Methods of modification of SiO2 aerogels

Kai Yang*, Jia Wei Pang, Bo Rong Wu, Shi Chen, Feng Wu, Dong Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)833-837
Number of pages5
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume29
Issue number9
Publication statusPublished - Sept 2009

Keywords

  • Modification
  • SiO aerogels
  • Sol-gel method

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