CN110988037A - Method for detecting dispersion state of titanium dioxide - Google Patents
Method for detecting dispersion state of titanium dioxide Download PDFInfo
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- CN110988037A CN110988037A CN201911140545.1A CN201911140545A CN110988037A CN 110988037 A CN110988037 A CN 110988037A CN 201911140545 A CN201911140545 A CN 201911140545A CN 110988037 A CN110988037 A CN 110988037A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention belongs to the technical field of titanium dioxide production, and particularly relates to a method for detecting the dispersion state of titanium dioxide. The invention aims to solve the technical problem of providing a simple, convenient and accurate method for detecting the dispersion state of titanium dioxide. The invention provides a method for detecting the dispersion state of titanium dioxide. The method comprises the following steps: adding a dispersing agent into the titanium dioxide, adding water to control the concentration of the titanium dioxide to be 500g/L to obtain slurry 1, diluting the slurry 1, dispersing to obtain slurry 2, diluting again, dispersing again, placing in a zeta potential instrument, standing, and detecting the zeta potential value. The method can simply, rapidly and rapidly detect the dispersion state of the titanium dioxide, is favorable for guiding the production of the titanium dioxide and the evaluation of the quality of the finished product of the titanium dioxide, and has wide application prospect.
Description
Technical Field
The invention belongs to the technical field of titanium dioxide production, and particularly relates to a method for detecting the dispersion state of titanium dioxide.
Background
Titanium dioxide particles are not uniformly dispersed, and not only can continuous and uniform coating be realized, but also the scattering of light by pigment particles is influenced, so that the optical property and the pigment performance of the pigment are reduced, and even the coating is damaged in the subsequent air flow crushing process, so that the weather resistance of the pigment is influenced.
The titanium dioxide is powder with strong polarity, and has stable dispersibility in media with strong polarity such as ethanol or water. The surface of the titanium dioxide powder has hydrophilic and oleophobic characteristics, but the surface of the titanium dioxide powder inevitably adsorbs a considerable amount of air and other pollutants, and the dispersibility of the titanium dioxide powder in an aqueous solution is influenced. The high-grade titanium dioxide is subjected to surface treatment, the modification treatment of the titanium dioxide is usually carried out in an aqueous solution, and the uniform coating modification can be carried out on the particle surface of the titanium dioxide only by firstly realizing good monodispersion of the titanium dioxide.
At present, most of titanium dioxide dispersion state detection is carried out by using an annual meter, but for researching the dispersion size of titanium dioxide, a viscometer can only detect a rough range, and the detection of the slurry dispersion state is not sensitive enough.
Disclosure of Invention
The invention aims to solve the technical problem of providing a simple, convenient and accurate method for detecting the dispersion state of titanium dioxide.
The technical scheme adopted by the invention for solving the technical problem is to provide a method for detecting the dispersion state of titanium dioxide. The method comprises the following steps: adding a dispersing agent into the titanium dioxide, adding water to control the concentration of the titanium dioxide to be 500g/L to obtain slurry 1, diluting the slurry 1, dispersing to obtain slurry 2, diluting again, dispersing again, placing in a zeta potential instrument, standing, and detecting the zeta potential value.
In the method for detecting the dispersion state of the titanium dioxide, the dispersing agent is a solution prepared from at least one of sodium silicate or sodium hexametaphosphate.
Further, the present invention can also employ a sodium salt of a polycarboxylic acid as a dispersant.
Wherein, in the method for detecting the dispersion state of the titanium dioxide, the concentration of the dispersing agent is 100-280 g/L.
In the method for detecting the dispersion state of the titanium dioxide, the addition amount of the dispersing agent is 0.1-0.4 percent based on titanium dioxide.
Preferably, the dispersant is added in an amount of 0.3% based on titanium dioxide.
In the method for detecting the dispersion state of titanium dioxide, the slurry 1 is diluted by adding water into the slurry 1 so that the concentration of titanium dioxide is 200-500 g/L.
