Journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Volume 67, Issue 3, Pages 646-653Publisher
SPRINGER
DOI: 10.1007/s10971-013-3124-4
Keywords
Silica aerogel; Sepiolite fiber; Morphology; Structure; Mechanical properties; Thermal properties
Categories
Funding
- National Natural Science Foundation of China [51172157]
Ask authors/readers for more resources
Sepiolite fiber-reinforced silica aerogel composites for thermal insulators were prepared by dispersing sepiolite fiber in silica sol, aging, solvent exchanging, and drying in supercritical fluid. The surface treated sepiolite fiber and sepiolite/silica aerogel composite were characterized by scanning electron microscope; transmission electron microscope and Fourier transform infrared spectroscopy. The influence of surface treated sepiolite fiber on the mechanical and thermal properties of the aerogel composite was studied. The results indicate the hydroxyl groups on silica sol particles surface able to condense with the hydroxyls of sepiolite fibers with forming Si-O-Si between sepiolite fibers and aerogel matrix in the sol-gel process, which achieves excellent interfacial interaction in the sepiolite/silica aerogel composite, so the mechanical properties of the aerogel composite have been improved effectively without sacrificing much thermal insulating performance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available