Transcript Senior Technical Director Application Portfolios

Quality
Pristina
TM
Aerogels
T A A S I
PristinaTM
aerogel technologies
Recent Developments with Aerogel
Technologies
Aerogels World Summit 2008, October 15-17
Dr. Yosry A. Attia
TAASI Corporation
© 2008 TAASI Corporation.
The ATTIA Applied Sciences Inc.
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
•
Low dielectric constant
•
Highest porosity
•
Low refractive index
•
Very high surface area
•
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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TM
Pristina 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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Pristina
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TM
Aerogel Cigarette Filters
PristinaTM ST31 Aerogel for Selective
Adsorption/Removal of Specific Volatile
Compounds from Cigarette Tobacco Smoke
Volatile
Compound
Adsorption/
Removal%
Volatile
Compound
Adsorption/
Removal %
Methanol
83
Isoprene
42
Acetaldehyde
61
Butyraldehyde
79
Methyl Cyanide
77
Butanone
87
Acrolein
86
Butadione
83
Furan
35
Crotonaldehyde
44
Propionaldehyde
74
Benzene
19
Acetone
85
Toluene
50
Acrylonitrile
69
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
I- Aerogel Tricat-A2:
2:30
Repeat Tricat-A2:
2:15
II-Commercial P.M. Catalyst:
2:15
A-INLET,
CO%(PPM)
B-OUTLET,
CO%(PPM)
CONVERSION
CO% [(AB/A)100]
0.2
(2,000)
0.03
87.5
0.3
(3,000)
0.10
66.7
0.3
(3,000)
0.18
41.7
Airflow rate = 30LPM; 28-30C ; RH 85%; Test period = 2:15 & 2:30
minutes
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