force
Macroscopic nanostructured unit assembly.
Embodiment
The invention will be further elucidated with reference to specific embodiments.
Embodiment 1
（1）Nano silver wire is configured to the 1g/L aqueous solution, then addition 1g/L Hyperbranched Polymer with Terminal Amido, it is even under normal temperature
After fast stirring reaction 24h, washed repeatedly with deionized water and ethanol, dry after obtain Hyperbranched Polymer with Terminal Amido modification silver receive
Rice noodles；（2）After sponge is cleaned, square is cut into, is immersed in the sodium dodecyl benzene sulfonate aqueous solution of mass fraction 1%
24h, bath raio 1:10, vacuum drying after taking-up；（3）Hyperbranched Polymer with Terminal Amido modification nano silver wire is configured to 1g/L water
Solution, then 10min, bath in 80 DEG C of the Hyperbranched Polymer with Terminal Amido modification nano silver wire aqueous solution by above-mentioned sponge impregnating
Than 1:10, rinsed, dried repeatedly with deionized water after taking-up；Then by above-mentioned sponge impregnating in 80 DEG C, 1g/L graphite oxide
10min in aqueous solution, bath raio 1:10, rinsed repeatedly with deionized water after taking-up, dry, be subsequently placed in 90 in hydrazine hydrate solution
DEG C reductase 12 h, washing, filter, obtain graphene/nano silver wire three-dimensional porous sponge composite after vacuum drying.
Embodiment 2
（1）Nano silver wire is configured to the 5g/L aqueous solution, then addition 5g/L Hyperbranched Polymer with Terminal Amido, it is even under normal temperature
After fast stirring reaction 24h, washed repeatedly with deionized water and ethanol, dry after obtain Hyperbranched Polymer with Terminal Amido modification silver receive
Rice noodles；（2）After sponge is cleaned, square is cut into, is immersed in the sodium dodecyl benzene sulfonate aqueous solution of mass fraction 1%
24h, bath raio 1:10, vacuum drying after taking-up；（3）Hyperbranched Polymer with Terminal Amido modification nano silver wire is configured to 5g/L water
Solution, then 30min, bath in 80 DEG C of the Hyperbranched Polymer with Terminal Amido modification nano silver wire aqueous solution by above-mentioned sponge impregnating
Than 1:10, rinsed, dried repeatedly with deionized water after taking-up；Then by above-mentioned sponge impregnating in 80 DEG C, 5g/L graphite oxide
30min in aqueous solution, bath raio 1:10, rinsed, dried, so far by one layer of graphite oxide repeatedly with deionized water after taking-up
Alkene/nano silver wire self-assembles to the surface of sponge, then modifies nano silver wire and oxidation in Hyperbranched Polymer with Terminal Amido successively
Aforesaid operations are repeated 2 times in graphene solution, 90 DEG C of reduction 12h in sodium citrate is subsequently placed in, washing, filters, vacuum drying
After obtain graphene/nano silver wire three-dimensional porous sponge composite.
Embodiment 3
（1）Nano silver wire is configured to the 10g/L aqueous solution, then addition 10g/L Hyperbranched Polymer with Terminal Amido, under normal temperature
After at the uniform velocity stirring reaction 24h, washed repeatedly with deionized water and ethanol, Hyperbranched Polymer with Terminal Amido modification silver is obtained after drying
Nano wire；（2）After sponge is cleaned, square is cut into, is immersed in the sodium dodecyl benzene sulfonate aqueous solution of mass fraction 1%
24h, bath raio 1:10, vacuum drying after taking-up；（3）Hyperbranched Polymer with Terminal Amido modification nano silver wire is configured to 10g/L's
The aqueous solution, Hyperbranched Polymer with Terminal Amido of the above-mentioned sponge impregnating at 80 DEG C is then modified into 60min in the nano silver wire aqueous solution,
Bath raio 1:10, rinsed, dried repeatedly with deionized water after taking-up；Then by above-mentioned sponge impregnating in 80 DEG C, 10g/L oxidation stone
60min in black aqueous solution, bath raio 1:10, rinsed, dried, so far by one layer of graphite oxide repeatedly with deionized water after taking-up
Alkene/nano silver wire self-assembles to the surface of sponge, then modifies nano silver wire and oxidation in Hyperbranched Polymer with Terminal Amido successively
Aforesaid operations are repeated 7 times in graphene solution, 60 DEG C of reduction 5h in sodium borohydride is subsequently placed in, washing, filters, after vacuum drying
Obtain graphene/nano silver wire three-dimensional porous sponge composite.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.Here all embodiments can not be exhaustive.It is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is amplified out still in protection scope of the present invention.
