CN114716873A - Carrier solution of titanium dioxide and rapid evaluation method for dispersibility of titanium dioxide - Google Patents
Carrier solution of titanium dioxide and rapid evaluation method for dispersibility of titanium dioxide Download PDFInfo
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- CN114716873A CN114716873A CN202210504315.4A CN202210504315A CN114716873A CN 114716873 A CN114716873 A CN 114716873A CN 202210504315 A CN202210504315 A CN 202210504315A CN 114716873 A CN114716873 A CN 114716873A
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- titanium dioxide
- dispersibility
- carrier solution
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 55
- 238000011156 evaluation Methods 0.000 title claims abstract description 14
- 239000006185 dispersion Substances 0.000 claims abstract description 20
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 11
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 11
- 239000000080 wetting agent Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000006254 rheological additive Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 27
- 239000000203 mixture Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000001038 titanium pigment Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/001—Pigment pastes, e.g. for mixing in paints in aqueous medium
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Inorganic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a carrier solution of titanium dioxide and a rapid evaluation method of dispersibility, wherein the carrier solution comprises the following components: 240-260 parts of solvent, 1-3 parts of hydroxyethyl cellulose, 0.5-3 parts of rheological additive, 0.5-3 parts of pH regulator, 2-5 parts of dispersing agent, 1-3 parts of wetting agent and 1-3 parts of defoaming agent. The invention firstly prepares the premixed carrier solution which is beneficial to the dispersion of the titanium dioxide, and the premixed carrier solution is mixed with the titanium dioxide to be tested to carry out the fineness test by adopting the fineness meter so as to measure the dispersibility of the titanium dioxide, thereby effectively screening out the titanium dioxide of the batch with poor dispersibility.
Description
Technical Field
The invention belongs to the technical field of titanium dioxide application, and particularly relates to a carrier solution of titanium dioxide and a rapid evaluation method of dispersibility.
Background
Titanium dioxide is an important inorganic chemical pigment, the main component of which is titanium dioxide, and the titanium dioxide has important application in the industries of paint, printing ink, papermaking, plastic rubber, chemical fiber, ceramic and the like. The dispersibility of titanium dioxide can directly influence the performance of products, however, particularly in the coating field, the water-based building coating products are generally produced in a high-speed dispersion mode, the application amount of the titanium dioxide is large, the dispersibility of the titanium dioxide directly influences the production efficiency and the product quality, the dispersibility of the titanium dioxide in different batches has difference, and the product quality and the production efficiency are influenced by poor batches.
Therefore, the dispersibility of the titanium dioxide needs to be evaluated, so that the titanium dioxide with poor dispersibility is prevented from flowing into production, however, no effective method for evaluating the dispersibility of the titanium dioxide is available in the current coating industry before the production of the water-based building coating, and as a result, the titanium dioxide with poor dispersibility flows into production, so that the product quality is seriously influenced, and the production efficiency is seriously reduced.
Disclosure of Invention
According to the defects of the prior art, the invention aims to provide a titanium dioxide carrier solution and a rapid evaluation method for dispersibility, and the test method for rapidly evaluating the dispersibility of the titanium dioxide in a laboratory is researched in view of the fact that a test method for evaluating the quality of the dispersibility of the titanium dioxide is not available before and in combination with the production practice of the water-based building coating, so that the problem of evaluating the quality of the dispersibility of the titanium dioxide is solved, and the titanium dioxide in batches with poor dispersibility is ensured not to flow into the production of coating products.
In order to realize the purposes, the adopted technical scheme is as follows:
one purpose of the invention is to provide a carrier solution of titanium dioxide, which comprises the following components in parts by weight:
240-260 parts of solvent, 1-3 parts of hydroxyethyl cellulose, 0.5-3 parts of rheological additive, 0.5-3 parts of pH regulator, 2-5 parts of dispersing agent, 1-3 parts of wetting agent and 1-3 parts of defoaming agent.
