CN104437155A - Dispersing method for ZrB2 nanopowder - Google Patents
Dispersing method for ZrB2 nanopowder Download PDFInfo
- Publication number
- CN104437155A CN104437155A CN201410631888.9A CN201410631888A CN104437155A CN 104437155 A CN104437155 A CN 104437155A CN 201410631888 A CN201410631888 A CN 201410631888A CN 104437155 A CN104437155 A CN 104437155A
- Authority
- CN
- China
- Prior art keywords
- zrb2
- powder
- zrb2 powder
- solvent
- nanometer
- 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
Landscapes
- Colloid Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention relates to a dispersing method for ZrB2 nanopowder and aims at solving the problem that the ZrB2 nanopowder is easily agglomerated in water. The dispersing method comprises the steps of firstly, titrating deionized water by using acid or alkaline to obtain a solvent with the pH value of 3 or 11; and secondly, weighing ZrB2 powder and a dispersing agent, sequentially adding the ZrB2 powder and the dispersing agent into the solvent, and carrying out ultrasonic treatment for 14-16 minutes to obtain uniformly-dispersed slurry, namely finishing the dispersion of the ZrB2 nanopowder. By using the dispersing method disclosed by the invention, the dispersing effect is good, the ZrB2 nanopowder can be uniformly dispersed, and the slurry cannot be remarkably settled within 24 hours. The agglomeration size of the ZrB2 nanopowder is relatively small, the agglomeration size of the ZrB2 powder is smaller than 300nm, and the Zeta potential is about 40mv. The dispersing method is applied to the field of nanomaterials.
Description
Technical field
The present invention relates to the process for dispersing of nanometer ZrB2 powder.
Background technology
Nano material, because its crystallite dimension is in nanometer scale, makes its some performance have the peculiar advantage being different from traditional material, as high mechanical property, high rigidity, superplasticity and the property in acousto-optic-electric is pyromagnetic.ZrB2, due to its high high temperature resistant, anti-oxidant, anti-yaw damper performance, is considered to hypersonic flight, the optimal candidate material of the extreme chemical environment that Reentry is relevant with rocket propulsion and thermal environment.Noted by gel and prepare ceramic material, have can prepare complex structural member, base substrate is convenient to mach advantage.Gel injection-moulding prepares nanometer ZrB2 becomes a kind of new preparation method.When utilizing gel injection-moulding to prepare nanometer ZrB2-SiC material, because the surface area ratio of nanometer ZrB2 powder is comparatively large, be easy in a solvent reunite.
Summary of the invention
The present invention is the problem that will solve the easily reunion in water of nanometer ZrB2 powder, provides a kind of method of dispersing nanometer ZrB2 powder.
The method of dispersing nanometer ZrB2 powder of the present invention, carry out according to the following steps:
One, obtain by acidometric titration deionized water the solvent that pH is 3;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
The method of the present invention another kind of dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by alkalimetric titration deionized water the solvent that pH is 11;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
The present invention has the following advantages:
1, the solvent that the present invention uses is deionized water, and inexpensive clean is pollution-free.
2, the dispersion effect of the inventive method good, be uniformly dispersed, obvious sediment can be there is not by 24h in slurry.
3, the agglomerate size of nanometer ZrB2 powder is less, and the agglomerate size of ZrB2 powder is less than 300nm, and Zeta potential is about 40mv.
When ZrB2 powder after the inventive method dispersion prepares nanometer ZrB2-SiC material for gel injection-moulding, not easily reunite.
Accompanying drawing explanation
Fig. 1 is the slurry original state figure being dispersed with ZrB2 that embodiment 1 ~ 3 obtains; Fig. 2 is that the slurry being dispersed with ZrB2 that embodiment 1 ~ 3 obtains leaves standstill the effect after 24 hours; Fig. 3 is the slurry original state figure being dispersed with ZrB2 that embodiment 4 ~ 6 obtains; Fig. 4 is that the slurry being dispersed with ZrB2 that embodiment 4 ~ 6 obtains leaves standstill the effect after 24 hours.
Detailed description of the invention
Technical solution of the present invention is not limited to following cited detailed description of the invention, also comprises any combination between each detailed description of the invention.