In the method for detecting the dispersion state of the titanium dioxide, an ultrasonic disperser is adopted for dispersion; the dispersion time is 5-20 min.
Wherein, in the method for detecting the dispersion state of the titanium dioxide, the titanium dioxide is diluted again until the concentration of the titanium dioxide is 0.025-0.04 g/L.
In the method for detecting the dispersion state of the titanium dioxide, the re-dispersion time is 5-20 min.
In the method for detecting the dispersion state of the titanium dioxide, the standing time is 5-10 min.
The invention has the beneficial effects that: the method can simply, rapidly and rapidly detect the dispersion state of the titanium dioxide, and has the advantages of high accuracy and good reproducibility. The method is beneficial to guiding the production of titanium white and the evaluation of the quality of the finished titanium white product, and has wide application prospect.
Drawings
FIG. 1 shows the effect of different addition amounts of dispersant on the zeta potential.
Detailed Description
Specifically, the invention provides a method for detecting the dispersion state of titanium dioxide. The method comprises the following steps:
adding 0.1-0.4% (by titanium dioxide) of a dispersant with the concentration of 100-280g/L into titanium dioxide, adding water to control the concentration of the titanium dioxide to be 500g/L to obtain slurry 1, adding water into the slurry 1 to dilute the slurry 1 until the concentration of the titanium dioxide is 500-500 g/L, dispersing the slurry for 5-20min to obtain slurry 2, adding water again to dilute the slurry until the concentration of the titanium dioxide is 0.025-0.04g/L, dispersing the slurry for 5-20min again, placing the slurry in a zeta potential instrument, standing the slurry for 5-10min to ensure that the particles are in a stable motion state, and detecting the zeta potential value.
In the present invention, at least one of sodium silicate, sodium hexametaphosphate, or a sodium salt of a polycarboxylic acid can be used as the dispersant.
Screening test Effect of different amounts of dispersant added on zeta potential
The amount of the dispersant added was 0.1%, 0.2%, 0.3%, 0.4% in terms of titanium dioxide, respectively, using a sodium silicate solution having a concentration of 100g/L as a dispersant and pure water as a blank control, and the Zata potential value was measured according to the method of the present invention.
As can be seen from FIG. 1, when slurries obtained with different addition amounts of the dispersant were measured by a Brookhaven Zeta potential meter, the Zeta potential rapidly increased first with the increase of the dispersant, and when the Zeta potential increased to a certain extent, the Zeta potential increased gradually. It shows that the surface of titanium dioxide particles must reach a certain adsorption quantity to make the dispersion system have a certain charge stability.
The present invention will be further illustrated by the following specific examples.
Example 1
Taking 1000g of titanium dioxide primary product, adding 0.3% of dispersing agent (sodium silicate solution with the concentration of 100 g/L), adding pure water to control the concentration of titanium dioxide to be 500g/L, and obtaining slurry 1; diluting the slurry 1 with water until the concentration of titanium dioxide is 220g/L, uniformly stirring, and putting into an ultrasonic dispersion machine for 5min to obtain slurry 2; diluting the slurry 2 to the concentration of titanium dioxide of 0.026g/L, placing into an ultrasonic dispersion machine again for dispersion for 5min, placing into a Zeta potentiometer sample cell, standing for 5min, and detecting the Zeta potential value.
Example 2
Taking 1000g of titanium dioxide primary product, adding 0.3% of dispersing agent (sodium silicate solution with the concentration of 160 g/L), adding pure water to control the concentration of titanium dioxide to be 500g/L, and obtaining slurry 1; diluting the slurry 1 with water until the concentration of titanium dioxide is 370g/L, uniformly stirring, and putting into an ultrasonic dispersion machine for 10min to obtain slurry 2; diluting the slurry 2 to the titanium dioxide concentration of 0.031g/L, placing into an ultrasonic dispersion machine again for dispersion for 10min, placing into a Zeta potentiometer sample cell, standing for 5min, and detecting the Zeta potential value.
