Why is aerogel so expensive? - aerogel price why is aerogel so expensive
What exactly happens in the production Airgel Airgel the price for a price so high?
Wednesday, February 3, 2010
Aerogel Price Why Is Aerogel So Expensive Why Is Aerogel So Expensive?
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Airgel is produced by the release of water into a colloidal silica gel without changing its overall structure. When the gels under normal temperatures and pressures, the surface tension of the small pores in the gel makes the market structure and reduces the volume approximately 10 times the first. By Airgel, is a gel bar in a container at a higher temperature (280 ° C or 536 ° F) and (pressure of 1800 or 1241 set Newtons) per square centimeter. This makes the liquid inside the gel into a supercritical state, so that a phase transition from liquid to gas without concomitant contraction that causes a collapse of the fine structure of the gel. This process is known as supercritical drying. In the first trial lasted several days to create the aerogels, but improvements are the drying time of several hours, compressed. The process is still energy and hunger, which leads to high cost of aerogels. \\ \\ \\ \\ \\ \\ \\ \\ U0026lt a href = "... What is Airgel http://www.wisegeek.com/what-is-ae? \\ \\ \\ \\ \\ \\ \\ \\ U0026lt; / a>
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