Table 4.

Values of contact angle total surface free energy, its components determined by Owens–Wendt and van Oss–Good–Chaudhury method.

PHU	Contac Angle	Surface Free Energy (mJ∙m−2)
		Owens-Wendt (dw) 1			van Oss–Chaudhury–Good (dfw) 2
	Water	γ D	γ P	γ T	γ LW	γ AB	γ +	γ−	γ T
NIPU1	77	45	4	48	45	4	2	2	48
NIPU2	73	44	5	49	44	5	2	4	49
NIPU3	66	46	8	53	46	5	1	10	51
NIPU4	68	46	7	52	46	2	1	11	48
NIPU5	79	44	3	47	44	1	0	6	45
PHU-Ar	71	45	6	50	45	4	1	8	48
PHU-C6O2	68	45	7	52	45	1	0	15	46
PHU-C10O3	58	46	11	57	46	10	1	31	55
PHU-CC6	73	41	6	47	41	2	0	13	43

¹ based on CA of water and diiodomethane; ² based on CA of diiodomethane, formamide and water.