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Silica Aerogels Formed From Soluble Silicates and MTMs Using CO2 as a Gelation Agent

UW ID: 18-017


Description of Technology

          Silica aerogel is a super lightweight material that is made up of 95% air. It is very strong in compression with respect to its weight. This material has been around for a long time but uses are just starting to surface as it become more available. One of these uses is to insulate electronics on NASA’s Mars Exploration Rovers. Silica aerogel is still expensive to produce which is keeping it from entering into the mainstream market.

          Researchers at the University of Wyoming have invented a new method of creating silica aerogels from soluble silicates and methyltrimethoxylsilane (MTM) using CO2 as a gelation agent. The process starts by mixing a water glass solution with a MTM material to form a silicate material. This is then exposed to water and then alcohol to form an alcogel material. A surface modification is performed on the alcogel material and then it is finally dried at ambient pressure to form a silica aerogel. Because the aerogel is dried at ambient pressure, it is a low-cost process compared to traditional ways of creating silica aerogel that require an elevated pressure drying process. This new method is also more straightforward than traditional methods because there is no ion exchange resin used. The silica aerogel that is created has a silica polymer-like chain size of about 10-20nm.

 

Applications

          This new method of creating silica aerogel can be used to lower costs because it is dried at ambient temperature and not in pressure chambers.

 

Features & Benefits

  • Dried in ambient temperature
  • No ion exchange resin used
  • Silica polymer-like chain size of about 10-20nm
  • Low cost process
  • Straightforward process

Downloadable PDF: 18-017

Inventors: 

Maohong Fan

Xiaodong Wu

Xiaodong Shen

Sheng Cui

Gang Tan


Patent Status:  

Patent Pending

 

Contact Us: 

University of Wyoming Technology Transfer and Research Products Center 

Dept. 3672

1000 E. University Ave. 

Laramie, WY 

82071 

Phone: 307-766-2520

Fax: 307-766-2530

Email: WyomingInvents@uwyo.edu


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Wyoming Technology Transfer and Research Products Center

Dept. 3672

1000 E. University Ave.

Laramie, WY 82071

Phone: (307) 766-2520

Fax: (307) 766-2530

Email: WyomingInvents@uwyo.edu

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