CN101760051A - Preparation method of titanium dioxide power with silicon being coated on surface - Google Patents
Preparation method of titanium dioxide power with silicon being coated on surface Download PDFInfo
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- CN101760051A CN101760051A CN200810175777A CN200810175777A CN101760051A CN 101760051 A CN101760051 A CN 101760051A CN 200810175777 A CN200810175777 A CN 200810175777A CN 200810175777 A CN200810175777 A CN 200810175777A CN 101760051 A CN101760051 A CN 101760051A
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- titanium dioxide
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- dioxide power
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Abstract
The invention provides a preparation method of titanium dioxide powder with silicon being coated on the surface, comprising the following steps of: (1) preparing titanium dioxide slurry; (2) adding Na2SiO3, heating and regulating the pH value to a target value, and enabling SiO2 to deposit on the surface of titanium dioxide; and (3) filtering, washing and drying to obtain the titanium dioxide powder with silicon being coated on the surface. The preparation method can form a compact silicon oxide film on the surface of the titanium dioxide and also improve the dispersibility, the light resistance, the weather resistance, the chalking resistance, and the like while reducing the photochemical activity of the titanium dioxide.
Description
Technical field:
The present invention relates to the preparation method of a kind of surface bag titanium dioxide power with silicon.
Background technology:
TiO
2Have the specific refractory power height, reducing power is strong, opacifying power is big, glossiness and whiteness is good, unreactiveness is high, advantage such as harmless, be industrial indispensable raw materials such as electronics, chemical industry, metallurgy, be widely used in aspects such as coating, paper, pottery, makeup, electrical condenser.But TiO
2Itself defective is arranged, and wherein the most outstanding is its photochemical activity, especially under ultraviolet irradiation, phenomenons such as loss of gloss, xanthochromia, efflorescence takes place easily in a short time at visible light.
Summary of the invention:
At previously described problem, the invention provides a kind of preparation method of silicon oxide cladding titanium dioxide powder, to reduce the photochemical activity of titanium dioxide.
Technical scheme provided by the present invention comprises the steps: 1) the configuration titania slurry; 2) add Na
2SiO
3, heating is regulated the pH value to target value, makes SiO
2Deposit to titanium dioxide surface; 3) filter, washing, drying obtains surface bag titanium dioxide power with silicon.
Wherein in the step 1), in 1000 parts by weight of deionized water, the Sodium hexametaphosphate 99 that adds the 0.5-50 weight part is a dispersion agent, adds 50-500 parts by weight of titanium dioxide powder again, dispersed with stirring 10-30min obtains homodisperse titania slurry, and wherein the titanium dioxide powder particle diameter is the 0.1-0.5 micron.
Step 2) in, in the slurry that step 1 obtains, add the water glass of 2-200 weight part, the heating slurry is to 60-95 degree centigrade, and stirring reaction 0.5-5h in the reaction process, makes pH value of slurry remain on 8-11 by adding dilute sulphuric acid.
In the step 3), filter, use deionized water wash 2-3 time,, obtain surface bag titanium dioxide power with silicon at 80-200 degree centigrade of dry 0.5-3h.
The preparation method of the silicon oxide cladding titanium dioxide powder that provides of the present invention, can form the compact silicon oxide film at titanium dioxide surface, in the photochemically reactive while of reducing titanium dioxide, can also improve dispersiveness, photostabilization, weathering resistance and the resistance to chalking etc. of titanium dioxide.
Embodiment:
Below by following preferred embodiment technical scheme of the present invention is further detailed.
Embodiment 1:
In 1000 parts by weight of deionized water, the Sodium hexametaphosphate 99 that adds 5 weight parts is a dispersion agent, add 100 weight part particle diameters again and be 0.2 micron titanium dioxide powder, dispersed with stirring 20min obtains homodisperse titania slurry, the water glass that adds 5 weight parts again, heating slurry to 90 degree centigrade, stirring reaction 1h, in the reaction process, by adding dilute sulphuric acid pH value of slurry is remained on about 9, after reaction finishes, filter, with deionized water wash 2 times,, obtain surface bag titanium dioxide power with silicon at 120 degrees centigrade of dry 2h.
