A.17.9. Dunmore
TM05564
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PRODUCT |
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Type |
Thermal Control Plastic Film |
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Chemical Composition |
Fluorocarbon (FEP-Type C), Aluminised |
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Manufacturer |
Dunmore Corporation Keystone
Industial Park, 2900 Wharton Rd. Bristol,
PA 19007 USA |
Tel: +1 215 781 8895 Fax: +1 215 781 9293 Email: www.dunmore.com |
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EXPERIENCE & AVAILABILITY |
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Development Status |
Special Commercial Product |
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Cost Range |
High |
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Lot Reproducibility |
Good |
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Space Experience |
Limited |
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GENERAL PROPERTIES (Physical,
Mechanical, Thermal, Electrical, Optical) |
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Nature |
Typical Value |
Remarks |
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Specific Gravity |
2.15 |
Dupont Data |
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Thickness |
50 mm |
Manufacturer's Data |
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Tensile Strength |
21 MPa |
Manufacturer's Data |
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Thermal Expansion Coefficient |
89.3 x 10-6 °C -1 |
Dupont Data (-50 to +70°C) |
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Thermal Conductivity |
0.194 W m -1 °C -1 |
Dupont Data |
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Specific Heat |
1.17 J g-1 °C -1 |
Dupont Data (-50 to +70°C) |
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Dielectric Strength |
160 kV mm -1 (of FEP Film) |
Dupont Data (@ 23°C) |
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Surface Resistance |
>1015 W £ |
Dupont Data / ASTM D257-61 |
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Volume Resistivity |
>1015 W m |
Dupont Data (@ 23°C & 38% RH) |
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Solar Absorptance: |
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Aluminised
Surface |
0.07 |
ASTM E424 Method A |
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Film
Side |
0.10 |
ASTM E424 Method A |
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Normal Emittance: |
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Aluminised
Surface |
0.02 |
ASTM E408 Method A |
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Film
Side |
0.67 |
ASTM E408 Method A |
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Standard Width |
122 cm |
Manufacturer's Data |
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PROPERTIES RELEVANT TO SPACE USE |
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Nature |
Typical Value |
Type of Test |
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Temperature Range |
-175 to +150°C. Max. Operating Temp. 205°C |
Dupont Data |
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Outgassing |
TML = 0.21%, CVCM = 0.00% |
ASTM E-595 |
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Moisture Absorption |
1.3% @ 50% RH |
Dupont Data (@ 23°C) |
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SPECIAL RECOMMENDATIONS |
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·
Normal use is for external sheet on multilayer
insulation (MLI). Suitable venting is recommended ·
This product is also available in 8, 12, 75 and 125 mm
thicknesses. ·
Available in a range of widths, depending on film
thickness. ·
Also available in two(2)-side-treated form for VDAL
bonding, designated as Type C-20; to be specified at time of purchase. ·
The full Dunmore part number must be designated for
precise material description. ·
Perforated versions of the above-mentioned films are
available. Patterns are to be specified at the time of ordering. |
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