Effect of heat treatment on hydrophobic silica aerogel
Abstract
Secondary particles within silica aerogel gets coalesced when heat treated. The detailed pyrolysis of hydrophobic silica aerogel can be divided into 3 steps. Under 350℃ heat treating, the aerogel gets to its optimum for thermal insulation. C decreases but still exists in the silica aerogel after heat treated.
- Publication:
-
Journal of Hazardous Materials
- Pub Date:
- January 2019
- DOI:
- 10.1016/j.jhazmat.2018.08.087
- Bibcode:
- 2019JHzM..362..294H
- Keywords:
-
- Silica aerogel;
- Heat treatment;
- Pyrolysis;
- Thermal conductivity;
- Gross heat of combustion