| TiO2光致亲水性及其在免处理版材中的应用研究 |
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| 引用本文： | 余明光,陈广学,陈奇峰,黄文涛,屈贞财,朱志伟.TiO2光致亲水性及其在免处理版材中的应用研究[J].影像科学与光化学,2012,30(1):71-77. |
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| 作者姓名： | 余明光 陈广学 陈奇峰 黄文涛 屈贞财 朱志伟 |
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| 作者单位： | 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640 |
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| 摘 要： | 用溶胶-凝胶法制备了SiO2和TiO2薄膜,并涂覆于玻璃基片上,研究了TiO2薄膜在紫外光照射下其超亲水性能的变化与光照时间的关系,分析了SiO2薄膜对覆于其上的TiO2薄膜的耐摩擦性能的影响.结果表明:TiO2薄膜经紫外光照射后,疏水性急剧降低,显示亲水性能,与水的接触角可达到5°以下;当其覆膜于载玻片上后,具有良好的耐摩擦性和耐候性;TiO2薄膜的超亲水性使其有望成为一种新型的环保可重复利用的印刷版材.
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| 关 键 词： | SiO2 TiO2薄膜 超亲水性 耐摩擦性 印刷板材 |
| 收稿时间： | 2011-07-05 |
Study on Super-Hydrophilic of TiO2 and Erasable Printing Plates |
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| YU Ming-guang
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CHEN Guang-xue
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CHEN Qi-feng
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HUANG Wen-tao
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QU Zhen-cai
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ZHU Zhi-wei.Study on Super-Hydrophilic of TiO2 and Erasable Printing Plates[J].Imaging Science and Photochemistry,2012,30(1):71-77. |
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| Authors: | YU Ming-guang CHEN Guang-xue CHEN Qi-feng HUANG Wen-tao QU Zhen-cai ZHU Zhi-wei |
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| Institution: | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, P.R.China |
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| Abstract: | Based on using sol-gel to prepare SiO2 and TiO2 films and coating on the glass substrate,this paper studied on TiO2 thin film under UV irradiation and its super-hydrophilic properties changing with the light of time,analyzed the SiO2 film on the cover TiO2 film on its friction properties.The results showed that: hydrophobicity of TiO2 thin films by ultraviolet irradiation drastically reduced,showed super hydrophilic properties and water contact angle could reach 5° below;when the films was coated on the glass slide,they showed the good rubbing and weather resistance.These results show that: the super hydrophilicity of TiO2 is expected as a new type of environmentally friendly reusable printing plate. |
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| Keywords: | SiO2 TiO2 thin film super-hydrophilic abrasion resistance printing plate |
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