Presentation on theme: "Dr. Yosry A. Attia TAASI Corporation"— Presentation transcript:
1Dr. Yosry A. Attia TAASI Corporation AerogelsPristina TMQualityTAASIPristinaTMaerogel technologiesRecent Developments with Aerogel Technologies Aerogels World Summit 2008, October 15-17Dr. Yosry A. AttiaTAASI Corporation
2Consider 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.Page 2
3What is an aerogel? Features of Aerogels Lowest solid density 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 AerogelsLowest solid densityHighest porosityVery high surface areaLow dielectric constantLow refractive indexVersatile compositionsPage 3
4How 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.Page 4
5PristinaTM Aerogel Embedded in Polyethylene Sheets Page 5
11Aerogels 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.
12Airglass® Double Window Pane with Aerogel Inside for Anderson Windows Page 12
14PristinaTM ST31 Aerogel for Selective Adsorption/Removal of Specific Volatile Compounds from Cigarette Tobacco SmokeVolatile CompoundAdsorption/ Removal%Methanol83Acetaldehyde61Methyl Cyanide77Acrolein86Furan35Propionaldehyde74Acetone85Acrylonitrile69Volatile CompoundAdsorption/ Removal %Isoprene42Butyraldehyde79Butanone87Butadione83Crotonaldehyde44Benzene19Toluene50
15PristinaTM Tricat Aerogel Catalyst Function:Adsorption, CatalystApplication:Conversion of CO in assisted breathing masks.
16TAASI PRISTINA™ AEROGEL CATALYST CATALYTIC CONVERSION OF CARBON MONOXIDE (CO) TIME, MINUTESA-INLET, CO%(PPM)B-OUTLET, CO%(PPM)CONVERSIONCO% [(A-B/A)100]I- Aerogel Tricat-A2:2:300.2 (2,000)0.0387.5Repeat Tricat-A2:2:150.3 (3,000)0.1066.7II-Commercial P.M. Catalyst: 2:150.1841.7Airflow rate = 30LPM; 28-30C ; RH 85%; Test period = 2:15 & 2:30 minutesPage 16