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PRODUCT DATA of Dunmore DE320
MaterialDunmore DE320
Product TypeThermal Control Polymer Film.
Chemical CompositionPolyimide (Kapton HN), Aluminised.
Name of ManufacturerDunmore Coorperation
Keystone Industrial Park, 2900 Wharton Rd., Bristol, PA 19007, USA
+1 215 781 8895
+1 215 781 9293
www.dunmore.com
EXPERIENCE IN PRACTICE
Development StatusSpecial Commercial Product
Cost RangeHigh
Lot ReproducibilityHigh
Space ExperienceGood
PHYSICAL PROPERTIES
Specific Gravity1.42
Data Quality: Manufacturer's data
Standard Width112 mm
Data Quality: Manufacturer's data
Thickness0.025 mm
Data Quality: Manufacturer's data
ELECTRICAL PROPERTIES
Electrical Volume Resistivity1.5e15 ohm.m
Data Quality: Manufacturer's data
THERMAL PROPERTIES
Thermal Conductivity0.155W/m.K @ 23°C
Data Quality: Manufacturer's data
Thermal Expansion Coefficient20 μstrain/°C (-14 to 38 °C)
Data Quality: Manufacturer's data
Specific Heat1.09 J/g.K @ 23°C
Data Quality: Manufacturer's data
OPTICAL PROPERTIES
Solar Absorbtance0.14
Remark: aluminised surface)
Data Quality: Manufacturer's data
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
Temperature Range(space)-190 to +204°C
Test:Average exposure range
Outgassing(Avg data)TML = 0.21%, CVCM = 0.00%
Test:ASTM E-595
Moisture Absorption1.8% @ 23°C and 50% RH
Data Quality: Manufacturer's data
SPECIAL RECOMMENDATIONS
Special RecommendationsNormal use is for external sheet on multilayer insulation (MLI). Suitable venting must be provided, where applicable. · This product is also available in 7.6, 12.6, 51.76 and 125 micron thicknesses. · The 7.6 and 12.6 micron grades are available in widths up to 1270 micron; 25 to 125 micron grades in widths up to 1524 micron. · The full Dunmore part number must be designated for precise material description. · Perforated or embossed versions of the above-mentioned films are available. Patterns are to be specified at the time of ordering (film thickness may determine selection). · These products can also be aluminised on both sides, if desired. · Solar absorptance value is measured on the aluminised surface.