Journal
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
Volume 43, Issue 11, Pages 1663-1670Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10601320600934792
Keywords
silica aerogel; nonwoven fibers; composites; ambient pressure drying; hydrophobic; adsorption properties
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Hydrophobic silica aerogels were prepared via a sol-gel process by surface modification at ambient pressure. Nonwoven fibers were distributed inside the silica aerogels as a composite to act as a supporting skeleton which increased the mechanical property of the silica aerogels. The morphology and pore structure of the composites were characterized by scanning electron microscopy (SEM) and N-2 adsorption analyzer. The contact angle and the adsorption capacities of the composites were also determined. The results show that silica aerogels dispersed uniformly and maintained high porosity in the aerogel-fiber composites. They have excellent hydrophobic properties and are excellent adsorptive materials.
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