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	PRODUCT DATA of Kapton H, HN

Material

Kapton H, HN

Product Type

Plastic film.

Chemical Composition

Polyimide.

Name of Manufacturer

DuPont Corporate Information Center

	EXPERIENCE IN PRACTICE

Development Status

Commercial Product

Cost Range

Medium

Lot Reproducibility

Excellent

Space Experience

Extensive

	PHYSICAL PROPERTIES

Specific Gravity

1.42 Remark:(25 micron film @ 25°C) ASTM D1505-90

	ELASTIC PROPERTIES

Tensile Modulus

3 GPa Remark:(25 micron film @ 25°C) ASTM D882-64T

	ELECTRICAL PROPERTIES

Electrical surface resistance

1e16 ohm.m Remark: (25 micron film @ 25°C) ASTM D257-61

Loss Factor

0.003 Remark: (25 micron film @ 25°C) ASTM D150-64T

Dielectric Constant

3.5 Remark: (25 micron film @ 25°C) ASTM D150-64T (1 kHz)

Dielectric Strength

276 kV/mm Remark: (25 micron film @ 25°C) ASTM D149-64

	THERMAL PROPERTIES

Thermal Conductivity

0.155 W/m.K Remark: (25 micron film @ 25°C) Data Quality: Manufacturer's data

Thermal Expansion Coefficient

20 μstrain/°C Remark:(25 micron film @ 25°C) ASTM D696-44

Specific Heat

1.09 J/g.K Remark: (25 micron film @ 25°C) Data Quality: Manufacturer's data

	OPTICAL PROPERTIES

Hemispherical Emittance

0.61 Remark:(25 micron film @ 25°C) ECSS-Q-70-09

Solar Absorbtance

0.35 Remark:(25 micron film @ 25°C) ECSS-Q-70-09 (Al. back)

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Atomic Oxygen

Etched by oxygen atoms in low earth orbit at a rate of approx. 3 x 10-24 cm3/atom.

UV Particle Effects

Δαs = 0.12 Test: 7 years/OTS spec. 75mm film

Flammability

Self-extinguishing (23.8% O2 ) Test: NASA NHB 8060-1B

Toxicity/Offgassing

Pass Test: NASA NHB 8060-1A

Temperature Range(space)

-269 to +300°C Test: Long term

Outgassing Status

Outgassing 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 Index

32.7 Test: ECSS-Q-70-21

Moisture Absorption

0.013 Test: 50% RH, 23.5°C

Ionising Radiation

5000 Mrad Test: Manufacturer's Data

	SPECIAL RECOMMENDATIONS

Special Recommendations

Water 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.