Experimental Study of the Influence of the Adsorbate Layer Composition on the Wetting of Different Substrates with Water

Table 2

Results of Becker et al. [20] for the water contact angle , adsorbate layer thickness , and atom number fractions of oxygen , polar carbon , and nonpolar carbon in the adsorbate layer measured for the differently prepared technical steel and titanium samples. The statistical uncertainty of the water contact angle is . No information on the statistical uncertainty of the atom number fractions is available, but it can be assumed that they are similar to those reported in Table 1 as the same methods were used.

Material	Oil exposure	Cleaning agent	(°)	(nm)
Steel	No-oil	AAA	67	3.7	0.39	0.21	0.40
		CCC	76	4.3	0.47	0.19	0.34
		III	61	3.4	0.31	0.24	0.45
	Oil	AAA	95	14.3	0.77	0.12	0.11
		CCC	78	5.3	0.57	0.18	0.25
		III	92	8.0	0.68	0.14	0.18
Titanium	No-oil	AAA	86	3.6	0.45	0.25	0.30
		CCC	72	3.3	0.41	0.25	0.34
		III	63	3.0	0.33	0.24	0.43
	Oil	AAA	98	10.8	0.74	0.15	0.11
		CCC	74	4.9	0.51	0.22	0.27
		III	103	10.1	0.73	0.15	0.12