Further, the above carrier solution comprises the following components: 250 parts of solvent, 2 parts of hydroxyethyl cellulose, 1 part of rheological additive, 1 part of pH regulator, 4 parts of dispersant, 2 parts of wetting agent and 1.5 parts of defoaming agent.
Still further, the solvent is deionized water.
The invention also aims to provide a method for rapidly evaluating the titanium dioxide dispersibility of the carrier solution, which comprises the following steps:
(1) adding hydroxyethyl cellulose and a rheological aid into a solvent by stirring, adding a pH regulator to regulate the pH after dispersing until no particles exist, and dispersing until the gelling is good and no particles exist;
(2) stirring and adding a dispersing agent, a wetting agent and a defoaming agent into the solution obtained in the step (1), and uniformly dispersing by using a dispersing machine to obtain a carrier solution of titanium dioxide;
(3) adding titanium dioxide into the carrier solution obtained in the step (2) while stirring, and after high-speed dispersion, sampling and measuring the fineness.
Further, the using amount of the titanium dioxide is 145-155 parts.
And furthermore, the using amount of the titanium dioxide is 150 parts.
Further, the evaluation standard of the rapid evaluation method for titanium dioxide dispersibility is as follows: the fineness is less than 30 mu m, and the dispersibility is excellent; the fineness is 30-50 μm, and the dispersibility is good; fineness > 50 μm and poor dispersibility.
Further, the high-speed dispersion in the step (3) is carried out by a dispersion machine, the rotating speed is 2500 rpm, and the time of the high-speed dispersion is 30 min.
Further, the fineness is measured with a fineness meter.
Further, the pH in the step (1) is 7.0 to 8.5.
Further, the fineness is an average value of fineness results obtained by continuously sampling for 3-5 times.
Compared with the prior art, the invention has the beneficial effects that: in order to evaluate the dispersion quality of titanium dioxide in batches, because the titanium dioxide is insoluble in water and can not be uniformly dispersed to form a stable aqueous solution, a premixed carrier solution which is beneficial to the dispersion of the titanium dioxide is firstly prepared, the premixed carrier solution is mixed with the titanium dioxide to be tested, a fineness test is carried out by using a fineness meter, and the dispersion of the titanium dioxide is measured through a fineness result, so that the titanium dioxide in the batches with poor dispersion is effectively screened out. In the carrier solution, hydroxyethyl cellulose and a rheological additive which improve the viscosity of the solution are added into a solvent, a pH regulator is matched, a dispersing agent and a wetting agent are adopted to improve the dispersibility of the titanium dioxide, and a defoaming agent is used to reduce the foam of the solution, so that the carrier solution of the titanium dioxide capable of uniformly dispersing the titanium dioxide is prepared.
Drawings
FIG. 1 is a flow chart of a method for preparing a carrier solution of titanium dioxide and rapidly evaluating dispersibility.
Detailed Description
The present invention is described below with reference to examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
The test object of the invention is titanium dioxide, and the dispersibility test and evaluation are performed by taking rutile type titanium dioxide as an example, but the test and evaluation method is not limited to the rutile type titanium dioxide.
In the examples of the present invention, "part" means part by weight.
Example 1
(1) Adding 2 parts of hydroxyethyl cellulose and 1 part of rheological additive BS-868 into 250 parts of distilled water by stirring, dispersing the mixture by a dispersion machine until no particles exist, adding 1 part of PH regulator AMP-95, and dispersing the mixture until the mixture is well gelatinized and no particles exist;
(2) adding 4 parts of dispersing agent 5040, 2 parts of wetting agent P-100 and 1.5 parts of defoaming agent YA-6000 into the solution obtained in the step (1) by stirring, and uniformly dispersing by using a dispersing machine to obtain a carrier solution of titanium pigment;
(3) adding 150 parts of rutile type titanium dioxide FR767 with the batch number of 1 into the carrier solution obtained in the step (2) while stirring, after dispersing for 30 minutes at the high speed of 2500 rpm of a dispersion machine, taking a small sample from the carrier solution, detecting the fineness by using a micrometer fineness meter, continuously sampling for 3 times, detecting the fineness, and obtaining the average value of the fineness of the 3 times of sampling to be 25 micrometers, wherein the dispersibility evaluation result of the batch of samples is excellent.