Embodiment 2:
In 1000 parts by weight of deionized water, the Sodium hexametaphosphate 99 that adds 10 weight parts is a dispersion agent, add 200 weight part particle diameters again and be 0.4 micron titanium dioxide powder, dispersed with stirring 20min obtains homodisperse titania slurry, the water glass that adds 20 weight parts again, heating slurry to 90 degree centigrade, stirring reaction 2h, in the reaction process, by adding dilute sulphuric acid pH value of slurry is remained on about 10, after reaction finishes, filter, with deionized water wash 2 times,, obtain surface bag titanium dioxide power with silicon at 120 degrees centigrade of dry 2h.
Claims (4)
1. the preparation method of a surface bag titanium dioxide power with silicon comprises the steps: 1) the configuration titania slurry; 2) add Na
2SiO
3, heating is regulated the pH value to target value, makes SiO
2Deposit to titanium dioxide surface; 3) filter, washing, drying obtains surface bag titanium dioxide power with silicon.
2. the preparation method of titanium dioxide power with silicon is wrapped on the surface described in claim 1, it is characterized in that step 1) comprises: in 1000 parts by weight of deionized water, the Sodium hexametaphosphate 99 that adds the 0.5-50 weight part is a dispersion agent, add 50-500 parts by weight of titanium dioxide powder again, dispersed with stirring 10-30min obtains homodisperse titania slurry, and wherein the titanium dioxide powder particle diameter is the 0.1-0.5 micron.
3. the preparation method of titanium dioxide power with silicon is wrapped on the surface described in claim 1-2, it is characterized in that step 2) comprising: in the slurry that step 1 obtains, the water glass that adds the 2-200 weight part, the heating slurry is to 60-95 degree centigrade, stirring reaction 0.5-5h, in the reaction process, make pH value of slurry remain on 8-11 by adding dilute sulphuric acid.
4. the preparation method of the bag of the surface described in claim 1-3 titanium dioxide power with silicon is characterized in that step 3) comprises: filter, use deionized water wash 2-3 time, at 80-200 degree centigrade of dry 0.5-3h, obtain surface bag titanium dioxide power with silicon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810175777A CN101760051A (en) | 2008-11-07 | 2008-11-07 | Preparation method of titanium dioxide power with silicon being coated on surface |
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| CN200810175777A CN101760051A (en) | 2008-11-07 | 2008-11-07 | Preparation method of titanium dioxide power with silicon being coated on surface |
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| CN101760051A true CN101760051A (en) | 2010-06-30 |
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| CN200810175777A Pending CN101760051A (en) | 2008-11-07 | 2008-11-07 | Preparation method of titanium dioxide power with silicon being coated on surface |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102352135A (en) * | 2011-08-15 | 2012-02-15 | 无锡豪普钛业有限公司 | Silicon oxide coated titanium dioxide pigment and coating technology |
| CN102585559A (en) * | 2011-12-23 | 2012-07-18 | 中国科学院宁波材料技术与工程研究所 | Preparation method for high-light fastness titanium dioxide pigment |
| CN103046011A (en) * | 2011-10-12 | 2013-04-17 | 青岛大学 | Method for reducing photo-catalytic activity of nano titanium dioxide |
| CN103610602A (en) * | 2013-11-27 | 2014-03-05 | 肇庆市金三江化工有限公司 | Preparation method and applications of cosmetic suspended particles |
