Table 2 Contact angle of water and diiodomethane with obtained films with different amount of Expancel, and results of the SFE calculations along with disperse and polar components.

From: Influence of the modification with polymer microspheres on the structural, mechanical and post-processing properties of extruded thin-walled LDPE films

Sample

Water

[°]

Diiodomethane

[°]

SFE Total

[mN/m]

Disperse component

[mN/m]

Polar component

[mN/m]

0Ex

90.03

47.97

36.85

35.40

1.45

1Ex

98.30

48.62

35.28

35.04

0.24

3Ex

104.06

61.91

27.66

27.48

0.19

5Ex

122.72

65.38

26.40

25.48

0.92

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