CN1274770C - Rutile-type nano titania slurry and its prepn - Google Patents
Rutile-type nano titania slurry and its prepn Download PDFInfo
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- CN1274770C CN1274770C CN 02102663 CN02102663A CN1274770C CN 1274770 C CN1274770 C CN 1274770C CN 02102663 CN02102663 CN 02102663 CN 02102663 A CN02102663 A CN 02102663A CN 1274770 C CN1274770 C CN 1274770C
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Abstract
Nano rutile-type titanium oxide powder needs multiple working procedures during use, use occasions are different, and the use methods of the nano rutile-type titanium oxide powder are different; thereby, the application of the nano rutile-type titanium oxide powder is limited. Therefore, the present invention provides a nano rutile-type titanium oxide slurry, wherein the content of nano rutile-type titanium oxide is from 10 to 20%(weight). A method for preparing the nano rutile-type titanium oxide slurry comprises the steps that the nano rutile-type titanium oxide and water are firstly uniformly dispersed in a sand mill and are concentrated then. The nano rutile-type titanium oxide slurry can be directly used in various occasions. Compared with powder use, the nano rutile-type titanium oxide slurry has the characteristics of simple processes, convenient use, etc., and the dispersion degree of the nano rutile-type titanium oxide in a system is greatly increased. The method for preparing the nano rutile-type titanium oxide has the advantages of simple manufacture and little investment.
Description
Technical field
What the present invention relates to is rutile-type nano titania slurry and preparation method thereof.
Background technology
Titanium oxide has three kinds of crystal formations: anatase octahedrite, rutile and brookite.Nano-titanium oxide is meant the titanium oxide product of grain-size less than 100 nanometers, because its particle is little, specific surface is big, thereby makes it have high reaction activity and high.It is stable that nano-titanium oxide has chemical property, acid-alkali-corrosive-resisting and good dispersiveness, and wherein nano rutile-type titania has more good uv-shielding capacity, thereby is widely used in aspects such as coating, makeup.At present, at coating, cosmetic field, what the use of nano rutile-type titania was adopted is the nano rutile-type titania powder, but the nano rutile-type titania powder in use needs through multiple working procedure, and the occasion difference of using, the using method of nano rutile-type titania powder is also different, thereby has limited its application.
Summary of the invention
At above-mentioned deficiency, technical problem to be solved by this invention provides a kind of preparation method who need not to be applied to different methods the rutile-type nano titania slurry and this rutile-type nano titania slurry of different occasions.
Rutile-type nano titania slurry provided by the invention, wherein the content of nano rutile-type titania is for being 10-20% (weight).
The preparation method of rutile-type nano titania slurry provided by the invention, be in sand mill, nano rutile-type titania and water to be uniformly dispersed through sand milling earlier, concentrate then, wherein will add inorganic dispersant during sand milling and the pH value of material is adjusted between the 7.5-8.5.
The preparation method of rutile-type nano titania slurry provided by the invention, the characteristic of used nano rutile-type titania is as follows:
Face shaping white loose powder
Particle shape needle-like
The long 30-50 nanoneedle of initial size pin diameter 5-15 nanometer
With light packs density 0.07-0.08g/cm
3
Specific surface is greater than 130m
2/ g
Purity is greater than 99%
The trade mark of producing as Zhoushan nano material tomorrow company is HJ310, the nano rutile-type titania of DJ3.
The preparation method of rutile-type nano titania slurry provided by the invention, used inorganic dispersant is Sodium hexametaphosphate 99, sodium polyphosphate or sodium sulphite, the add-on of inorganic dispersant accounts for the 0.5%-3.0% (weight) of the material total amount that enters sand mill.
Each method of the system of rutile-type nano titania slurry provided by the invention, during sand milling the add-on of nano rutile-type titania account for the material total amount that enters sand mill 3%-8% (weight).
The preparation method of rutile-type nano titania slurry provided by the invention, temperature is controlled at below 70 ℃ when concentrating.
Rutile-type nano titania slurry provided by the invention can directly use in various occasions, compare it with the use of powder and have characteristics such as technology is simple, easy to use, and the degree of scatter of nano rutile-type titania in system is improved greatly.The preparation method of nanometer rutile titanium oxide provided by the invention, simple for production, invest low.