Claims (4)
1. the preparation method of graphene/nano silver wire three-dimensional porous sponge composite, it is characterised in that：
（1）Nano silver wire is configured to the 1-10g/L aqueous solution, then adds 1-10g/L Hyperbranched Polymer with Terminal Amido, often
Under temperature after at the uniform velocity stirring reaction 24h, washed repeatedly with deionized water and ethanol, dry after obtain Hyperbranched Polymer with Terminal Amido and repair
Adorn nano silver wire；（2）After sponge is cleaned, square is cut into, the neopelex for being immersed in mass fraction 1% is water-soluble
24h in liquid, bath raio 1:10, vacuum drying after taking-up；（3）Hyperbranched Polymer with Terminal Amido modification nano silver wire is configured to 1-
The 10g/L aqueous solution, Hyperbranched Polymer with Terminal Amido of the above-mentioned sponge impregnating at 80 DEG C is then modified into the nano silver wire aqueous solution
Middle 10-60min, bath raio 1:10, rinsed, dried repeatedly with deionized water after taking-up；Then by above-mentioned sponge impregnating in 80 DEG C, 1-
10-60min in 10g/L graphene oxide water solution, bath raio 1:10, rinsed, dried, so far repeatedly with deionized water after taking-up
One layer of graphene oxide/nano silver wire has been self-assembled to the surface of sponge, then repaiied successively in Hyperbranched Polymer with Terminal Amido
Adorn and 0-9 aforesaid operations are repeated in nano silver wire and graphene oxide solution, be finally placed in reducing agent and reduced, washing,
Filter, obtain graphene/nano silver wire three-dimensional porous sponge composite after vacuum drying.
2. the preparation method of graphene according to claim 1/nano silver wire three-dimensional porous sponge composite, its feature
It is, the nano silver wire is synthesized using polyol process.
3. the preparation method of graphene according to claim 1/nano silver wire three-dimensional porous sponge composite, its feature
It is, the volume ratio of the Hyperbranched Polymer with Terminal Amido and the nano silver wire aqueous solution is 1:1-1:10.
4. the graphene obtained by claim 1 preparation method/nano silver wire three-dimensional porous sponge composite.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426144A (en) * | 2019-08-16 | 2019-11-08 | 吉林大学 | Based on polypyrrole/graphene oxide composite material manufacture piezoresistance sensor method |
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| CN104371714A (en) * | 2014-11-28 | 2015-02-25 | 赵兵 | Molybdenum trioxide-graphene oxide composite material and preparation method thereof |
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| CN104371714A (en) * | 2014-11-28 | 2015-02-25 | 赵兵 | Molybdenum trioxide-graphene oxide composite material and preparation method thereof |
| CN104449714A (en) * | 2014-11-28 | 2015-03-25 | 赵兵 | UCNP (up-conversion nanoparticle)-graphene oxide composite material and preparation method thereof |
| CN105170132A (en) * | 2015-07-24 | 2015-12-23 | 河海大学 | Polyurethane foam supported liver/graphene/ titanium dioxide nano particle composite material, preparation method thereof and application thereof |
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| CHAO WU, LIJUN FANG, XINGYI HUANG, AND PINGKAI JIANG.: "Three-dimensional highly conductive graphene-silver nanowire hybrid foams for flexible and stretchable conductors.", 《ACS APPL MATER INTERFACES》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110426144A (en) * | 2019-08-16 | 2019-11-08 | 吉林大学 | Based on polypyrrole/graphene oxide composite material manufacture piezoresistance sensor method |
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