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Nano-sized Alumina Powder
The CAM 9010 is a synthetic, nitrate stabilized, colloidal
alumina monohydrate having unique particle characteristics.
It is a white, relatively high density powder that is dust
free and easy to handle. This chemically derived powder has
extremely small ultimate crystallites that are elongated
in shape and high purity. It has the ability to disperse
to a nanoscale in aqueous media and also in a number of thermoplastic
polymer systems using standard compounding/processing techniques
and without the necessity of coupling agents. It contains
chemically and physically bound water, which can provide
fire retardant properties. Its applications can include reinforcement
and reheology control for aqueous and organic systems including
adhesives, sealants, coatings, composites and inks.
Typical Properties
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| B.E.T. Surface Area |
120 m²/g |
| pH (10 % Aqueous Sol) |
4 |
| Loss on Ignition |
(1100º C) 20 % |
| Free Moisture |
< 5 % |
| Specific Gravity |
2.9 |
| Bulk Density |
0.7 g/cc |
| Refractive Index |
1.55 |
| Crystallite Size |
60 nm x 15 nm |
| Particle Aspect Ratio |
> 3 |
| Alumina Monohydrate |
> 98.0 % |
| Nitrate (% on dry powder basis) |
2.0 % |
| Free Crystalline Silica |
Not Detectable |
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Cam 9010 is an effective gelling powder when mixed
with very low levels of activator. In laboratory
tests, a stable and reversible gel was attained with
a 5% solids solution and very low levels of activator.
Once set, the gel time will shear thin and will re-gel
time after time.
In a 5 % solution and using magnesium sulfate,
the ratio of activator to Cam 9010 powder was 6:100
parts by dry weight. Using calcium sulfate, the
ratio was 2.5:100 parts by dry weight.
Product Properties
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Controlled manufacturing yields
lot to lot consistency, which gives consistent
performance
in all applications.
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Particle integrity of finely
dispersed nanosize “ rods” is
maintained, allowing for maximum reinforcement
and / or green strength properties.
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Self-dispersing
to nanoscale in polar solutions, typically
without any treatments required.
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Very low
dusting and free flowing, grit free product.
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Typically
less than 5% moisture.
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Contains chemically and
physically bound water, most of which is
retained under temperatures
of 300º C.
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Stirs in with
low shear mixing in aqueous
matrices.
Applications
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Can be used to reduce or
replace traditional thickeners.
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Can be used
in organic and
inorganic systems.
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Anti-setting,
anti-sag properties can be improved
when gel
structure is formed.
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Low
yield point of gel structures
allows for quick, easy flow under
low
shear
conditions.
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Ultra fine particle
size can allow use in aqueous spray
applications.
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Can
improve green strength of
ceramic materials.
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