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PRODUCT DATA of Kapton H, HN
MaterialKapton H, HN
Product TypePlastic film.
Chemical CompositionPolyimide.
Name of ManufacturerDuPont Corporate Information Center
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Cost RangeMedium
Lot ReproducibilityExcellent
Space ExperienceExtensive
PHYSICAL PROPERTIES
Specific Gravity1.42
Remark:(25 micron film @ 25°C) ASTM D1505-90
ELASTIC PROPERTIES
Tensile Modulus3 GPa
Remark:(25 micron film @ 25°C) ASTM D882-64T
ELECTRICAL PROPERTIES
Electrical surface resistance1e16 ohm.m
Remark: (25 micron film @ 25°C) ASTM D257-61
Loss Factor0.003
Remark: (25 micron film @ 25°C) ASTM D150-64T
Dielectric Constant3.5
Remark: (25 micron film @ 25°C) ASTM D150-64T (1 kHz)
Dielectric Strength276 kV/mm
Remark: (25 micron film @ 25°C) ASTM D149-64
THERMAL PROPERTIES
Thermal Conductivity0.155 W/m.K
Remark: (25 micron film @ 25°C)
Data Quality: Manufacturer's data
Thermal Expansion Coefficient20 μstrain/°C
Remark:(25 micron film @ 25°C) ASTM D696-44
Specific Heat1.09 J/g.K
Remark: (25 micron film @ 25°C)
Data Quality: Manufacturer's data
OPTICAL PROPERTIES
Hemispherical Emittance0.61
Remark:(25 micron film @ 25°C) ECSS-Q-70-09
Solar Absorbtance0.35
Remark:(25 micron film @ 25°C) ECSS-Q-70-09 (Al. back)
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
Atomic OxygenEtched by oxygen atoms in low earth orbit at a rate of approx. 3 x 10-24 cm3/atom.
UV Particle EffectsΔαs = 0.12
Test: 7 years/OTS spec. 75mm film
FlammabilitySelf-extinguishing (23.8% O2 )
Test: NASA NHB 8060-1B
Toxicity/OffgassingPass
Test: NASA NHB 8060-1A
Temperature Range(space)-269 to +300°C
Test: Long term
Outgassing StatusOutgassing is informative. Usually waved due to low RML
Outgassing(Avg data)TML = 1.3%, RML = 0.2%, CVCM = 0.02%
Test: ECSS-Q-70-02
Oxygen Index32.7
Test: ECSS-Q-70-21
Moisture Absorption0.013
Test: 50% RH, 23.5°C
SPECIAL RECOMMENDATIONS
Special RecommendationsWater desorption corresponds to a geometrical shrinkage & a change in hemispherical emittance. · Available thickness range from 7.6 to 127 mm; max. width: 1320 mm. Thinner film may be available soon. · Flammability depends on film thickness. · Etched by oxygen atoms in low earth orbit at a rate of approx. 3 x 10-24 cm3/atom.