Concrete implementing method
Embodiment 1: at first add 1250ml water in the 100g nano rutile-type titania, the while adds Sodium hexametaphosphate 99 0.5g while stirring, then they is poured into it is uniformly dispersed.Then adjust pH value 7.5, at last they are placed 50 ℃ of vacuum oven, make its concentration be concentrated to 10%.
Embodiment 2: at first add 2000ml water in the 100g nano rutile-type titania, the while adds sodium polyphosphate 1.8g while stirring, then they is poured into it is uniformly dispersed.Then adjust pH value 8.0, at last they are placed 60 ℃ of vacuum oven, make its concentration be concentrated to 15%.
Embodiment 3: at first add 2000ml water in the 100g nano rutile-type titania, the while adds sodium sulphite 3g while stirring, then they is poured into it is uniformly dispersed.Then adjust pH value 8.5, at last they are placed 70 ℃ of following vacuum oven, make its concentration be concentrated to 20%.
Claims (5)
1, a kind of rutile-type nano titania slurry, the weight content that it is characterized in that nano rutile-type titania in the slurry is 10%-20%, the characteristic of wherein used nano rutile-type titania is as follows:
Face shaping white loose powder
Particle shape needle-like
The long 30-50 nanoneedle of initial size pin diameter 5-15 nanometer
Proportion 0.07-0.08g/cm
3
Specific surface is greater than 130m
2/ g
Purity is greater than 99%.
2, the preparation method of rutile-type nano titania slurry as claimed in claim 1, it is characterized in that in sand mill, nano rutile-type titania and water being uniformly dispersed through sand milling earlier, concentrate at last, wherein will add inorganic dispersant during sand milling and the pH value of material is adjusted between the 7.5-8.5, wherein used inorganic dispersant is Sodium hexametaphosphate 99, sodium polyphosphate or sodium sulphite.
3, the preparation method of rutile-type nano titania slurry as claimed in claim 2 is characterized in that the add-on of inorganic dispersant accounts for the 0.5%-3.0% of the material gross weight that enters sand mill.
4, the preparation method of rutile-type nano titania slurry as claimed in claim 2, when it is characterized in that sand milling the add-on of nano rutile-type titania account for the material gross weight that enters sand mill 3%-8%.
5, the preparation method of rutile-type nano titania slurry as claimed in claim 2, temperature is controlled at below 70 ℃ when it is characterized in that concentrating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02102663 CN1274770C (en) | 2002-02-26 | 2002-02-26 | Rutile-type nano titania slurry and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02102663 CN1274770C (en) | 2002-02-26 | 2002-02-26 | Rutile-type nano titania slurry and its prepn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441008A CN1441008A (en) | 2003-09-10 |
| CN1274770C true CN1274770C (en) | 2006-09-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02102663 Expired - Fee Related CN1274770C (en) | 2002-02-26 | 2002-02-26 | Rutile-type nano titania slurry and its prepn |
Country Status (1)
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|---|---|
| CN (1) | CN1274770C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI487668B (en) * | 2009-02-19 | 2015-06-11 | Sakai Chemical Industry Co | Dispersion of rutile-type titanium oxide particles, method for producing the same, and use thereof |
| CN103102791B (en) * | 2013-02-26 | 2015-04-08 | 杭州电子科技大学 | Preparation method of nano TiO2 self-cleaning transparent coating |
| CN107955416A (en) * | 2017-12-25 | 2018-04-24 | 江西联锴新材料有限公司 | A kind of water-dispersible titanium dioxide of cosmetics and preparation method thereof |
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2002
- 2002-02-26 CN CN 02102663 patent/CN1274770C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1441008A (en) | 2003-09-10 |
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Owner name: ZHEJIANG HONGSHENG MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOUSHAN TOMORROW NANOMATERIALS CO., LTD. Effective date: 20080222 |
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Effective date of registration: 20080222 Address after: No. 150 Xinqiao Road, Dinghai, Zhejiang, Zhoushan Patentee after: Gelante Special Paint Co., Ltd., Zhoushan City Address before: No. 1, Shenjiamen Industrial Zone, Putuo District, Zhoushan, Zhejiang, Pingyang Patentee before: Zhoushan Mingri Nanometer Techn Co., Ltd. |
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