CN105642903B - The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified - Google Patents
The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified Download PDFInfo
- Publication number
- CN105642903B CN105642903B CN201610114399.5A CN201610114399A CN105642903B CN 105642903 B CN105642903 B CN 105642903B CN 201610114399 A CN201610114399 A CN 201610114399A CN 105642903 B CN105642903 B CN 105642903B
- Authority
- CN
- China
- Prior art keywords
- nano wire
- nickel
- nickel nano
- dispersing
- aqueous solution
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
Abstract
The invention provides the process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified, and belongs to the field of dispersions of nickel nano wire, and the process for dispersing has following steps：Configure nickel nanowire surface processing solution；Nickel nano wire is added constant temperature stirring is carried out in surface processing solution, thus remove removing oxide layer；After rinsing nickel nano wire to neutrality repeatedly, then prepare the aqueous solution of nickel nano wire；Proper amount of surfactant is added in the nickel nano wire aqueous solution, and carries out constant temperature stirring.The present invention is to belong to the cetyl trimethylammonium bromide of cationic surfactant as dispersant, easily combined with nickel nano wire of the surface in neutral aqueous solution with negative electricity, so as to greatly reduce the surface energy of nickel nano wire, enable relatively stable dispersed of nickel nano wire, thus solve the problems, such as that nickel nano wire is easy to reunite or wound in the aqueous solution；The process for dispersing is soft and simple, convenient, cost is low, effect is good, has broad application prospects.
Description
Technical field
The invention belongs to the field of dispersions of nickel nano wire, and in particular to what a kind of nickel nanowire surface non-covalent modification was modified
Process for dispersing.
Technical background
For building or built great concrete structure engineering and infrastructure (such as high-rise building, bridge spanning the sea, big
Type production platform and nuclear power station etc.) there is an urgent need to take effective monitoring means to evaluate its health status, to repair in time
Damaged with control, it is ensured that reliability, security and the durability of engineering.Build great concrete structure engineering and infrastructure
Health monitoring systems, need high-performance, long-life and stable smart sensor.It can pass through from cement-base composite material is perceived
Macroscopical electric property change efficient diagnosis is suitable for sensing element with monitoring stress, strain or the damage of concrete structure.
Compared with existing other sensing elements, there is natural compatibility from cement-base composite material and concrete structure is perceived, use
There is unique advantage with monitoring in the Gernral Check-up of concrete structure, at the same time, it also has high sensitivity, good endurance etc. many
Advantage.
Nevertheless, due to preparing the self-defect from the conductive filler for perceiving cement-base composite material, such as easily it is passivated, leads
It is electrically bad, be difficult to it is scattered etc. so that it is existing from perceive cement-base composite material generally face uniformity and repeatability it is poor,
Combination property (including mechanical property, electric conductivity and self-sensing properties etc.) is not high, limits its application.Therefore, there is an urgent need to research and develop
Other new high quality fillers and its certainly perception cement-base composite material preparation method.
Nickel nano wire has good alkali resistance corrosive power, and has fabulous electric conductivity and excellent mechanical property, is one
Individual preparation has development and application prospect well from the potential high quality filler for perceiving cement-base composite material.But nickel nanometer
Line specific surface area is big, and surface energy is high, and non-thermodynamics stable state is between nano wire, easily occurs to reunite or winds.Based on this,
Need first solve scattering problem by the use of it as filler, but still make nickel nano wire perfect in aqueous without good method at present
It is scattered.
The content of the invention
Goal of the invention：It is an object of the invention to provide the scattered side that a kind of nickel nanowire surface non-covalent modification is modified
Method, thus solve the problems, such as that nickel nano wire easily occurs to reunite or wind in aqueous.
Technical scheme：For achieving the above object, the present invention adopts the following technical scheme that：
The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified, including following steps：
1) nickel nanowire surface processing solution is configured；
2) nickel nano wire is added and constant temperature stirring is carried out in surface processing solution, thus removed removing oxide layer, treated
Nickel nano wire；
3) after rinsing treated nickel nano wire to neutrality repeatedly, then the aqueous solution of nickel nano wire is prepared；
4) surfactant is added in the aqueous solution of nickel nano wire, and carries out constant temperature stirring, that is, obtains polymolecularity
The nickel nano wire aqueous solution.