Example 3
Taking 1000g of titanium dioxide primary product, adding 0.3% of dispersing agent (sodium hexametaphosphate solution with the concentration of 260 g/L), adding pure water to control the concentration of titanium dioxide to be 500g/L, and obtaining slurry 1; diluting the slurry 1 with water until the concentration of titanium dioxide is 365g/L, uniformly stirring, and putting into an ultrasonic dispersion machine for 15min to obtain slurry 2; diluting the slurry 2 to the titanium dioxide concentration of 0.033g/L, placing the slurry into an ultrasonic dispersion machine again for dispersion for 15min, placing the dispersed slurry into a sample cell of a Zeta potentiometer, standing for 5min, and detecting the Zeta potential value.
Example 4
Taking 1000g of titanium dioxide primary product, adding 0.3% of dispersing agent (sodium hexametaphosphate solution with the concentration of 120 g/L), adding pure water to control the concentration of titanium dioxide to be 500g/L, and obtaining slurry 1; diluting the slurry 1 with water until the concentration of titanium dioxide is 480g/L, uniformly stirring, and putting into an ultrasonic dispersion machine for 20min to obtain slurry 2; diluting the slurry 2 to the concentration of titanium dioxide of 0.039g/L, placing the slurry into an ultrasonic dispersion machine again for dispersion for 20min, placing the dispersed slurry into a sample cell of a Zeta potentiometer, standing for 10min, and detecting the Zeta potential value.
Example 5
Taking 1000g of titanium dioxide primary product, adding 0.3% of dispersing agent (sodium silicate solution with the concentration of 270 g/L), adding pure water to control the concentration of titanium dioxide to be 500g/L, and obtaining slurry 1; diluting the slurry 1 with water until the concentration of titanium dioxide is 500g/L, uniformly stirring, and putting into an ultrasonic dispersion machine for 15min to obtain slurry 2; diluting the slurry 2 to the titanium dioxide concentration of 0.04g/L, placing the slurry into an ultrasonic dispersion machine again for dispersion for 15min, placing the dispersed slurry into a Zeta potentiometer sample cell, standing for 10min, and detecting the Zeta potential value. The results of the tests of examples 1 to 5 are shown in Table 1.
TABLE 1 results of detection of zeta potential in examples 1 to 5
As can be seen from Table 1, the method has good precision and can simply and rapidly detect the dispersion state of the titanium dioxide. The method is beneficial to guiding the production of titanium dioxide and the evaluation of the quality of the finished titanium dioxide product, and has wide application prospect.
Claims (10)
1. The method for detecting the dispersion state of the titanium dioxide is characterized by comprising the following steps: the method comprises the following steps: adding a dispersing agent into the titanium dioxide, adding water to control the concentration of the titanium dioxide to be 500g/L to obtain slurry 1, diluting the slurry 1, dispersing to obtain slurry 2, diluting again, dispersing again, placing in a zeta potential instrument, standing, and detecting the zeta potential value.
2. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the dispersing agent is a solution prepared from at least one of sodium silicate or sodium hexametaphosphate.
3. The method for detecting the dispersion state of titanium dioxide according to claim 1 or 2, wherein: the concentration of the dispersant is 100-280 g/L.
4. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the addition amount of the dispersing agent is 0.1-0.4 percent based on titanium dioxide.
5. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the addition amount of the dispersant was 0.3% based on titanium dioxide.
6. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the slurry 1 is diluted by adding water into the slurry 1 to ensure that the concentration of the titanium dioxide is 200-500 g/L.
7. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the dispersion is carried out by adopting an ultrasonic dispersion machine; the dispersion time is 5-20 min.
8. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: and diluting again until the concentration of the titanium dioxide is 0.025-0.04 g/L.
9. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the re-dispersing time is 5-20 min.
