A new article is focused in particular on organic aerogels produced from phenolic compounds obtained upon processing Estonian oil shale, i.e. from local raw material. In order to produce highly porous aerogel from gel, supercritical extraction with carbon dioxide is used, in the process of which liquid is replaced by gas resulting in aerogel – a very light and porous material.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2019/02/190213124427.htm
via Tumblr http://ndbasilica.tumblr.com/post/182785275779
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