In step 1), described nickel nanowire surface processing solution is 0.20~0.30mol/L sulfuric acid solution.
In step 2), the stirring of described constant temperature refers to that at 50~70 DEG C of temperature the mechanical agitation time is 4~5min, is stirred
It is 400~800rpm to mix speed.
In step 3), the aqueous solution mass concentration of the nickel nano wire of described preparation should be less than 0.08%.
In step 4), described surfactant is the cetyl trimethylammonium bromide of mass concentration 0.5~1.0%.
In step 4), the stirring of described constant temperature is at 20~40 DEG C of temperature, and the mechanical agitation time is 10~15min, is stirred
It is 400~800rpm to mix speed.
Beneficial effect：Compared with prior art, the process for dispersing that nickel nanowire surface non-covalent modification of the invention is modified,
To belong to the cetyl trimethylammonium bromide of cationic surfactant type as dispersant, easily with the surface in neutral aqueous solution
Nickel nano wire with negative electricity combines, so as to greatly reduce the surface energy of nickel nano wire so that nickel nano wire can be relatively stable
It is dispersed, thus solve the problems, such as that nickel nano wire is easy to reunite or wound in the aqueous solution；In addition, the process for dispersing is soft,
Avoid the ultrasonic disperse generally used now, high-power machinery disperses easily to make nickel nano wire fracture, and can destroy nickel nano wire
The defects of structure is with reducing nano wire performance；This method is simple, convenient, cost is low, effect is good, has wide answer
Use prospect.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention, after the present invention has been read, various equivalences of the those skilled in the art to the present invention
The modification of form falls within the application appended claims limited range.
It should be noted that in the examples below that, the dispersion effect of nickel nano wire be with the standing sedimentation time and by it is ultraviolet-
It can be seen that the luminosity measurement obtained absorbance of examination characterizes.Wherein, the standing sedimentation time is longer, the more high then dispersion effect of absorbance
Better.
Embodiment 1
(1) configuration surface processing solution：0.2mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 50 DEG C, mechanical agitation 4min, stir speed (S.S.) is
400rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.05% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.5%, and at 20 DEG C, stir 10min, stir speed (S.S.) 400rpm.
At room temperature, test is dispersed through the nickel nanowire suspended liquid sedimentation time of processing and 1h absorbance, its value difference
For the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 13min and 0.631, with equal conditions, its sedimentation time
44.44% is extended, absorbance improves 10.31%, and in other words dispersion effect is improved.
Embodiment 2
(1) configuration surface processing solution：0.25mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 60 DEG C, mechanical agitation 5min, stir speed (S.S.) is
500rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.05% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.75%, and at 30 DEG C, stir 15min, stir speed (S.S.) 500rpm.
At room temperature, test is dispersed through the sedimentation time of the nanowire suspended liquid of nickel and the 1h absorbance of processing, its value point
Not Wei the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 19min and 0.693, with equal conditions, when it is settled
Between extend 111%, absorbance improves 21.15%, and in other words dispersion effect is improved.
Embodiment 3
(1) configuration surface processing solution：0.3mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 70 DEG C, mechanical agitation 5min, stir speed (S.S.) is
600rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.05% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.1%, and at 40 DEG C, stir 15min, stir speed (S.S.) 600rpm.
At room temperature, test is dispersed through the sedimentation time of the nanowire suspended liquid of nickel and the 1h absorbance of processing, its value point
Not Wei the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 22min and 0.711, with equal conditions, when it is settled
Between extend 144%, absorbance improves 24.3%, and in other words dispersion effect is improved.
Embodiment 4
(1) configuration surface processing solution：0.25mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 50 DEG C, mechanical agitation 5min, stir speed (S.S.) is
700rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.04% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.08%, and at 30 DEG C, stir 10min, stir speed (S.S.) 700rpm.
At room temperature, test is dispersed through the sedimentation time of the nanowire suspended liquid of nickel and the 1h absorbance of processing, its value point
Not Wei the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 24min and 0.680, with equal conditions, when it is settled
Between extend 120%, absorbance improves 23.12%, and in other words dispersion effect is improved.