| CN103861653A (en) * | 2012-12-14 | 2014-06-18 | 上海郎特电力环保科技有限公司 | Modified titanium dioxide, ultrafine crystal ceramic powder, high-strength heat-engine plant denitration catalyst, and preparation methods of modified titanium dioxide, ultrafine crystal ceramic powder, and high-strength heat-engine plant denitration catalyst |
| CN104151872A (en) * | 2014-07-10 | 2014-11-19 | 池州市英派科技有限公司 | Surface-modified nano titanium dioxide with high-temperature resistance and acid-alkali resistance and preparation method thereof |
| CN104151870A (en) * | 2014-07-10 | 2014-11-19 | 池州市英派科技有限公司 | Modified nano titanium dioxide with good adhesion and preparation method thereof |
| CN104177655A (en) * | 2014-07-10 | 2014-12-03 | 池州市英派科技有限公司 | Modified nano-titanium dioxide with good dispersity and good uvioresistant effect and preparation method thereof |
| CN105219144A (en) * | 2015-09-22 | 2016-01-06 | 亚士漆(上海)有限公司 | Silicon clad nano titanium dioxide and preparation method thereof and reflective heat-insulation paint |
| CN106186905A (en) * | 2016-06-30 | 2016-12-07 | 大连理工大学 | A kind of cement-base composite material mixing bag silicon nano titanium oxide and preparation method thereof |
| CN106752111A (en) * | 2016-11-24 | 2017-05-31 | 攀枝花市钛都化工有限公司 | The coating method of rutile type titanium white |
| CN107383421A (en) * | 2017-07-14 | 2017-11-24 | 西藏亚吐克工贸有限公司 | The special titanium dioxide process of PVC calendered films |
| CN108002433A (en) * | 2017-11-30 | 2018-05-08 | 宁波激智科技股份有限公司 | A kind of modified titanium and preparation method thereof and a kind of diffusion barrier |
| CN108878824A (en) * | 2018-06-25 | 2018-11-23 | 东莞塔菲尔新能源科技有限公司 | A kind of preparation method of core-shell structure graphene coated micron silicon |
| CN109627733A (en) * | 2018-12-14 | 2019-04-16 | 金旸（厦门）新材料科技有限公司 | A kind of high whiteness high tenacity PC composition and preparation method thereof |
| CN111118882A (en) * | 2019-08-26 | 2020-05-08 | 张昌录 | Ultraviolet-proof fabric |
| CN111621171A (en) * | 2020-05-22 | 2020-09-04 | 中信钛业股份有限公司 | Method for improving compactness of silicon dioxide coating layer on surface of titanium dioxide |
| CN113234336A (en) * | 2021-05-18 | 2021-08-10 | 浙江天女集团制漆有限公司 | Preparation method of inorganic composite ultraviolet absorbent |
| CN115124784A (en) * | 2022-08-04 | 2022-09-30 | 浙江朗曼通信技术有限公司 | High-voltage direct-current-resistant cable |
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2008
- 2008-11-07 CN CN200810175777A patent/CN101760051A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352135A (en) * | 2011-08-15 | 2012-02-15 | 无锡豪普钛业有限公司 | Silicon oxide coated titanium dioxide pigment and coating technology |
| CN103046011A (en) * | 2011-10-12 | 2013-04-17 | 青岛大学 | Method for reducing photo-catalytic activity of nano titanium dioxide |
| CN103046011B (en) * | 2011-10-12 | 2016-08-24 | 青岛大学 | A kind of method reducing photo-catalytic activity of nano titanium dioxide |
| CN102585559A (en) * | 2011-12-23 | 2012-07-18 | 中国科学院宁波材料技术与工程研究所 | Preparation method for high-light fastness titanium dioxide pigment |
| CN103861653A (en) * | 2012-12-14 | 2014-06-18 | 上海郎特电力环保科技有限公司 | Modified titanium dioxide, ultrafine crystal ceramic powder, high-strength heat-engine plant denitration catalyst, and preparation methods of modified titanium dioxide, ultrafine crystal ceramic powder, and high-strength heat-engine plant denitration catalyst |