Detailed description of the invention one: the method for present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by acidometric titration deionized water the solvent that pH is 3;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: in step one, acid is lactic acid.Other is identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two unlike: in step 2, the particle diameter of ZrB2 powder is 50 ~ 100nm, and purity is greater than 99%.Other is identical with detailed description of the invention one or two.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three unlike: in step 2, dispersant is polymine (PEI).Other is identical with one of detailed description of the invention one to three.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four unlike: in step 2, the quality of ZrB2 powder is 2% of solvent quality, and the quality of dispersant is 2% ~ 6% of ZrB2 powder quality.Other is identical with one of detailed description of the invention one to four.
Detailed description of the invention six: the method for present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by alkalimetric titration deionized water the solvent that pH is 11;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
Detailed description of the invention seven: present embodiment and detailed description of the invention six unlike: in step one, alkali is ammoniacal liquor.Other is identical with detailed description of the invention six.
Detailed description of the invention eight: present embodiment and detailed description of the invention six or seven unlike: in step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.Other is identical with detailed description of the invention six or seven.
Detailed description of the invention nine: one of present embodiment and detailed description of the invention six to eight unlike: in step 2, dispersant is ammonium polyacrylate (PAA-NH4).Other is identical with one of detailed description of the invention six to eight.
Detailed description of the invention ten: one of present embodiment and detailed description of the invention six to nine unlike: in step 2, the quality of ZrB2 powder is 2% of solvent quality, and the quality of dispersant is 2% ~ 6% of ZrB2 powder quality.Other is identical with one of detailed description of the invention six to nine.
Embodiment 1:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by lactic acid titration deionized water the solvent that pH is 3;
Two, take 0.2gZrB2 powder and 0.004g polymine, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, polyethylene of dispersing agent imines is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
Embodiment 2:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by lactic acid titration deionized water the solvent that pH is 3;
Two, take 0.2gZrB2 powder and 0.008g polymine, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, polyethylene of dispersing agent imines is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
Embodiment 3:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by lactic acid titration deionized water the solvent that pH is 3;
Two, take 0.2gZrB2 powder and 0.012g polymine, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, polyethylene of dispersing agent imines is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
Embodiment 4:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by ammonia water titration deionized water the solvent that pH is 11;
Two, take 0.2gZrB2 powder and 0.004g ammonium polyacrylate, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, dispersants ammonium polyacrylate is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
Embodiment 5:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by ammonia water titration deionized water the solvent that pH is 11;
Two, take 0.2gZrB2 powder and 0.008g ammonium polyacrylate, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, dispersants ammonium polyacrylate is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
Embodiment 6:
The method of the present embodiment dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by ammonia water titration deionized water the solvent that pH is 11;
Two, take 0.2gZrB2 powder and 0.012g ammonium polyacrylate, successively join in 10mL solvent by ZrB2 powder and polymine, ultrasonic 15min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
In step 2, the average grain diameter of ZrB2 powder is 100nm, and purity is greater than 99%.
In step 2, dispersants ammonium polyacrylate is for analyzing pure grade.
Ultrasonic power described in step 2 is 100w, and frequency is 180khz.
What embodiment 1 ~ 3 obtained is dispersed with the slurry original state figure of ZrB2 as shown in Figure 1, in Fig. 1, a is the slurry not adding dispersant, b is the slurry being dispersed with ZrB2 that embodiment 1 obtains, c is the slurry being dispersed with ZrB2 that embodiment 2 obtains, and d is the slurry being dispersed with ZrB2 that embodiment 3 obtains.The slurry of what embodiment 1 ~ 3 obtained be dispersed with ZrB2 leaves standstill the effect after 24 hours as shown in Figure 2, in Fig. 2, a is the slurry not adding dispersant, b is the slurry being dispersed with ZrB2 that embodiment 1 obtains, c is the slurry being dispersed with ZrB2 that embodiment 2 obtains, and d is the slurry being dispersed with ZrB2 that embodiment 3 obtains.
What embodiment 4 ~ 6 obtained is dispersed with the slurry original state figure of ZrB2 as shown in Figure 3, in Fig. 3, a is the slurry not adding dispersant, b is the slurry being dispersed with ZrB2 that embodiment 1 obtains, c is the slurry being dispersed with ZrB2 that embodiment 2 obtains, and d is the slurry being dispersed with ZrB2 that embodiment 3 obtains.The slurry of what embodiment 4 ~ 6 obtained be dispersed with ZrB2 leaves standstill the effect after 24 hours as shown in Figure 4, in Fig. 4, a is the slurry not adding dispersant, b is the slurry being dispersed with ZrB2 that embodiment 1 obtains, c is the slurry being dispersed with ZrB2 that embodiment 2 obtains, and d is the slurry being dispersed with ZrB2 that embodiment 3 obtains.
