摘要
In order to improve the intencity of the gelation network of SiO2 aerogels prepared by the sol-gel method, three modification methods of SiO2 aerogels are studied. SiO2 aerogels were produced from TEOS as silicon resources by sol-gel method and surface modification at ambient pressure. Fourier transform infrared spectrometer (FT-IR) results showed that the SiO2 aerogels had good hydrophobic property. It is discovered that SiO2 aerogels have better properties when the surface modification condition is: at ψ(TMCS)=6% of hexane, surface modification time 24 hours.
源语言 | 英语 |
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页(从-至) | 833-837 |
页数 | 5 |
期刊 | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
卷 | 29 |
期 | 9 |
出版状态 | 已出版 - 9月 2009 |