Table 5.

Surface Free Energy Components of SNPSA and SNPT after COM Treatment at 20 °C^a

metal material	AgNP proportion (%)	γS	${\gamma }_{\mathrm{S}}^{\text{LW}}$	${\gamma }_{\mathrm{S}}^{\text{AB}}$	γS+	γS−	$\text{SEP}({\gamma }_{\mathrm{S}}^{\text{AB}}/{\gamma }_{\mathrm{S}}\mathrm{\%})$	$\text{SEADI}{({{\gamma }_{\mathrm{S}}}^{+})}^{1/2}{({{\gamma }_{\mathrm{S}}}^{-})}^{1/2}$
SNPSA	0	38.16	37.38	0.78	0.07	2.22	2.04	0.178
	10	41.44	36.30	5.14	1.22	5.39	12.4	0.476
	20	42.83	36.09	6.74	1.97	5.76	15.7	0.585
SNPT	0	38.05	37.32	0.73	0.06	2.30	1.92	0.162
	10	39.03	36.97	2.06	0.24	4.36	5.28	0.235
	20	39.27	36.82	2.45	0.28	5.35	6.24	0.229

^aNotes: γ_S, solid surface free energy component; ${\gamma }_{\mathrm{S}}^{\text{LW}}$, nonpolar Lifshiz–van der Waals component; ${\gamma }_{\mathrm{S}}^{\text{AB}}$, polar Lewis acid–base component; γ_S⁺, Lewis acid component, electron acceptor; γ_S⁻, Lewis basic component, electron donor; SFP, surface fractional polarity; SEADI, surface electron accepting/donating index.