10. The method for detecting the dispersion state of titanium dioxide according to claim 1, wherein: the standing time is 5-10 min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811920A (en) * | 2020-07-24 | 2020-10-23 | 天津市捷威动力工业有限公司 | Method for detecting dispersion uniformity and stability of slurry |
| CN114034735A (en) * | 2021-11-04 | 2022-02-11 | 攀钢集团重庆钒钛科技有限公司 | Method for detecting dispersion state in titanium dioxide coating process |
| CN114112937A (en) * | 2021-11-26 | 2022-03-01 | 攀钢集团重庆钛业有限公司 | Method for detecting decoloring force of titanium dioxide in HIPS (high impact polystyrene) resin system |
| CN115598180A (en) * | 2022-10-09 | 2023-01-13 | 攀钢集团重庆钒钛科技有限公司（Cn） | Method for detecting isoelectric point of titanium dioxide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776638A (en) * | 2010-01-13 | 2010-07-14 | 东南大学 | Preparation method of cell biological sensor based on titanium dioxide nanometer interface |
| CN104198560A (en) * | 2014-08-20 | 2014-12-10 | 江苏大学 | Preparation method of graphene modified porous titanium dioxide composite film |
| CN105038329A (en) * | 2015-07-20 | 2015-11-11 | 攀钢集团钛业有限责任公司 | Pulping dispersion method of titanium dioxide |
| CN107063947A (en) * | 2017-04-28 | 2017-08-18 | 攀钢集团研究院有限公司 | The method that particle size analyzer tests plastics special titanium pigment granularity |
| CN108997788A (en) * | 2018-08-27 | 2018-12-14 | 攀钢集团重庆钛业有限公司 | The preparation method of high covering power titanium dioxide |
| CN109443864A (en) * | 2018-10-11 | 2019-03-08 | 攀钢集团重庆钛业有限公司 | The method for making sample of titanium dioxide weatherability detection |
-
2019
- 2019-11-20 CN CN201911140545.1A patent/CN110988037A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776638A (en) * | 2010-01-13 | 2010-07-14 | 东南大学 | Preparation method of cell biological sensor based on titanium dioxide nanometer interface |
| CN104198560A (en) * | 2014-08-20 | 2014-12-10 | 江苏大学 | Preparation method of graphene modified porous titanium dioxide composite film |
| CN105038329A (en) * | 2015-07-20 | 2015-11-11 | 攀钢集团钛业有限责任公司 | Pulping dispersion method of titanium dioxide |
| CN107063947A (en) * | 2017-04-28 | 2017-08-18 | 攀钢集团研究院有限公司 | The method that particle size analyzer tests plastics special titanium pigment granularity |
| CN108997788A (en) * | 2018-08-27 | 2018-12-14 | 攀钢集团重庆钛业有限公司 | The preparation method of high covering power titanium dioxide |
| CN109443864A (en) * | 2018-10-11 | 2019-03-08 | 攀钢集团重庆钛业有限公司 | The method for making sample of titanium dioxide weatherability detection |
Non-Patent Citations (2)
| Title |
|---|
| 刘天霞 等: "生物质燃油碳烟颗粒的分散特性", 《化工学报》 * |
| 张智涛 等: "钛白粉表面处理前的分散性研究", 《材料导报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811920A (en) * | 2020-07-24 | 2020-10-23 | 天津市捷威动力工业有限公司 | Method for detecting dispersion uniformity and stability of slurry |
| CN114034735A (en) * | 2021-11-04 | 2022-02-11 | 攀钢集团重庆钒钛科技有限公司 | Method for detecting dispersion state in titanium dioxide coating process |
| CN114112937A (en) * | 2021-11-26 | 2022-03-01 | 攀钢集团重庆钛业有限公司 | Method for detecting decoloring force of titanium dioxide in HIPS (high impact polystyrene) resin system |
| CN115598180A (en) * | 2022-10-09 | 2023-01-13 | 攀钢集团重庆钒钛科技有限公司（Cn） | Method for detecting isoelectric point of titanium dioxide |
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