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APICAL
Type AF Polyimide Film
Types
AV, AF, and NP APICAL Polyimide Film are listed by Underwriters
Laboratories, Inc. under their file number E135495. A
thermal index of 240°C (464°F) for electrical
properties (all types and gauges) and 200°C (392°F)
to 220°C (428°F) for mechanical properties (depending
upon the type and gauge) are listed.
Underwriters
Laboratories, Inc. lists flammability of UL94-VO for Types
AV, AF, and NP APICAL Polyimide Film.
| Heat
Seal Strength of APICAL Type AF Polyimide Film |
The
film-to-film heat seal strength between AF type films
(coated side to coated side or uncoated side depending
upon type) is measured in the following manner:
Seals
are made in a jaw sealer at 350.C [662F], 20 psi, 20 sec
dwell time. After cooling, the seals are cut to 1" (25.4mm)
wide strips. The strength of the seal is measured with
an Instron-type tensile tester. Seal strength is defined
as peak reading for each seal and five specimen values
are averaged.
Minimum
heat seal strengths shall be:
450 g/in (1.7 N/cm) between uncoated side and coated side
or between 120AF616 and 120 AF616
600
g/in (2.3 N/cm) between coated side and coated side of
all other AF types.
The
bond strength between FEP and polyimide film on all Type
AF films (except 120AF616) shall have a minimum value
of 200 g/in (0.77 N/cm) as measured using an Instron -type
tensile tester.
Technical
Data
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