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. 2019 May 29;11(6):935. doi: 10.3390/polym11060935

Table 3.

Surface energy of different surfaces.

Sample Contact Angle (°) Surface Energy (mN/m)
WA DM γ γd γp
PP 105 63 26.9 26.7 0.16
PS 110 45 38.5 38.0 0.46
PS(F) 120 91 12.3 12.2 0.07
PS(O) 21 55 68.5 25.6 42.9

Note: γ, total surface energy; γd and γp, dispersive and polar components of surface energy, respectively. For WA, the dispersive and polar components of 21.8 mN/m and 51.0 mN/m, respectively, were used [54]. For DM, the dispersive and polar components of 50.4 mN/m and 0.4 mN/m, respectively, were used [54].