Example 2
(1) Adding 2 parts of hydroxyethyl cellulose and 1 part of rheological additive BS-868 into 250 parts of distilled water by stirring, dispersing the mixture by a dispersion machine until no particles exist, adding 1 part of PH regulator AMP-95, and dispersing the mixture until the mixture is well gelatinized and no particles exist;
(2) adding 4 parts of dispersing agent 5040, 2 parts of wetting agent P-100 and 1.5 parts of defoaming agent YA-6000 into the solution obtained in the step (1) by stirring, and uniformly dispersing by using a dispersing machine to obtain a carrier solution of titanium pigment;
(3) adding 150 parts of 2-lot rutile titanium dioxide FR767 into the carrier solution obtained in the step (2) while stirring, after dispersing for 30 minutes at a high speed of 2500 rpm of a dispersion machine, taking a small sample from the carrier solution, detecting the fineness by using a micrometer fineness meter, continuously sampling for 3 times, detecting the fineness, and obtaining the average value of the 3-time sampling fineness of 40 micrometers, wherein the dispersibility evaluation result of the batch of samples is good.
Example 3
(1) Adding 2 parts of hydroxyethyl cellulose and 1 part of rheological additive BS-868 into 250 parts of distilled water by stirring, dispersing the mixture by a dispersion machine until no particles exist, adding 1 part of PH regulator AMP-95, and dispersing the mixture until the mixture is well gelatinized and no particles exist;
(2) adding 4 parts of dispersing agent 5040, 2 parts of wetting agent P-100 and 1.5 parts of defoaming agent YA-6000 into the solution obtained in the step (1) by stirring, and uniformly dispersing by using a dispersing machine to obtain a carrier solution of titanium pigment;
(3) adding 150 batches of 3 rutile titanium dioxide FR767 into the carrier solution obtained in the step (2) while stirring, after dispersing for 30 minutes at a high speed of 2500 rpm of a dispersion machine, taking a small sample from the mixture, detecting the fineness by using a micrometer fineness meter, continuously sampling for 3 times, detecting the fineness, and obtaining that the average value of the 3 times of sampling fineness is 60 micrometers, wherein the evaluation result of the dispersibility of the batch of samples is poor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The carrier solution of titanium dioxide is characterized by comprising the following components in parts by weight:
240-260 parts of solvent, 1-3 parts of hydroxyethyl cellulose, 0.5-3 parts of rheological additive, 0.5-3 parts of pH regulator, 2-5 parts of dispersing agent, 1-3 parts of wetting agent and 1-3 parts of defoaming agent.
2. The carrier solution of claim 1, comprising the following components in parts by weight:
250 parts of solvent, 2 parts of hydroxyethyl cellulose, 1 part of rheological additive, 1 part of pH regulator, 4 parts of dispersant, 2 parts of wetting agent and 1.5 parts of defoaming agent.
3. The carrier solution of claim 1 wherein the solvent is deionized water.
4. A method for rapidly evaluating the titanium dioxide dispersibility by using the carrier solution as described in any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) adding hydroxyethyl cellulose and a rheological aid into a solvent by stirring, adding a pH regulator after dispersing till no particles are formed to regulate the pH, and dispersing till good gelatinization is realized and no particles are formed;
(2) adding the dispersing agent, the wetting agent and the defoaming agent into the solution obtained in the step (1) by stirring, and uniformly dispersing to obtain a carrier solution of titanium dioxide;
(3) adding titanium dioxide into the carrier solution obtained in the step (2) while stirring, and after high-speed dispersion, sampling and measuring the fineness.
