| 疏水型SiO2气凝胶薄膜的制备 |
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| 引用本文： | 孙骐,吴广明,周斌,黄耀东,邓忠生,马建华,沈军,王珏.疏水型SiO2气凝胶薄膜的制备[J].功能材料,2002,33(4):430-431,434. |
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| 作者姓名： | 孙骐 吴广明 周斌 黄耀东 邓忠生 马建华 沈军 王珏 |
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| 作者单位： | 同济大学波耳固体物理研究所,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目(59802007,69978017);上海市启明星及跟踪基金资助项目(99QME14041) |
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| 摘 要： | 二氧化硅气凝胶薄膜是一种应用广泛的功能材料.本文采用sol-gel技术和dip-coating镀膜工艺,在玻璃表面上形成了SiO2气凝胶薄膜,对SiO2膜层进行表面修饰处理,得到了疏水型SiO2气凝胶薄膜.研究了催化剂与老化过程对薄膜物性的影响.结果表明该疏水膜能使玻璃表面与水的接触角由50°提高至125°,有明显的疏水效果.
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| 关 键 词： | 疏水 气凝胶薄膜 表面修饰 接触角 |
| 文章编号： | 1001-9731(2002)04-0430-02 |
Preparation of hydrophobic silica aerogel films on glass |
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| SUN Qi,WU Guang ming,ZHOU Bin,HUANG Yao Dong,DENG Zhong sheng,MA Jian hua,SHEN Jun,WANG Jue.Preparation of hydrophobic silica aerogel films on glass[J].Journal of Functional Materials,2002,33(4):430-431,434. |
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| Authors: | SUN Qi WU Guang ming ZHOU Bin HUANG Yao Dong DENG Zhong sheng MA Jian hua SHEN Jun WANG Jue |
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| Abstract: | Silica aerogel film is a kind of functional material which has an abroad foreground of applications. In this paper, we report a method to obtain hydrophobic silica aerogel films in which the films were deposited on glass substrates using sol gel process and dip coating combined with surface modification. Catalyzer and aging process were also studied to improve hydrophobic property. The experimental results show that the thickness of the coating was about 300nm, its refractive index was 1.14, and that the contact angle of modified silica aerogel films reaches 125 degree, which indicates they have an excellent hydrophobic property. |
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| Keywords: | hydrophobic aerogel films surface modification contact angle |
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