A.17.1. Sheldahl 146368

PRODUCT

Type

Thermal-control polymer film.

Chemical Composition

Fluorocarbon (FEP), Silver and Inconel coated.

Manufacturer

Sheldahl

††††††††† 1150 Sheldahl Rd.

††††††††† Northfield, MN 55057

††††††††† USA

Tel: +1 507 663 8000

Fax: +1 507 663 8545

Email: sheldahl.info@sheldahl.com

www.sheldahl.com

EXPERIENCE & AVAILABILITY

Development Status

Special Commercial Product

Cost Range

High

Lot Reproducibility

Good

Space Experience

Limited

GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)

Nature

Typical Value

Remarks

Specific Gravity

2.15

DuPontís Data

Thickness

50 mm

Manufacturerís Data

Standard Width

1220 mm

Manufacturerís Data

Ultimate Tensile Strength

21 MPa

DuPontís Data, 298 K

Thermal Expansion Coefficient

83 x 10-6 įC-1

DuPontís Data, 223 - 343 K

Thermal Conductivity

0.194 W m-1 įC-1

DuPontís Data, 223 - 343 K

Specific Heat

1.17 J g-1 įC-1

DuPontís Data, 223 - 343 K

Dielectric Strength (of FEP film)

160 kV/mm

DuPontís Data, 296 K

Surface Resistance

> 1015 W £

DuPontís Data, 296 K

Volume Resistivity

> 1015 W m

DuPontís Data, 296 K, 38% RH

Solar Absorbtance

0.10

Typical value only

Thermal Emittance

0.61

Typical value only

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

88 K to 423 K

DuPontís Data

Moisture Absorption

0.01%

DuPontís Data

SPECIAL RECOMMENDATIONS

          The material is available in thicknesses of 12, 25, 50 and 125 mm.

          The material is available in widths up to 1220 mm.

          The material is available with #966 adhesive on the metallised side.

          The material is available with perforations.

          An ITO transparent, conductively-coated film is available. Consult the manufacturer for further details.