Embodiment 5
(1) configuration surface processing solution：0.25mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 50 DEG C, mechanical agitation 4min, stir speed (S.S.) is
800rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.06% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.12%, and at 30 DEG C, stir 10min, stir speed (S.S.) 800rpm.
At room temperature, test is dispersed through the sedimentation time of the nanowire suspended liquid of nickel and the 1h absorbance of processing, its value point
Not Wei the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 18min and 0.682, with equal conditions, when it is settled
Between extend 94%, absorbance improves 20.37%, and in other words dispersion effect is improved.
Embodiment 6
(1) configuration surface processing solution：0.25mol/L sulfuric acid solution；
(2) nickel nano wire is placed in surface processing solution, at 50 DEG C, mechanical agitation 4min, stir speed (S.S.) is
500rpm；
(3) after rinsing nickel nano wire to neutrality repeatedly, the nickel nano wire aqueous solution that mass concentration is 0.07% is prepared；
(4) in the nano wire aqueous solution prepared, cetyl trimethylammonium bromide is added, makes its mass concentration be
0.14%, and at 20 DEG C, stir 15min, stir speed (S.S.) 500rpm.
At room temperature, test is dispersed through the sedimentation time of the nanowire suspended liquid of nickel and the 1h absorbance of processing, its value point
Not Wei the nanowire suspended liquid phase ratio of nickel without the processing of this process for dispersing under 15min and 0.642, with equal conditions, when it is settled
Between extend 63%, absorbance improves 18.62%, and in other words dispersion effect is improved.
Claims (6)
- A kind of 1. process for dispersing that nickel nanowire surface non-covalent modification is modified, it is characterised in that：Including following steps：1) nickel nanowire surface processing solution is configured；2) nickel nano wire is added and constant temperature stirring is carried out in surface processing solution, thus removed removing oxide layer, obtain treated nickel Nano wire；3) after rinsing treated nickel nano wire to neutrality repeatedly, then the aqueous solution of nickel nano wire is prepared；4) cetyl trimethylammonium bromide is added in the aqueous solution of nickel nano wire, and carries out constant temperature stirring, that is, obtains high score Dissipate the nickel nano wire aqueous solution of property.
- 2. the process for dispersing that nickel nanowire surface non-covalent modification according to claim 1 is modified, it is characterised in that：Step 1) in, described nickel nanowire surface processing solution is 0.20~0.30mol/L sulfuric acid solution.
- 3. the process for dispersing that nickel nanowire surface non-covalent modification according to claim 1 is modified, it is characterised in that：Step 2) in, the stirring of described constant temperature refers to that at 50~70 DEG C of temperature the mechanical agitation time be 4~5min, stir speed (S.S.) for 400~ 800rpm。
- 4. the process for dispersing that nickel nanowire surface non-covalent modification according to claim 1 is modified, it is characterised in that：Step 3) in, the aqueous solution mass concentration of the nickel nano wire of described preparation should be less than 0.08%.
- 5. the process for dispersing that nickel nanowire surface non-covalent modification according to claim 1 is modified, it is characterised in that：Step 4) in, described cetyl trimethylammonium bromide mass concentration is 0.5~1.0%.
