Surface Organic Modification of TiO2 Powder and Relevant Characterization
Surface organic modification was conducted to TiO2 with modifiers to improve the dispersity and comparability of pigment TiO2 in application system by adjusting particle surface characteristics. Then, modification effects were characterized according to the changes in wetting contact angle and activ...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/9562612 |
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| _version_ | 1832552128525107200 |
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| author | Hong Zhou Sijia Sun Hao Ding |
| author_facet | Hong Zhou Sijia Sun Hao Ding |
| author_sort | Hong Zhou |
| collection | DOAJ |
| description | Surface organic modification was conducted to TiO2 with modifiers to improve the dispersity and comparability of pigment TiO2 in application system by adjusting particle surface characteristics. Then, modification effects were characterized according to the changes in wetting contact angle and activation index of TiO2 before and after modification. Moreover, the modification mechanisms of sodium stearate and sodium oleate were studied by analyzing the characteristics of TiO2 surface functional groups in modification system and effects of modifiers. The results showed that, after being wet-processed with sodium stearate and sodium oleate, TiO2 could turn from surface hydrophilic to inductive hydrophobic with controllable degree. The wetting contact angle of modified TiO2 increased from 7° to 125.6° and 121.3°, respectively. The dispersity of TiO2 in organic medium was stronger than that in inorganic medium. The modifiers formed absorption with chemical property on TiO2 particle surface, so the inductive hydrophobicity of surface was stable. |
| format | Article |
| id | doaj-art-f82be9d366114467b4a2bdb33fd06c09 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f82be9d366114467b4a2bdb33fd06c092025-02-03T05:59:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/95626129562612Surface Organic Modification of TiO2 Powder and Relevant CharacterizationHong Zhou0Sijia Sun1Hao Ding2Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaSurface organic modification was conducted to TiO2 with modifiers to improve the dispersity and comparability of pigment TiO2 in application system by adjusting particle surface characteristics. Then, modification effects were characterized according to the changes in wetting contact angle and activation index of TiO2 before and after modification. Moreover, the modification mechanisms of sodium stearate and sodium oleate were studied by analyzing the characteristics of TiO2 surface functional groups in modification system and effects of modifiers. The results showed that, after being wet-processed with sodium stearate and sodium oleate, TiO2 could turn from surface hydrophilic to inductive hydrophobic with controllable degree. The wetting contact angle of modified TiO2 increased from 7° to 125.6° and 121.3°, respectively. The dispersity of TiO2 in organic medium was stronger than that in inorganic medium. The modifiers formed absorption with chemical property on TiO2 particle surface, so the inductive hydrophobicity of surface was stable.http://dx.doi.org/10.1155/2017/9562612 |
| spellingShingle | Hong Zhou Sijia Sun Hao Ding Surface Organic Modification of TiO2 Powder and Relevant Characterization Advances in Materials Science and Engineering |
| title | Surface Organic Modification of TiO2 Powder and Relevant Characterization |
| title_full | Surface Organic Modification of TiO2 Powder and Relevant Characterization |
| title_fullStr | Surface Organic Modification of TiO2 Powder and Relevant Characterization |
| title_full_unstemmed | Surface Organic Modification of TiO2 Powder and Relevant Characterization |
| title_short | Surface Organic Modification of TiO2 Powder and Relevant Characterization |
| title_sort | surface organic modification of tio2 powder and relevant characterization |
| url | http://dx.doi.org/10.1155/2017/9562612 |
| work_keys_str_mv | AT hongzhou surfaceorganicmodificationoftio2powderandrelevantcharacterization AT sijiasun surfaceorganicmodificationoftio2powderandrelevantcharacterization AT haoding surfaceorganicmodificationoftio2powderandrelevantcharacterization |