A.17.9. Dunmore TM05564

PRODUCT

Type

Thermal Control Plastic Film

Chemical Composition

Fluorocarbon (FEP-Type C), Aluminised

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

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

Dupont Data

Thickness

50 mm

Manufacturer's Data

Tensile Strength

21 MPa

Manufacturer's Data

Thermal Expansion Coefficient

89.3 x 10-6 C -1

Dupont Data (-50 to +70C)

Thermal Conductivity

0.194 W m -1 C -1

Dupont Data

Specific Heat

1.17 J g-1 C -1

Dupont Data (-50 to +70C)

Dielectric Strength

160 kV mm -1 (of FEP Film)

Dupont Data (@ 23C)

Surface Resistance

>1015 W

Dupont Data / ASTM D257-61

Volume Resistivity

>1015 W m

Dupont Data (@ 23C & 38% RH)

Solar Absorptance:

 

 

Aluminised Surface

0.07

ASTM E424 Method A

Film Side

0.10

ASTM E424 Method A

Normal Emittance:

 

 

Aluminised Surface

0.02

ASTM E408 Method A

Film Side

0.67

ASTM E408 Method A

Standard Width

122 cm

Manufacturer's Data

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

-175 to +150C. Max. Operating Temp. 205C

Dupont Data

Outgassing

TML = 0.21%, CVCM = 0.00%

ASTM E-595

Moisture Absorption

1.3% @ 50% RH

Dupont Data (@ 23C)

SPECIAL RECOMMENDATIONS

          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.