As can be seen from Fig. 1 ~ 4, the dispersion effect of the inventive method is good, be uniformly dispersed, slurry obvious sediment can not occur by 24h.
The slurry being dispersed with ZrB2 obtained embodiment 1 ~ 6 carries out the test of grain diameter measurement and Zeta potential, shown in its result table 1.
Table 1
The Zeta potential absolute value > 35mv of slurry, illustrates that intergranular space resistance can make slurry form stable suspension.The agglomerate size < 300nm of particle in the slurry, illustrates that the reunion degree of nano particle is lower, can form stable suspension in 24h.
Claims (10)
1. the method for dispersing nanometer ZrB2 powder, is characterized in that the method, carries out according to the following steps:
One, obtain by acidometric titration deionized water the solvent that pH is 3;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
2. the method for dispersing nanometer ZrB2 powder according to claim 1, is characterized in that in step one, acid is lactic acid.
3. the method for dispersing nanometer ZrB2 powder according to claim 1 and 2, it is characterized in that the average grain diameter of ZrB2 powder in step 2 is 100nm, purity is greater than 99%.
4. the method for dispersing nanometer ZrB2 powder according to claim 3, is characterized in that in step 2, dispersant is polymine.
5. the method for dispersing nanometer ZrB2 powder according to claim 4, it is characterized in that the quality of ZrB2 powder in step 2 is 2% of solvent quality, the quality of dispersant is 2% ~ 6% of ZrB2 powder quality.
6. the method for dispersing nanometer ZrB2 powder, carry out according to the following steps:
One, obtain by alkalimetric titration deionized water the solvent that pH is 11;
Two, take ZrB2 powder and dispersant, successively join in solvent by ZrB2 powder and dispersant, ultrasonic 14 ~ 16min, obtains finely dispersed slurry, namely completes the dispersion of nanometer ZrB2 powder.
7. the method for dispersing nanometer ZrB2 powder according to claim 6, is characterized in that in step one, alkali is ammoniacal liquor.
8. the method for the dispersing nanometer ZrB2 powder according to claim 6 or 7, it is characterized in that the average grain diameter of ZrB2 powder in step 2 is 100nm, purity is greater than 99%.
9. the method for dispersing nanometer ZrB2 powder according to claim 8, is characterized in that in step 2, dispersant is ammonium polyacrylate.
10. the method for dispersing nanometer ZrB2 powder according to claim 9, it is characterized in that the quality of ZrB2 powder in step 2 is 2% of solvent quality, the quality of dispersant is 2% ~ 6% of ZrB2 powder quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631888.9A CN104437155A (en) | 2014-11-11 | 2014-11-11 | Dispersing method for ZrB2 nanopowder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631888.9A CN104437155A (en) | 2014-11-11 | 2014-11-11 | Dispersing method for ZrB2 nanopowder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104437155A true CN104437155A (en) | 2015-03-25 |
Family
ID=52884367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631888.9A Pending CN104437155A (en) | 2014-11-11 | 2014-11-11 | Dispersing method for ZrB2 nanopowder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104437155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854287A (en) * | 2016-12-20 | 2017-06-16 | 华南理工大学 | A kind of method for disperseing nanocrystalline cellulose powder in an aqueous medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167771A (en) * | 1993-12-15 | 1995-07-04 | Tokai Konetsu Kogyo Co Ltd | Dispersing method for ceramic powder |
| CN1394918A (en) * | 2001-07-06 | 2003-02-05 | 韩巍 | Nano Water dispersion medium composition, its preparation method and application |
| US20090048087A1 (en) * | 2006-05-22 | 2009-02-19 | Zhang Shi C | High-density pressurelessly sintered zirconium diboride/silicon carbide composite bodies and a method for producing the same |
| CN102515870A (en) * | 2011-12-10 | 2012-06-27 | 西北工业大学 | Preparation method of C/SiC-ZrB2-ZrC ultrahigh-temperature ceramic-based composite material |
