New Type of Aerogel

  • Author: Veronika Belusa
  • Published Date: 03 July 2014
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: New Type of Aerogel

Aerogels are solids with low density, high porosity, and a large internal surface area. They show outstanding performances as thermal, acoustic, or electrical insulators. However, their fabrication is energy and time-consuming and most aerogels are mechanically brittle and optically opaque.

Yuri Kobayashi, Tsuguyuki Saito, and Akira Isogai, University of Tokyo, Japan, prepared a structurally new type of aerogel which is transparent and combines mechanical toughness and good heat insulation properties. The aerogel has a three-dimensionally ordered nanofiber skeleton of liquid-crystalline nanocellulose (LC-NCell). The LC-NCell is produced from native wood cellulose through a water-based process with only a low energy input.

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