01
Contents
02 A commitment to cast film
03 Chill-roll process
04
Blown film process 04
Quenching bath process 05
Influence of processing on film properties 06
Types of polypropylene 07
Molecular Weight Distribution (MWD)09 Influence of C 2 content on film properties for random copolymers
10 Conversion
12 Coextrusion
13 Stan d ar d applications
14 New application trends
19 Troubleshooting gui d
e
09
Influence of C 2 content on film properties
for random copolymers
700
600
500
400
300
20064810T e n s i l e m o d u l u s (M P a )(Mol % C 2)Figure 13: Influence of C 2 content on stiffness.
Borealis standard film with thickness 50 μm
Figure 14: Influence of C 2 content on tenacity.
Borealis standard film with thickness 50 μm 40353025201510546
810P e n e t r a t i o n e n e r g y (J /m m )(Mol % C 2)
3.8
3.6
3.4
3.2
3.02.82.62.42.22.01.81.61030507090110130150H a z e (%)4 mol % C 26 mol % C 28 mol % C 210 mol % C 2
Film thickness (μm)Figure 15: Influence of C 2 content on transparency as f (film thickness).
Film thickness (μm)Figure 16: Influence of C 2 content
on gloss as f (film thickness).
Film thickness (μm)
G l o s s (%)110100908070
60
504010
30507090
110130150Film thickness (μm)4 mol % C 26 mol % C 28 mol % C 210 mol % C 2
161412108642046
810(Mol % C 2)P e n e t r a t i o n e n e r g y d y n a t e s t D I N 53373 (J /m m )+/-0°C -3°C -6°C -8°C -10°C Figure 17: Penetration energy at low temperatures as f (C 2 content)Figure 18: Influence of C 2 content
on welding range.
Borealis standard film with thickness 50 μm
1401301201101009046810
W e l d i n g r a n g e (°C )(Mol % C 2)