| CN103610602B (en) * | 2013-11-27 | 2016-01-20 | 肇庆金三江硅材料有限公司 | The preparation method of suspended particles used for cosmetic and application thereof |
| CN103610602A (en) * | 2013-11-27 | 2014-03-05 | 肇庆市金三江化工有限公司 | Preparation method and applications of cosmetic suspended particles |
| CN104151870A (en) * | 2014-07-10 | 2014-11-19 | 池州市英派科技有限公司 | Modified nano titanium dioxide with good adhesion and preparation method thereof |
| CN104151870B (en) * | 2014-07-10 | 2015-10-28 | 池州市英派科技有限公司 | Good modified nano-titanium dioxide of a kind of sticking power and preparation method thereof |
| CN104177655A (en) * | 2014-07-10 | 2014-12-03 | 池州市英派科技有限公司 | Modified nano-titanium dioxide with good dispersity and good uvioresistant effect and preparation method thereof |
| CN104177655B (en) * | 2014-07-10 | 2016-01-20 | 池州市英派科技有限公司 | Modified nano-titanium dioxide that a kind of scattered uvioresistant is effective and preparation method thereof |
| CN104151872B (en) * | 2014-07-10 | 2016-01-20 | 池州市英派科技有限公司 | A kind of surface-modified nano titanium dioxide with high temperature resistant soda acid and preparation method thereof |
| CN104151872A (en) * | 2014-07-10 | 2014-11-19 | 池州市英派科技有限公司 | Surface-modified nano titanium dioxide with high-temperature resistance and acid-alkali resistance and preparation method thereof |
| CN105219144A (en) * | 2015-09-22 | 2016-01-06 | 亚士漆(上海)有限公司 | Silicon clad nano titanium dioxide and preparation method thereof and reflective heat-insulation paint |
| CN106186905A (en) * | 2016-06-30 | 2016-12-07 | 大连理工大学 | A kind of cement-base composite material mixing bag silicon nano titanium oxide and preparation method thereof |
| CN106186905B (en) * | 2016-06-30 | 2018-07-13 | 大连理工大学 | A kind of cement-base composite material and preparation method thereof for mixing packet silicon nano-titanium dioxide |
| CN106752111A (en) * | 2016-11-24 | 2017-05-31 | 攀枝花市钛都化工有限公司 | The coating method of rutile type titanium white |
| CN107383421B (en) * | 2017-07-14 | 2019-06-14 | 西藏亚吐克工贸有限公司 | The dedicated titanium dioxide process of PVC calendered film |
| CN107383421A (en) * | 2017-07-14 | 2017-11-24 | 西藏亚吐克工贸有限公司 | The special titanium dioxide process of PVC calendered films |
| CN108002433A (en) * | 2017-11-30 | 2018-05-08 | 宁波激智科技股份有限公司 | A kind of modified titanium and preparation method thereof and a kind of diffusion barrier |
| CN108878824A (en) * | 2018-06-25 | 2018-11-23 | 东莞塔菲尔新能源科技有限公司 | A kind of preparation method of core-shell structure graphene coated micron silicon |
| CN109627733A (en) * | 2018-12-14 | 2019-04-16 | 金旸（厦门）新材料科技有限公司 | A kind of high whiteness high tenacity PC composition and preparation method thereof |
| CN109627733B (en) * | 2018-12-14 | 2021-01-15 | 金旸（厦门）新材料科技有限公司 | High-whiteness and high-toughness PC composition and preparation method thereof |
| CN111118882A (en) * | 2019-08-26 | 2020-05-08 | 张昌录 | Ultraviolet-proof fabric |
| CN111621171A (en) * | 2020-05-22 | 2020-09-04 | 中信钛业股份有限公司 | Method for improving compactness of silicon dioxide coating layer on surface of titanium dioxide |
| CN111621171B (en) * | 2020-05-22 | 2022-02-08 | 中信钛业股份有限公司 | Method for improving compactness of silicon dioxide coating layer on surface of titanium dioxide |
| CN113234336A (en) * | 2021-05-18 | 2021-08-10 | 浙江天女集团制漆有限公司 | Preparation method of inorganic composite ultraviolet absorbent |
| CN115124784A (en) * | 2022-08-04 | 2022-09-30 | 浙江朗曼通信技术有限公司 | High-voltage direct-current-resistant cable |
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Open date: 20100630 |