© 2008 TAASI Corporation. The ATTIA Applied Sciences Inc.

Recent Developments with Aerogel Technologies

Aerogels World Summit 2008, October 15-17

Dr. Yosry A. AttiaTAASI Corporation

TAASIPristinaTM

aerogel technologies

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Consider the following…

"Aerogel is predicted to be one of the most important materials of the 21-century.”

TAASI Corporation has developed a range of engineered Aerogel materials for commercial applications under the trade name of Pristina™ Aerogels.

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What is an aerogel?

Aerogels are advanced man-made nanophase materials, having high porosity and surface area, varied chemical structures, and fascinating useful properties. Thus, Aerogels are materials with a vast potential for improving our daily lives.

Features of Aerogels

• Lowest solid density

• Highest porosity

• Very high surface area

• Low dielectric constant

• Low refractive index

• Versatile compositions

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How are Aerogels formed?

An Aerogel is formed when a wet sol-gel upon drying, releases entrapped liquid while maintaining a gel structure, thus resulting in a highly porous, air-filled gel.

Aerogel was first prepared over 65 years ago by Samuel Stevens Kistler, and although this was an extraordinary scientific achievement, industry found it troublesome to work with Aerogel based on its fragile form. Aerogel was also difficult to market commercially because of a cost limiting process.

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PristinaTM Aerogel Embedded in Polyethylene Sheets

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Zinc Selenide Flexible Aerogel Sheet

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Fluorinated Polyimide

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Silica Aerogel Tiles: 1mm x 1mm x 0.9mm

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Polyethylene Aerogel:Density: 0.03-0.06g/cc

Thickness: Several mm to less than 1mm

Computer Wafers: Thickness: 0.4mm & 0.9mm

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Aerogels In Food Processing

Aerogels were used to increase the wettability of food powder products such as Slim Fast in order to improve processing cost.

The Slim fast containing 1% Aerogel powder improved wettability 60% compared to Slim fast without Aerogel.

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Airglass® Double Window Pane with Aerogel Inside for Anderson Windows

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PristinaTM Aerogel Cigarette Filters

PristinaTM ST31 Aerogel for Selective Adsorption/Removal of Specific Volatile Compounds from Cigarette Tobacco Smoke

Volatile Compound

Adsorption/ Removal%

Methanol 83

Acetaldehyde 61

Methyl Cyanide 77

Acrolein 86

Furan 35

Propionaldehyde 74

Acetone 85

Acrylonitrile 69

Volatile Compound

Adsorption/ Removal %

Isoprene 42

Butyraldehyde 79

Butanone 87

Butadione 83

Crotonaldehyde 44

Benzene 19

Toluene 50

PristinaTM Tricat Aerogel Catalyst

Function:

Adsorption, Catalyst

Application:

Conversion of CO in assisted breathing masks.

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TAASI PRISTINA™ AEROGEL CATALYST CATALYTIC CONVERSION OF CARBON MONOXIDE (CO)

TIME, MINUTES A-INLET, CO%(PPM)

B-OUTLET, CO%(PPM)

CONVERSIONCO% [(A-B/A)100]

I- Aerogel Tricat-A2:

2:300.2

(2,000)0.03 87.5

Repeat Tricat-A2:

2:150.3

(3,000)0.10 66.7

II-Commercial P.M. Catalyst: 2:15

0.3 (3,000)

0.18 41.7

Airflow rate = 30LPM; 28-30C ; RH 85%; Test period = 2:15 & 2:30 minutes