- 6. the process for dispersing that nickel nanowire surface non-covalent modification according to claim 1 is modified, it is characterised in that：Step 4) in, the stirring of described constant temperature is at 20~40 DEG C of temperature, and the mechanical agitation time be 10~15min, stir speed (S.S.) for 400~ 800rpm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114399.5A CN105642903B (en) | 2016-03-01 | 2016-03-01 | The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114399.5A CN105642903B (en) | 2016-03-01 | 2016-03-01 | The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105642903A CN105642903A (en) | 2016-06-08 |
| CN105642903B true CN105642903B (en) | 2017-12-22 |
Family
ID=56491933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114399.5A Expired - Fee Related CN105642903B (en) | 2016-03-01 | 2016-03-01 | The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105642903B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673532B (en) * | 2017-01-20 | 2019-02-12 | 河海大学 | A kind of perception nickel nanofiber cement-base composite material certainly |
| CN108071007B (en) * | 2017-11-08 | 2020-07-17 | 韩金玲 | Method for preparing silver nanowire and graphene-based calcium alginate composite conductive fiber |
| CN110814332B (en) * | 2019-11-08 | 2022-07-12 | 惠州达祺光电科技有限公司 | Silver nanowire post-treatment method |
| CN111217389A (en) * | 2020-01-08 | 2020-06-02 | 苏州星烁纳米科技有限公司 | Nanowire processing method and nanowire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090010477A (en) * | 2007-07-23 | 2009-01-30 | 삼성전기주식회사 | Method for manufacturing nickel nanoparticles |
| JP5189449B2 (en) * | 2008-09-30 | 2013-04-24 | 富士フイルム株式会社 | Metal nanowire-containing composition and transparent conductor |
| CN103785826B (en) * | 2014-02-19 | 2016-03-30 | 南京林业大学 | A kind of preparation method of modified Nano nickel powder |
| CN105014091B (en) * | 2014-04-16 | 2017-07-14 | 中国科学院上海硅酸盐研究所 | A kind of overlength corronil nano wire and preparation method thereof |
| CN104607657B (en) * | 2015-03-06 | 2017-05-03 | 中国科学院上海硅酸盐研究所 | Copper-silver double-metal nanowire and preparation method thereof |
-
2016
- 2016-03-01 CN CN201610114399.5A patent/CN105642903B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105642903A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105642903B (en) | The process for dispersing that a kind of nickel nanowire surface non-covalent modification is modified | |
| Khandavalli et al. | Rheological investigation on the microstructure of fuel cell catalyst inks | |
| CN103102514B (en) | Ionic liquid modified graphene oxide/natural rubber vulcanized rubber and preparation method thereof | |
| CN104466237B (en) | Composite mesoporous silica (IL/SiO2) for encapsulating ionic liquid and preparation and application thereof | |
| CN107298924A (en) | A kind of graphene conductive slurry and preparation method thereof, application process | |
| CN103700823B (en) | A kind of carbon nano tube dispersion liquid and preparation method thereof | |
| CN103367753B (en) | Lead-acid battery cathode lead plaster of a kind of graphene dispersing solution modification and preparation method thereof | |
| CN102924718B (en) | Preparation method of nanostructured polypyrrole | |
| Patey et al. | Electrode engineering of nanoparticles for lithium-ion batteries—Role of dispersion technique | |
| CN108559112A (en) | A kind of preparation method of graphene-cellulose conductive composite film | |
| CN103980488A (en) | Preparation method of sepiolite/polyaniline nanocomposite material | |
| CN106084332A (en) | The preparation method of the pre-dispersed rubber master batch of graphene microchip and process units | |
| CN102064326B (en) | The agent of lithium ion battery plus-negative plate dispersion of materials | |
| Ramesh et al. | Mechanical studies on poly (vinyl chloride)–poly (methyl methacrylate)-based polymer electrolytes | |
| CN107256936B (en) | Polyvinylidene fluoride/cyanoethyl cellulose composite lithium ion battery diaphragm and preparation method thereof | |
| CN105655591B (en) | A kind of nanometer Asia titanium oxide/lead oxide composite conducting additive and its preparation method and application | |
| CN102877152A (en) | Aramid 1313/MWCNT (Multi-Walled Carbon Nanotube) nano fibers and preparation method thereof | |
| CN104710661A (en) | carboxy terminated nitrile rubber/graphene nanocomposite and preparation method thereof | |
| CN105798287B (en) | The process for dispersing that a kind of nickel nanowire surface covalent modification is modified | |
| CN103965569A (en) | Method for preparing nanometer modified compound conductive plastic | |
| CN106673532A (en) | Self-sensing nickel nanofiber cement-based composite material | |
| CN102964648B (en) | Insulation shielding material for mining rubber jacketed cable and preparation method of insulation shielding material | |
| CN110534695A (en) | A kind of lithium ion cell positive slurry-stirring process | |
| CN202427412U (en) | Stirring paddle | |
| CN109592670A (en) | The dispersing method of single-walled carbon nanotube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20210301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |