Table 3.

Analysis of the contact angle value and contact angle hysteresis for various surfaces and liquids.

Lubricating liquids	Zipper surface material	Contact angle CA (°)	Contact angle hysteresis CAH (°)
65 % Glycerol	Steel X90CrMoV18	${39.2}_{-5.4}^{+7.8}$	${46.5}_{-3.2}^{+2.3}$
65 % Glycerol	AlTiN/CrN/Cr/…/CrN/Cr	${32.1}_{-5.8}^{+6.4}$	${48,7}_{-2.1}^{+2.2}$
65 % Glycerol	AlN/CrN/…/AlN/CrN	${38.5}_{-4.6}^{+5.5}$	${45,2}_{-2.4}^{+2.3}$
65 % Glycerol	CrN/AlN/…/CrN/AlN	${61.7}_{-4.8}^{+54}$	${24,5}_{-1.4}^{+1.4}$
65 % Glycerol	SiO2	${53.1}_{-7.7}^{+8.4}$	${35.1}_{-2.9}^{+2.6}$
65 % Glycerol	Cr	${66.8}_{-5.4}^{+5.1}$	${34.9}_{-2.4}^{+1.7}$
99 % Glycerol	Steel X90CrMoV18	${46.3}_{-4.6}^{+4.8}$	${47.4}_{-1.1}^{+1.1}$
99 % Glycerol	AlTiN/CrN/Cr/…CrN/Cr	${42.7}_{-3.2}^{+4.1}$	${45.2}_{-1.3}^{+1.5}$
99 % Glycerol	AlN/CrN/…/AlN/CrN	${45.2}_{-3.7}^{+2.4}$	${47.4}_{-1.0}^{+1.4}$
99 % Glycerol	CrN/AlN/…/CrN/AlN	${69.8}_{-3.4}^{+2.8}$	${35.2}_{-1.1}^{+1.2}$
99 % Glycerol	SiO2	${62.3}_{-4.3}^{+3.8}$	${33.8}_{-1.3}^{+1.6}$
99 % Glycerol	Cr	${74.6}_{-3.6}^{+4.2}$	${47.4}_{-1.9}^{+1.1}$
Oil	Steel X90CrMoV18	${26.1}_{-5.9}^{+5.8}$	${31.2}_{-1.8}^{+1.6}$
Oil	AlTiN/CrN/Cr/…CrN/Cr	${12.4}_{-2.2}^{+3.4}$	${28.8}_{-1.4}^{+1.2}$
Oil	AlN/CrN/…/AlN/CrN	${20.6}_{-1.5}^{+1.8}$	${30.9}_{-1.2}^{+1.7}$
Oil	CrN/AlN/…/CrN/AlN	${54.6}_{-1.6}^{+2.1}$	${18.7}_{-1.9}^{+1.6}$
Oil	SiO2	${46.7}_{-1.1}^{+2.1}$	${26.6}_{-1.1}^{+1.3}$
Oil	Cr	${56.2}_{-2.7}^{+1.5}$	${25.1}_{-1.2}^{+1.2}$