Aerogel: Difference between revisions
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*A gel with the liquid replaced with a gas | *A gel with the liquid replaced with a gas | ||
*Tends to be ultralight, very insulative to convective and conducttive heat (not radiative however) | *Tends to be ultralight, very insulative to convective and conducttive heat (not radiative however) | ||
=Production= | |||
Produced from sodium silicate [https://en.wikipedia.org/wiki/Aerogel#Silica_Aerogel], which is in turn produced from sand and soda (caustic). To get gel, sodium silicate is acidified [https://en.wikipedia.org/wiki/Silica_gel#Preparation]. Silica aerogel is produced from silica gel. [https://en.wikipedia.org/wiki/Aerogel#Silica_Aerogel]. Thus, the starting materials cost for all starting materials is standard (<$1/lb), and the feedstocks are abundant. This is [[OSE Spec]] as a potential next generation insulation material. | |||
=Cost= | |||
*Starting to be used in house insulation? [https://www.apartmenttherapy.com/aerogel-becomes-affordable-as-107942] | |||
=Used For= | =Used For= | ||
Latest revision as of 14:22, 3 May 2022
Basics
- A gel with the liquid replaced with a gas
- Tends to be ultralight, very insulative to convective and conducttive heat (not radiative however)
Production
Produced from sodium silicate [1], which is in turn produced from sand and soda (caustic). To get gel, sodium silicate is acidified [2]. Silica aerogel is produced from silica gel. [3]. Thus, the starting materials cost for all starting materials is standard (<$1/lb), and the feedstocks are abundant. This is OSE Spec as a potential next generation insulation material.
Cost
- Starting to be used in house insulation? [4]
Used For
- Many, many things
- Insulation
- Catalysts
- Optics
- Chemical Absorbant (For spill cleanups etc)
- Electronics (Supercapacitors)
- High Tech/Scientific Research Use Cases
- Aircraft (Lighter internal structure, electric deicing)
Useful Links
- Wikipedia Page on Aerogel
- An Information Page (aerogel.org) says open source? has instructions and info mainly
- A Video by the Voutube Channel "NileRed" on lab scale production of small amounts of Silica aerogel (~5cm*5cm*1cm rectangular prisms)