| CN103044028A (en) * | 2013-01-24 | 2013-04-17 | 兰州理工大学 | Water-based ZrB2 paste material and preparation method of water-based ZrB2 paste material |
-
2014
- 2014-11-11 CN CN201410631888.9A patent/CN104437155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167771A (en) * | 1993-12-15 | 1995-07-04 | Tokai Konetsu Kogyo Co Ltd | Dispersing method for ceramic powder |
| CN1394918A (en) * | 2001-07-06 | 2003-02-05 | 韩巍 | Nano Water dispersion medium composition, its preparation method and application |
| US20090048087A1 (en) * | 2006-05-22 | 2009-02-19 | Zhang Shi C | High-density pressurelessly sintered zirconium diboride/silicon carbide composite bodies and a method for producing the same |
| CN102515870A (en) * | 2011-12-10 | 2012-06-27 | 西北工业大学 | Preparation method of C/SiC-ZrB2-ZrC ultrahigh-temperature ceramic-based composite material |
| CN103044028A (en) * | 2013-01-24 | 2013-04-17 | 兰州理工大学 | Water-based ZrB2 paste material and preparation method of water-based ZrB2 paste material |
Non-Patent Citations (2)
| Title |
|---|
| JIE YIN ET AL: "《Co-Dispersion Behavior of ZrB2–SiC–B4C–C Powders with Polyethyleneimine》", 《MATERIALS》 * |
| ZHIHUI LÜ ET AL: "《Processing and properties of ZrB2–SiC composites obtained by aqueous tape casting and hot pressing》", 《CERAMICS INTERNATIONAL》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854287A (en) * | 2016-12-20 | 2017-06-16 | 华南理工大学 | A kind of method for disperseing nanocrystalline cellulose powder in an aqueous medium |
| CN106854287B (en) * | 2016-12-20 | 2019-07-16 | 华南理工大学 | A method of dispersing nanocrystalline cellulose powder in an aqueous medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170647B (en) | Method for forming copper nanometer sheet through self-assembly | |
| Li et al. | Effect of local velocity on diffusion-induced stress in large-deformation electrodes of lithium-ion batteries | |
| CN106328256B (en) | A kind of lithium ion battery electrocondution slurry and preparation method thereof | |
| Raghupathy et al. | Spray granulation of nanometric zirconia particles | |
| CN105060281A (en) | Nano-graphite slurry preparation method | |
| CN106660802A (en) | Process for preparing graphene nanoplatelets | |
| CN105384190B (en) | Method for preparing nano samarium zirconate powder used for additive manufacturing and feeding | |
| CN102417773A (en) | Superhydrophobic acrylic resin paint | |
| CN106147616A (en) | The preparation method of solvent-borne type modified aluminum oxide polishing fluid | |
| CN104437154A (en) | Dispersing method for SiC nanopowder | |
| CN110563010A (en) | preparation method of low-sodium regular hexagonal flaky alpha-alumina micro powder | |
| CN104803408A (en) | Method for preparing modified nano-zinc oxide | |
| CN104900867A (en) | Preparation method of CNT/Co/MoS2 composite material | |
| CN106277014A (en) | The method that dispersion surface modification prepares active superfine calcium carbonate in advance | |
| CN108483474A (en) | A kind of preparation method of nano-level sphere aluminium oxide | |
| CN105905888A (en) | Graphene composite microchips stripped by using turbine sander and preparation method for graphene composite microchips | |
| Kamel et al. | Heat transfer enhancement using nanofluids: a review of the recent literature | |
| CN112939083A (en) | Molybdenum disulfide/ferroferric oxide/graphene nanosheet composite wave absorber and preparation method thereof | |
| CN104437155A (en) | Dispersing method for ZrB2 nanopowder | |
| CN104505141A (en) | Solar cell conductive silver paste | |
| CN106673030B (en) | A kind of alumina hollow ball and preparation method thereof | |
| CN104843726A (en) | Method for dispersing nanometer ZrB2-SiC composite powder | |
| CN110790236A (en) | Method for coating nano ammonium perchlorate by graphene wet process | |
| CN103846451A (en) | Method for synthesizing silver powder with adjustable particle size | |
| CN102718255B (en) | Preparation method of titanium dioxide hollow nano structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |