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High temperature
materials can be manufactured cost effectively using high yield,
thermally stable, silicon carbide (SiC) or silicon oxycarbide (SiOC)
forming polymers. A number of SiC forming polymers are
commercially available products, while the SiOC precursors are
currently available to commercialized .
|
Property |
SiOC forming Polymers |
SiC forming Polymers |
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Density (g/cc) |
0.99 – 1.15 |
0.998 |
|
Appearance |
Clear, slightly milky |
Clear, Amber Color |
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Viscosity (cPs) |
10-10,000 |
40-100 |
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Solubility |
Hexane, Tetrahydrofuran, Acetone, Toluene, Xylene,MEK |
Hexane, Tetrahydrofuran, Acetone, Toluene,
Xylene |
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Surface Tension (dynes/ cm2) |
~ 26 |
~ 30 |
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Melting Point °C/°F |
Less than -100/-148 |
Less than -100/-148 |
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Flashpoint °C/°F |
49/120 to 92/200 |
89/192 |
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Boiling Point °C/°F |
N/A
– cure first |
160/320 |
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Nominal Cure Temperature With Catalyst °C/°F |
100-250/212-482 |
130-220/270
- 400 |
Both types of precursors are low viscosity liquids, with low
surface tensions, that provide for excellent wetting of fibers,
powders and preforms. They typically cure with a platinum or
peroxide catalyst at temperatures below 200°C. These polymer types
are soluble in solvents such as hexane, tetrahydrofuran, toluene,
xylene and acetone. Both classes of
DLC polymers have high ceramic
yield when processed under inert gas to 800°C to 1400°C. The SiOC
precursors can be cured in air but the SiC precursors should be
cured in an inert environment.
If you don't find what you're looking for,
Contact Us.
We may have a suitable product that's not listed, or we may be
able to develop a material to fit your specific needs.
Tel : (02)2217-3442 / Fax : (02)2704-4070
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