5. The method according to claim 4, wherein the amount of the titanium dioxide is 145-155 parts.
6. The method according to claim 4, wherein the titanium dioxide is used in an amount of 150 parts.
7. The method according to claim 4, wherein the evaluation criteria of the rapid evaluation method for titanium dioxide dispersibility are as follows: the fineness is less than 30 mu m, and the dispersibility is excellent; the fineness is 30-50 μm, and the dispersibility is good; fineness > 50 μm and poor dispersibility.
8. The method according to claim 4, wherein the high speed dispersion in the step (3) is performed by a dispersion machine, the rotating speed is 2500 rpm, and the time of the high speed dispersion is 30 min.
9. The method of claim 4, wherein the fineness is measured with a fineness gauge.
10. The method according to claim 4, wherein the pH in the step (1) is 7.0 to 8.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504315.4A CN114716873A (en) | 2022-05-10 | 2022-05-10 | Carrier solution of titanium dioxide and rapid evaluation method for dispersibility of titanium dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504315.4A CN114716873A (en) | 2022-05-10 | 2022-05-10 | Carrier solution of titanium dioxide and rapid evaluation method for dispersibility of titanium dioxide |
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| Publication Number | Publication Date |
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| CN114716873A true CN114716873A (en) | 2022-07-08 |
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| CN202210504315.4A Pending CN114716873A (en) | 2022-05-10 | 2022-05-10 | Carrier solution of titanium dioxide and rapid evaluation method for dispersibility of titanium dioxide |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744029A (en) * | 1952-05-24 | 1956-05-01 | Nat Lead Co | Preparation of water dispersible titanium dioxide pigment |
| CN104990843A (en) * | 2015-08-03 | 2015-10-21 | 攀钢集团钛业有限责任公司 | Method for detecting titanium dioxide oil-dispersing property |
| CN106940284A (en) * | 2017-05-24 | 2017-07-11 | 张建平 | A kind of dispersability of titanium dioxide detection method |
| CN108727906A (en) * | 2018-05-22 | 2018-11-02 | 上海大学 | Aqueous Titanium dioxide slurry and the method for preparing aqueous titanium white mill base material using good pressure distribution technique |
| CN111621172A (en) * | 2020-06-09 | 2020-09-04 | 攀钢集团重庆钛业有限公司 | Method for improving dispersibility of titanium dioxide in aqueous color paste |
| US20200347256A1 (en) * | 2018-01-29 | 2020-11-05 | Ishihara Sangyo Kaisha, Ltd. | Titanium dioxide aqueous dispersion and method for producing same |
| CN113933128A (en) * | 2021-11-26 | 2022-01-14 | 攀钢集团重庆钛业有限公司 | Method for detecting whiteness of titanium dioxide in paint |
-
2022
- 2022-05-10 CN CN202210504315.4A patent/CN114716873A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744029A (en) * | 1952-05-24 | 1956-05-01 | Nat Lead Co | Preparation of water dispersible titanium dioxide pigment |
| CN104990843A (en) * | 2015-08-03 | 2015-10-21 | 攀钢集团钛业有限责任公司 | Method for detecting titanium dioxide oil-dispersing property |
| CN106940284A (en) * | 2017-05-24 | 2017-07-11 | 张建平 | A kind of dispersability of titanium dioxide detection method |
| US20200347256A1 (en) * | 2018-01-29 | 2020-11-05 | Ishihara Sangyo Kaisha, Ltd. | Titanium dioxide aqueous dispersion and method for producing same |
| CN108727906A (en) * | 2018-05-22 | 2018-11-02 | 上海大学 | Aqueous Titanium dioxide slurry and the method for preparing aqueous titanium white mill base material using good pressure distribution technique |
| CN111621172A (en) * | 2020-06-09 | 2020-09-04 | 攀钢集团重庆钛业有限公司 | Method for improving dispersibility of titanium dioxide in aqueous color paste |
| CN113933128A (en) * | 2021-11-26 | 2022-01-14 | 攀钢集团重庆钛业有限公司 | Method for detecting whiteness of titanium dioxide in paint |
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