Heat-treated Films

PI (no film)

150˚C

200˚C

250˚C

300˚C

WVTR (g/m²/day)

143

92.8

40.9

13.8

1.36

Photo-irradiated Films

r.t.

80˚C

100˚C

120˚C

150˚C

WVTR (g/m²/day)

130

15.3

3.42

1.84

0.17